PROJECT: "POPO" camaro

[wysemunky]

I'm sure you know somebody with a hacksaw and a welder.

[popo8]

I keep looking at the difference between the lt1 4l60e and lt1 400 turbo and it almost looks like you could cut the trans mounting tab off and move it to the other side of the cross member. So if you decide you don't want to hack on it, let me know cause I might be hacking one up anyways. I just can't see spending $260 on a new one.


Ill tell you what.... I am going to take the car to the shop this weekend and put it in the air... if its close and only needs a MINOR tweak, I will make it work... if not.... I will sell it to you if you want..... Not sure what to ask, but feel free to make me an offer via PM.....

Id rather take a loss and sell it to you (for your LTX project), than sell it to an LSXer and make money.... lol

I'm sure you know somebody with a hacksaw and a welder.


I do... Im willing to do minor manipulations... but if its to radical of a cusomization... Ill just get the right one...

[popo8]

I keep looking at the difference between the lt1 4l60e and lt1 400 turbo and it almost looks like you could cut the trans mounting tab off and move it to the other side of the cross member. So if you decide you don't want to hack on it, let me know cause I might be hacking one up anyways. I just can't see spending $260 on a new one.


I'm sure you know somebody with a hacksaw and a welder.


For almost 300 bucks I would just make it work. Unless its more severe of a change then what I'm thinking, but then I would just make a trip to the steel yard lol.

220 for the UMI one, and if I sell the one I have ...its hardly 300 bucks....

In fact if I sell it for 150, thats over 100 dollar saving for someone new.... and then would only be an additional investment of 70 bucks... far from 300

[wysemunky]

well then sounds like you got a plan!

[firebird_1995]

I think it will go in without much modification.

[popo8]

I think it will go in without much modification.

From comparing pics to the unit here... it looks like the mounts to the driver side of the car may be all that does not fit.... Appears on the LTX , the holes are further forward, where on the one I have they are nearly straight across...

[popo8]

Well its been confirmed that the trans cross member can not be used without modification in my car.....

Fortunately, firebird_1995 is saving me and purchasing it (thank you Brotha)....

I will order the correct one within the next few days, and hopefully have it all on before X-MAS.

[popo8]

Proper crossmember ordered...


Larry (Popo8) Co-owner
LTXtech.com

[popo8]

Got all the right stuff now.....

[popo8]

13139


Larry (Popo8) Co-owner
LTXtech.com

[popo8]

Nice when is it getting installed?

I need to see when Blue Bottle Z is available.... and I also need to see when my other friends with a drive on lift are available so we can set it up correct......

Once I can get that to sync.... it should be quick.. and hopefully Ill be able to throw in my chromoly DS.... at that point I should be STRONG and ready for sticky tires.

[popo8]

Gotta drop the DS anyways so might as well

Just not sure if it has the right end on it for my 9"

[popo8]

LSX aluminum....

[Ryan Stout]

Draw a line down it and check it regularly to make sure you're not twisting it. I have a Speed Inc, its a good unit (yeah, I said unit).

[popo8]

Draw a line down it and check it regularly to make sure you're not twisting it. I have a Speed Inc, its a good unit (yeah, I said unit).

Are you talking about the DS...?

If so, I have a chromoly one that will be replacing the LS one.

[popo8]

I bought it from a member on the site, and dont know if the chromoly one has the end that matches the rear... I know the rear can accommodate stock end... but the other is what I dont know.

[popo8]

Ok... Spoke with BLUEBOTTLEZ....and looks like we will have my car in the air today (now) to swap everything in....

Hopefully greg robs chromoly ds is plug and play for me and requires no balancing and it will be in..... Plus the new ta and relocation set up.....


Larry (Popo8) Co-owner
LTXtech.com

[popo8]

Ok....


So, I wake up at 11..... and get ready to head to the shop.... Of Course.... its raining.....

No biggie.... I aint skerred...

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/1-11.jpg

Arrive, and get some other stuff done at the shop.... then bring the car in to dry off...

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/11-2.jpg

Of course.... NOTHING goes smooth...... Custom Y pipe.... in the way of the the mount for the relocation bracket.... we discuss cutting the new bracket then agree to heat and beat the Y pipe to clearance .....

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/111.jpg

All the heating and beating... NOT enough... BluebottleZ (Chris) advises to cut half the Y off... shorten it... and place it back on.... IT worked to give us the necessary room...in conjunction with the heat and beat area...

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/1111.jpg

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/11111.jpg

Got the relocating bracket and Poly Trans Mount in...... and start trying to figure out how to get the TA in.... lol

It wont fit..... with the section of cut out exhaust still out, we could not get the right angle to get it in..... tied lifting the rear to get some more.... NOT ENOUGH... sooooo, we pull the mounting bracket off the 9"..... mount it to the TA....
Of course the 9"s mounting bracket requires a little clearancing... so after its ground down a bit.... the TA is mounted.. then with the 9"s mounting bracket attached to the TA at one end... the poly bushing for the relocating bracket mounted on the other end... it goes in as one big piece........

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/111111.jpg

Chromoloy DS installed to replace the LS1 aluminum DS..... Weird thing is it was about 1" shorter than the other one from tip of the yoke to the end... but it worked great..... At least it is now......

http://i86.photobucket.com/albums/k110/popo08/1996%20Procharged%20385%20Lt1%20Camaro/1111111.jpg


Btw, we got done with everything it was time to re install the section of the Y we cut off... well while on the pipe expander... It tore... sot it was thrown back on.... and BlueBottleZ, clamped and welded the split closed for me.....

No leaks... everything fit.... although for NOW, the Instant center settings on the transmission relocation bracket is set all the way up (really have no idea what Im doing so figured, start at one end... and trial and error from there)....

We ran out of opportunity to make it to the OTHER shop to use the drive on lift so we were unable to set up the pinion angle....

I know its not right, because it was still raining out, and after my test drive I gave her a lil hell and got some wheel hop in the rain.... and..... Im having a lil vibration when letting out of the throttle SOME of the time.....between 65-70 mph....

Hopefully I can get some drive on lift time and get it adjusted.......

[94Blackbird]

I'm sure it'll be better once you get it adjusted.

[popo8]

I'm sure it'll be better once you get it adjusted.

Im pretty sure as well... just in case the chromoly DS requires balancing... I still have the aluminum one to keep the car rolling.....

And if we set the pinion angle right and still have the vibe... Ill swap the old DS in just to reduce the amount of variables...

Im excited for some dry weather...lol

[94Blackbird]

I think the vibration will go away once you get the pinion angle adjusted properly. If I remember correctly, the pinion angle being off can cause driveline vibrations.

[popo8]

I think the vibration will go away once you get the pinion angle adjusted properly. If I remember correctly, the pinion angle being off can cause driveline vibrations.

I believe it def is.... just making sure I have all my bases covered...

[popo8]

Cool. well for now... leaving the front setting all the way up.. and will adjust the pinion angle when I can get the drive on lift....


Then STICKY tires...

[popo8]

Torque arm and relocating trans mount installed, as well as a poly trans mount and my chromoly DS.

We did not set the pinion angle yet..... but hopefully soon...when the weather gets better.


1478014781147821478314784

[popo8]

I dont want anyone thinking Im being redundant on the questions, so i did do a search, and it did not go to into detail.

Here is the thread I found:
http://ltxtech.com/forums/showthread.php?10342-Pinion-angle

Now, many of you know I was running a stock TA to the Trans tail... and was having some wheel hop issues.... so I upgraded to a new trans mount with a relocating TA mount.

DETAILS HERE:
http://ltxtech.com/forums/showthread.php?20491-Had-a-little-issue-today

Now, on the drive home, I have a 70mph vibration which i think is based on the pinion angle not being set. So I want to get it done.

My car is lowered 2" with LCA relocating brackets....


I just want my car 100% and this vibration... and an axle seal leak are all that I have left.


So please let me know where to set pinion angle to avoid the vibration and the wheel hop.


Thanks all.

[MeanTA]

What is your pinion angle at right now? stock is -2°

[popo8]

What is your pinion angle at right now? stock is -2°

Have not even measured it... we swapped the new stuff on 2 months ago... it got late, I drove it home.

I can tell you the TA was installed at the angle that it came set at, and it was on a stock ride height LS car. So I know its not "right."

[MeanTA]

My car is dropped 2 inches also. My pinion is set at -1.5°. It is what worked best for my setup.

[popo8]

My car is dropped 2 inches also. My pinion is set at -1.5°. It is what worked best for my setup.


Ok, are you using a relocating TA/trans mount?

[MeanTA]

Yep. Im using a umi relocating trans mount and TA.

[popo8]

Yep. Im using a umi relocating trans mount and TA.

See I have an issue that I dont have any adjustment because of my y pipe.. so my instant center is where it is... all my pinion angle changes will be made from the rear nuts....

[MeanTA]

See I have an issue that I dont have any adjustment because of my y pipe.. so my instant center is where it is... all my pinion angle changes will be made from the rear nuts....

where is your TA set at on the crossmember? My umi has different slots to bolt the clamp. Mine is set 2 from top(low). you don't need to move it to the top. just adjust your pinion on the TA and you will be set.

[popo8]

where is your TA set at on the crossmember? My umi has different slots to bolt the clamp. Mine is set 2 from top(low). you don't need to move it to the top. just adjust your pinion on the TA and you will be set.



153991540015401


I cant remember, but its the only place I could fit it without pinning it against the exhaust.

[MeanTA]

I thank your fine there. Just adjust your pinion angle. And you will be set.

[popo8]

I thank your fine there. Just adjust your pinion angle. And you will be set.


I hope so.. I have access to a drive on lift to make it easier also....

If it still vibrates, Ill send out my new chromoly DS (put that in the same night, I KNOW I KNOW, to many variables at the same time) for re balancing.

[MeanTA]

Im going to say the vibration is your PA. since it hasnt been adjusted. A out of balance DS feels like the world is coming to a end lol

[BIG CAT]

-1 to -2 is what you want for a trq arm car. You can get a cheap angle finder at most home improvement stores. Make sure you set it at ride height.

[popo8]

-1 to -2 is what you want for a trq arm car. You can get a cheap angle finder at most home improvement stores. Make sure you set it at ride height.

We have the angle finder at the garage... and thats why I was saying earlier that i have access to a drive on lift... so I dont have to be on the ground to set it.... lol

[BIG CAT]

We have the angle finder at the garage... and thats why I was saying earlier that i have access to a drive on lift... so I dont have to be on the ground to set it.... lol
Then what are you waiting for? Let get cracking. :p:p

[popo8]

Then what are you waiting for? Let get cracking. :p:p


Salt and snow... :(

Larry (Popo8) Co-owner
LTXtech.com

[popo8]

This is corvette/escalade season... The camaro stays protected.


Larry (Popo8) Co-owner
LTXtech.com

[Badhawk]

Larry, this link is very helpful with explaining how to measure and even provides some pics.


http://www.dragzine.com/tech-stories/drivetrain-angles-increase-torque-and-improving-hook/

[popo8]

Larry, this link is very helpful with explaining how to measure and even provides some pics.


http://www.dragzine.com/tech-stories/drivetrain-angles-increase-torque-and-improving-hook/

Awesome man.... Thanku!


Larry (Popo8) Co-owner
LTXtech.com

[Badhawk]

Awesome man.... Thanku!


Larry (Popo8) Co-owner
LTXtech.com


No problem if it doesn't fix the problem then your drive shaft needs to be rebalanced.

[popo8]

No problem if it doesn't fix the problem then your drive shaft needs to be rebalanced.

YEah... Im hoping it is just pinion angle though....

No biggie either way....

Thanks again!

[Ninety5PoloZ]

Here is how I set my pinion angle on my MWC rear. I also have a Strange chromoly DS with forged yoke. I'm still getting a vibration, but I think it's from my trans now :( IMHO invest in a magnetic digital angle finder, you can pick one up at Harbor Freight for ~$20 and it's a lot more precise than trying to read the cheap dial indicators

http://midwestchassis.com/uploads/3/0/1/4/3014283/pinion_angle.pdf

[Ninety5PoloZ]

Is the driveshaft you got for a stock rear end? If so it will be about 1" too short with the 9" in there IIRC. The yoke may be wobbling inside the transmission and causing a vibration. Also on the instant center setting on the TA relocation bracket you should really start in the middle and adjust from there. Moving the instant center setting will also move the pinion angle so keep that in mind.

What hole do you have you LCAs in on the axle? Changing the angle on your LCAs has a lot to do with wheel hop. On my car (lowered ~2") I had to have the LCAs angled up towards the back a little bit to get rid of my wheel hop. It wasn't a lot of angle but maybe something like 4-5* if that.

Good luck man :cheers:

[popo8]

Is the driveshaft you got for a stock rear end? If so it will be about 1" too short with the 9" in there IIRC. The yoke may be wobbling inside the transmission and causing a vibration. Also on the instant center setting on the TA relocation bracket you should really start in the middle and adjust from there. Moving the instant center setting will also move the pinion angle so keep that in mind.

What hole do you have you LCAs in on the axle? Changing the angle on your LCAs has a lot to do with wheel hop. On my car (lowered ~2") I had to have the LCAs angled up towards the back a little bit to get rid of my wheel hop. It wasn't a lot of angle but maybe something like 4-5* if that.

Good luck man :cheers:


My current Y pipe is not giving me much choice with the instant center... so I have to work around that for now.

And as far as I know, that DS was part of a 9" set up, and had like 50 miles on it. I bought it from Greg Rob on here.

It def is SHORTER than the LS one I pulled out....

[94Blackbird]

What hole do you have you LCAs in on the axle? Changing the angle on your LCAs has a lot to do with wheel hop. On my car (lowered ~2") I had to have the LCAs angled up towards the back a little bit to get rid of my wheel hop. It wasn't a lot of angle but maybe something like 4-5* if that.



What do you mean angled up towards the back? Like the axle end is higher than the body end?

[Ninety5PoloZ]

What do you mean angled up towards the back? Like the axle end is higher than the body end?


Yes, very slightly angled up at the rear worked really well for me for street driving. If you are drag racing you can have it angled down at the rear slightly. That way the LCAs will be level under hard acceleration. But every car is different

[popo8]

I am not a racer...but i wamt to launch it amd stick with no wheelhop.

Or rolling burnouts ...no wheel hop


Larry (Popo8) Co-owner
LTXtech.com

[Ninety5PoloZ]

I am not a racer...but i wamt to launch it amd stick with no wheelhop.

Or rolling burnouts ...no wheel hop


Larry (Popo8) Co-owner
LTXtech.com

That is what worked really well for me doing just that.

[popo8]

Working on getting the PA set up...

I was getting the vibration at 65-70mph on up..... guaranteed.

NOW.... it is only hitting every once in a while... and the shifter knob no longer vibrates like someone was paging me "911." (if anyone remembers beepers)

Now, it hits every once in a while....(above 70mph) and to get it to stop I need to just accelerate a lil...
Also noticed rear of the TA, is hitting the rear tunnel... I need to clearance the floor a bit.....and see if that helps out as well.


So, next weekend, when we fix the axle seal, we will throw another 1/4 turn into it and see if that fixes it.

[popo8]

Well, Im hoping to be able to put this thread to bed soon... I know projects are NEVER done, but honestly, I have to be just a lil more responsible.. and start saving strong for our wedding. This Friday, we will do a axle seal, and a lil more adjustment on the pinion angle, and I hope to be able to call the car 100%....for now, or till something breaks.

She is a pump gas driver at 602rwhp... and decent fuel mileage...stereo, power windows locks, and AC..... Im satisfied with that. so look for me to wrap it up after friday night. Then to save BIG TIME for this wedding... sigh.

[popo8]

Well the vibration is GONE!

The chromoly DS I purchased was almost 2" shorter than the ls shaft and had some play... i never would haVe believed it....but its gone... maybe just a balance issue with it... but either way.... its a pleasure to drive again.


Larry (Popo8) Co-owner
LTXtech.com

[popo8]

Was the new DS just a replacement piece or was it supposed to be shortend? How much of the yoke was on the output shaft? Lucky it didn't rip the spines off the end if it was too short.

it was holding on by about an inch...while the car was hangin....and i was not told it was sup to be shortened. the person who sold it to me clained he had the same set up as me...and went a different direction and couldnt use it.


Larry (Popo8) Co-owner
LTXtech.com

[Sahara54]

Ahh, Yeah, it was prob only another 1/4" or 1/2" at ride height. Scary, could have let go. We had our V8 S10 DS blow the yoke apart at about 80mph. Took out everything. Its why we parted the truck. Good catch.

[popo8]

Ahh, Yeah, it was prob only another 1/4" or 1/2" at ride height. Scary, could have let go. We had our V8 S10 DS blow the yoke apart at about 80mph. Took out everything. Its why we parted the truck. Good catch.

I feel like an ass for missing it.. but once again...I just took someones word and went for it without comparing


Larry (Popo8) Co-owner
LTXtech.com

[Sahara54]

I wouldn't have checked either, man. Its just one of them things.

[popo8]

Well got a nice forecast this week...and with the tune...right. the vibration gone... gonna get alot of miles on her and make sure she is ready for the road trip to ocmd next month.


Larry (Popo8) Co-owner
LTXtech.com

[popo8]

no dead horse... i have brought it to the shootout before.

I believe the joke u were looking for was..."will u be racing it this year?" where i would respond...I dont race.

Then u would say... "I cant stand people who build a car then dont race it."

and i would think to myself.... awwww, he actually wants to see whose is bigger. Dont worry...I know the answer. :)




Larry (Popo8) Co-owner
LTXtech.com

[CALL911]

Lol, nope. I literally was just hoping to see the car make the trip to the shootout since I haven't seen it yet. You've already made it very clear you're not racing it.

[popo8]

And I'll be there. Don't forget that.


I can't wait!! (I think Lacey counts down more than I do lol)

Well now that my OCMD vaca is almost over...I can focus on the LTX SHOOTOUT countdown.

Which off the top of my head is a lil over 100 days...


Larry (Popo8) Co-owner
LTXtech.com

[popo8]

oh yeah...and it got 22mpg on the way home.

[CamaroZGuy]

oh yeah...and it got 22mpg on the way home.

dam i hope i can see numbers like this!

[popo8]

dam i hope i can see numbers like this!

6spd kicks ass man.




Larry (Popo8) Co-owner
LTXtech.com

[popo8]

So I got the car up on the lift yesterday and she is coated in SAND... lol... Spent over an hour with the airgun, blowing the sand out of everything... it was like a desert sand storm in the shop while I was doing it....

I then pulled the SPECTRA air filter which is supposed to be red...but... it was beige...PACKED touch with sand and dirt....

see the issue is, the MONDO points straight down, right next to it... and that week of cruising around in OCMD it blew straight down on all the sand covered roads and with the huge filter right next to it trying to suck air in...it was a bad mix.

One scattered the sand...the other tried to suck it up.. then with the last day being rain...that turned into wet sand and packed itself... needless to say, the car is runing noticably better.....

AN oil change, just in case she decided to injest some sand showed me clean oil.....


Oh yeah...also found the vent on my 9" was pushing rear fluid....(its just a hose running off a fitting, over the panhard then pointing back down... gonna need to find a dif set up, so it doesn't run itself dry

[popo8]

19882

THINKIN bout taping off the black and geting some black plati dip...

Co-Owner/Admin @ LTXtech.com

[popo8]

Taping off what black?


DOH, its sup to say, taping off the white... and re shooting with plasti-dip the
hood and nose... where it is flat black now...

[popo8]

Some of u who follow me on fb...will see i have been trying to get my 9" to stop spitting gear oil all over the back of my car.

I do not believe it is over full...I use the pinky method (in the fill hole) after filling....and even now...its puked oil all over the back of my car twice now... So its LOWER.

Ill try to get some pics...but here is the deal.

The driver side axel has the vent hole. I have one of those lil fittigs in there with the steps to grab on to the inside of a hose.... The first time we never put a hose on it...and there was never a noticable issue. ....


One time when it was in the air...we thought about it and were concerned dirt or water would get in... So put a hose on it... Zip tied it up...pointing upward as a "vent"... And topped off the oil (pinky method)

Drove 3 hours to ocmd...and it spit a lil gear oil on my plate..rear bumper.....

Returned home... Cleaned it up... Light mess under the car...and appeared wind whipped it up and around.

Removed hose... Got longer hose... Looped it over a bracket and now pointed it downward.....

Drove around...and its spitting worse..... Sooooooo

Yest i went and got a baby spectra filter.... Went back to the short hose....put the filt on one end... Amd zip tied it upward straight in the air like a stiffie... cleaned everything....drove 30 miles and my entire ass end is hosed in gear oil...from under the car to the underside of my spoiler.


Now i have not looked to see if i lost the filter or hose... But it was suggested to me that if thebfitting is any longer than FLUSH with the inside of the tube...it may be close enough to the fluid that its being whipped up into it...and beginning a syphoning effect...and literally pumping the fluid out.


Ideas...and maybe pics of what u all have....


My rear is a 9" with 35 spline axels...and locker with 3.90s if that makes a difference....


Co-Owner/Admin @ LTXtech.com

[popo8]

21664

Co-Owner/Admin @ LTXtech.com

[popo8]

Headin out to put her in the air and pull the fitting.

Co-Owner/Admin @ LTXtech.com

[BIG CAT]

same problem here.the axle shaft is slinging it up into the filter. we have that same cheap filter on it also. lol it has slowed down a lot now that the element is really dirty.:shiner:
at this point i am thinking a puke tank filter setup might be in order. so the oil drains back when its sitting.

[popo8]

same problem here.the axle shaft is slinging it up into the filter. we have that same cheap filter on it also. lol it has slowed down a lot now that the element is really dirty.:shiner:
at this point i am thinking a puke tank filter setup might be in order. so the oil drains back when its sitting.

Ohhhh... Ok... So it would go into a tank... But how would it go back into the rear?

Co-Owner/Admin @ LTXtech.com

[popo8]

216662166721668


Ughhhh...and my garage reeks of gear oil.

Btw..my Berger is FLAT black.


Co-Owner/Admin @ LTXtech.com

[Fastbird]

Would it be possible to pull the axle and put a baffle over the hole at all?

[Badbird_96]

Im pretty sure the vent is supposed to be open to atmosphere. Could be mistaken but you had no issues before putting the hose on it. But if its concerning you with water and dirt you could use a pressure valve on it. So much pressure it would crack and relieve the excess pressure and close preventing any leakage.


Edit - something like this.

http://straval.com/relief-valves/rvi-05/

[Fastbird]

Jesse that's actually a really good idea! Good call man

[JCzNova]

It's not that spare quart of oil tipping over and leaking out of your trunk is it? :laugh:

[BIG CAT]

Ohhhh... Ok... So it would go into a tank... But how would it go back into the rear?

Co-Owner/Admin @ LTXtech.com

it would gravity drain back.

[popo8]

Would it be possible to pull the axle and put a baffle over the hole at all?

Idk if there is enough room inside the axel tube.

Co-Owner/Admin @ LTXtech.com

[BIG CAT]

Would it be possible to pull the axle and put a baffle over the hole at all?

this would work. only down side is you would need to completely tear down the rear to weld it in because the vent is close the center section.

[popo8]

216692167021671


Ophhh this mess is KILLING me... Gonna beed alot of brake kleen.

Co-Owner/Admin @ LTXtech.com

[popo8]

21672

Thats not 2 much thread is it. Im assuming the axel tube is close to that thickness.... Yes/no?

Co-Owner/Admin @ LTXtech.com

[dawdaw]

I'll have a 9" for sale in 3 months ;) buy it! it doesn't leak either :whistle:

[popo8]

I'll have a 9" for sale in 3 months ;) buy it! it doesn't leak either :whistle:

I have a 9"...and it doesnt leak...its pushing it out the vent.


But thats a great idea.. Ill pull my 9" out...wait 3 months and buy another one..instead of finding a resolution to this....


Co-Owner/Admin @ LTXtech.com

[popo8]

Im pretty sure the vent is supposed to be open to atmosphere. Could be mistaken but you had no issues before putting the hose on it. But if its concerning you with water and dirt you could use a pressure valve on it. So much pressure it would crack and relieve the excess pressure and close preventing any leakage.


Edit - something like this.

http://straval.com/relief-valves/rvi-05/

I didnt notice before putting the hose on it... Idk if it did or not. DEF not like it does now.

Co-Owner/Admin @ LTXtech.com

[popo8]

this would work. only down side is you would need to completely tear down the rear to weld it in because the vent is close the center section.

My vent is just to the center of the mounting bracket on the driver side... Are they in dif locations?


Edit... Now that i look at the pic..thats close to the center


Co-Owner/Admin @ LTXtech.com

[popo8]

I'll have a 9" for sale in 3 months ;) buy it! it doesn't leak either :whistle:

How is ur vent set up

Co-Owner/Admin @ LTXtech.com

[popo8]

So i took a screw driver amd stuck it in the hole to see how far in the axle was. the tape edge is the outsode edge of the tube.

I took a pic of the two together to show how close tonthe axel the vent fitting is...

2close??????

21689

Co-Owner/Admin @ LTXtech.com

[Injuneer]

An alternative to the pressure relief valve would be a combination pressure/vacuum relief valve, like the one used on the fuel tank. Cheap, particularly if you find one in a junk yard. If the system is heating up and building pressure, venting through a pressure relief, you want the system to be able to pull air back in as it cools down. You also need to keep the pressure very low, or you're going to be blowing oil out the axle seals.

See Rob/Shoebox's photo (the white "vent valve" on the left):

http://shbox.com/1/fuel_pump_wiring.jpg

[popo8]

So if i get one of those white fuel tank vents.... What do i need to make it work...

And...

Wont using that where gear oil may push into it, gum it up as compared to fuel and fuel vapors?

Co-Owner/Admin @ LTXtech.com

[firebird_1995]

Does your fitting have a piece of sintered brass in it? I've seen them before that have those in it and its supposed to help stop oil droplets from blasting through

[popo8]

Idk what sintered means... But its straight thru... So im guessing no. Lol

Co-Owner/Admin @ LTXtech.com

[popo8]

Jesse made me think... Does anyone have any ideas why it would be worse aft adding hose...the worse aft adding filter?

Co-Owner/Admin @ LTXtech.com

[94Blackbird]

Siphon effect. By restricting the vent hole with the brass fitting and adding a hose, you have effectively created a very high pressure zone between your axle and atmostphere. you are going to have higher pressure in the axle than atmostphere, so it's going to want to draw the oil out the hose.

[Badbird_96]

Im thinking its causing it to hold too much pressure and the pressure is pushing fluid out with it. If you never have then grab a capri sun drink pouch. Insert the straw then blow into the pouch. The added pressure will push drink out until the pressure is equal inside and out.

[firebird_1995]

Im thinking its causing it to hold too much pressure and the pressure is pushing fluid out with it. If you never have then grab a capri sun drink pouch. Insert the straw then blow into the pouch. The added pressure will push drink out until the pressure is equal inside and out.

That's why you have to take a drink and waller the hole out before you hand it to your kids, unless you packed extra shirts!

[popo8]

Siphon effect. By restricting the vent hole with the brass fitting and adding a hose, you have effectively created a very high pressure zone between your axle and atmostphere. you are going to have higher pressure in the axle than atmostphere, so it's going to want to draw the oil out the hose.


Im thinking its causing it to hold too much pressure and the pressure is pushing fluid out with it. If you never have then grab a capri sun drink pouch. Insert the straw then blow into the pouch. The added pressure will push drink out until the pressure is equal inside and out.



Im seeing the two of you are thinking the same way I am.. I just did not want to say it in case its the SHADE TREE or SANDFORD and SON way...

The car did not give me issues when it was the open nipple.. then we added stuff to it to keep "dirt out", and in turn, I created less of an ability for it to purge pressurized air???? correct?

[94Blackbird]

Im seeing the two of you are thinking the same way I am.. I just did not want to say it in case its the SHADE TREE or SANDFORD and SON way...

The car did not give me issues when it was the open nipple.. then we added stuff to it to keep "dirt out", and in turn, I created less of an ability for it to purge pressurized air???? correct?

you gave it too much ability is what wound up happening, and it created such a strong draw that it's literally pulling the oil with it when it does try to purge

[firebird_1995]

This is a sintered brass (or bronze) fitting. I've seem them used a lot of rearend vents.
http://img.tapatalk.com/d/13/07/08/8azudyvu.jpg

[popo8]

Ive never seen anything like that. And that middle section is "breathable?"


This is a sintered brass (or bronze) fitting. I've seem them used a lot of rearend vents.
http://img.tapatalk.com/d/13/07/08/8azudyvu.jpg

[Dangerous95lt1]

Mine has 3 quarts in it. Doesnt blow any out

Sent from my SCH-I605 using Tapatalk 2

[1sickta]

I had the same problem on my 12 bolt. I was filling it to the top of the fill plug in the cover.

When I reset the gears I filled it to the correct amount and its been fine.

I would just see what the manufactor calls for as far as how much oil to put in and over fill it by going to the fill plug.

[gregpenechar]

Another thing to consider is how your gears are set up. We're they installed correctly? Incorrect clearance could be causing the pressure buildup. Just a thought.

[popo8]

Keep in mind...this was not a problem for many thousands of miles while it was an open nipple.

Co-Owner/Admin @ LTXtech.com

[popo8]

I had the same problem on my 12 bolt. I was filling it to the top of the fill plug in the cover.

When I reset the gears I filled it to the correct amount and its been fine.

I would just see what the manufactor calls for as far as how much oil to put in and over fill it by going to the fill plug.

Ohhhh...so the pinky method may be 2 much????

Co-Owner/Admin @ LTXtech.com

[popo8]

Mine has 3 quarts in it. Doesnt blow any out

Sent from my SCH-I605 using Tapatalk 2


What do u have in the vent hole

Co-Owner/Admin @ LTXtech.com

[popo8]

U all have me thinking maybe i nees to drain it...and fill from scratch.

Can someone confirm if the fill hole is 2much?

Co-Owner/Admin @ LTXtech.com

[1sickta]

I would check that first. Drain out the oil you have in a clean bucket and measure how much you have in it. 2 quarts would be sufficient I would think.

[1sickta]

If your fill hole is higher than the center of the pinion I would say you over filling it.

[casey20000007]

I have the same nipple fitting you have then I have a hose about 3 ft and have a curl in it and anchored to a clip on the bottom of gas tany where heat shield goes, and I have 3 quarts in mine


SMOKE TIRES NOT DRUGS

[popo8]

I have the same nipple fitting you have then I have a hose about 3 ft and have a curl in it and anchored to a clip on the bottom of gas tany where heat shield goes, and I have 3 quarts in mine


SMOKE TIRES NOT DRUGS

Wow... 3 feet of hose.

Co-Owner/Admin @ LTXtech.com

[popo8]

I would check that first. Drain out the oil you have in a clean bucket and measure how much you have in it. 2 quarts would be sufficient I would think.


If your fill hole is higher than the center of the pinion I would say you over filling it.

I appreciate that i will check 2moro

Co-Owner/Admin @ LTXtech.com

[casey20000007]

Lol yeah maybe too much hose but that's a lot of hose for oil to try and get through lol, the manufacture said have enough hose to be able to put at least one loop in


SMOKE TIRES NOT DRUGS

[popo8]

Lol yeah maybe too much hose but that's a lot of hose for oil to try and get through lol, the manufacture said have enough hose to be able to put at least one loop in


SMOKE TIRES NOT DRUGS

Lol... I think it is. i really think the hose was my down fall...

Co-Owner/Admin @ LTXtech.com

[casey20000007]

Did you just have a short piece on it?


SMOKE TIRES NOT DRUGS

[popo8]

Did you just have a short piece on it?


SMOKE TIRES NOT DRUGS

First one was about a foot long and went up...

Then shortened it.


Then went with kne long enough to go up.. Loop and point down...

And finally.... The one i did yest was about half a foot long with filter on the top poi ted straight up

Co-Owner/Admin @ LTXtech.com

[casey20000007]

I'd do about 2 ft with a big loop in it


SMOKE TIRES NOT DRUGS

[popo8]

I'd do about 2 ft with a big loop in it


SMOKE TIRES NOT DRUGS

Idk man... I dont wanna risk cleaning it again... Seems the more restriction i add the more it pressure it builds..and the MORE of a mess it makes.

Co-Owner/Admin @ LTXtech.com

[popo8]

21706

Was to lazy to retype... Lol

Co-Owner/Admin @ LTXtech.com

[popo8]

This is interesting:

Aaron posted this on my fb page...

We had added axle seals since it was leaking on the inside of my passenger side wheel....

21710

[popo8]

For those still helping and following..i asked miss popo WHAT CHANGED to make thisnstart happening. We know it started this may when we drove it to ocmd...

But


Then she reminded me... We added the new adjustable torque arm and we changed the pinion angle just before....

Do u think that could have ANYTHING to do with it.

Co-Owner/Admin @ LTXtech.com

[Dangerous95lt1]

Mine has same style pipe thread with nipple and a foot of hose

Sent from my SCH-I605 using Tapatalk 2

[popo8]

Mine has same style pipe thread with nipple and a foot of hose

Sent from my SCH-I605 using Tapatalk 2

Do you run your hose UP...across.... out... what?

[Dangerous95lt1]

Straight up

Sent from my SCH-I605 using Tapatalk 2

[popo8]

Straight up

Sent from my SCH-I605 using Tapatalk 2

Yeah.. With straight up amd a filter on top... It made a huge mess.

:mad:

Co-Owner/Admin @ LTXtech.com

[Madman337]

Siphon effect. By restricting the vent hole with the brass fitting and adding a hose, you have effectively created a very high pressure zone between your axle and atmostphere. you are going to have higher pressure in the axle than atmostphere, so it's going to want to draw the oil out the hose.

I am thinking this too because I have seen many diffs over the years and the lions share of them have a simple vent and thats about it and it does not seem to have a problem blowing oil out unless there is something making the oil really hot like a bearing going bad or too tight a backlash?
Here is an exploded view of the 9 and it just shows a simple vent for it.
21716

[popo8]

I am thinking this too because I have seen many diffs over the years and the lions share of them have a simple vent and thats about it and it does not seem to have a problem blowing oil out unless there is something making the oil really hot like a bearing going bad or too tight a backlash?
Here is an exploded view of the 9 and it just shows a simple vent for it.
21716

That is a simple piece.


Thanku man.

Co-Owner/Admin @ LTXtech.com

[popo8]

Well before my shower...and bed time... It was bothering me...not knowing...

So i slid under the car...and the spots on the floor were the ones i soaked up already....


I pit my finger on the tip of the fitting and it just got a touch of fluid... But as far as i could see ...everything was dry....


Hopefully this week...ill take it to work...and put it to the test.



Co-Owner/Admin @ LTXtech.com

[Dangerous95lt1]

If not popo I might have another solution for you to try

Picture of dif vent that I can get thru work

Sent from my SCH-I605 using Tapatalk 2

[firebird_1995]

Napa know how!

[Dangerous95lt1]

Yes sir!!!!

Sent from my SCH-I605 using Tapatalk 2

[Paulster2]

If not popo I might have another solution for you to try
http://ltxtech.com/forums/attachment.php?attachmentid=21781&stc=1&thumb=1&d=1373479718
Picture of dif vent that I can get thru work

This would also add a little bling to an otherwise dull 9" ... :D

[popo8]

If not popo I might have another solution for you to try

Picture of dif vent that I can get thru work

Sent from my SCH-I605 using Tapatalk 2

Well...im waiting for the weather to stay nice enough for me to take the car to work..but the forecast refuses to stay dry for the full 8+ hours.

@ Dangerous95lt1 do u know what the threads are on that...

Trying to see if i can spin it right in or if i will have to drill and tap?

Co-Owner/Admin @ LTXtech.com

[popo8]

21822

Last week...half the miles i put on today had it coates in shmutz..

(see pic previously posted)

Today with twice the miles...HARDLY anything....

Co-Owner/Admin @ LTXtech.com

[popo8]

Well... I thought it was getting better after removing the hose...but....after a bit of thrashing and alot of miles today.... My ass is dirty. (lol)


Gonna clean it off again.... was planning on getting it on the lift tuesday, but running out of cars that are up and running right now, so it may have to wait.

(I do need to say, the other day when it made a mess on the rear (with the hose), I blindly added about half a quart to the rear through the vent hole... so MAYBE it really is over full....


21877

[Paulster2]

Just paint the whole rear black and be done with it ...

[popo8]

Just paint the whole rear black and be done with it ...

Lol....

Co-Owner/Admin @ LTXtech.com

[Formula218]

I'd put it back to how it was before, with no tube or fitting and see if it goes back to working without making a mess.

[Madman337]

I am still wondering if you dont have something going away in it so try this, clean it all off then drive the car and when it starts spraying the back of the car feel the diff (all over) and see if its hot because heat will also cause it to spray all over too and if it is hot try to locate where its the hottest and maybe find a problem before it gets too big.

[popo8]

I'd put it back to how it was before, with no tube or fitting and see if it goes back to working without making a mess.

Thats what i did...and it was ok on short trip....

Co-Owner/Admin @ LTXtech.com

[popo8]

I am still wondering if you dont have something going away in it so try this, clean it all off then drive the car and when it starts spraying the back of the car feel the diff (all over) and see if its hot because heat will also cause it to spray all over too and if it is hot try to locate where its the hottest and maybe find a problem before it gets too big.

I can do that.... Prob is im not home when it spits and there is no way for me to get inder the car when it "starts" spitting.

Co-Owner/Admin @ LTXtech.com

[Madman337]

I can do that.... Prob is im not home when it spits and there is no way for me to get inder the car when it "starts" spitting.

Co-Owner/Admin @ LTXtech.com

Take it out for a good hard run and bring it back home and crawl under it, changing its pinion angle could have just made a potential problem show up sooner rather than later.
I hope I am dead wrong and everything is fine with it but I dont think anybody else has said much on it being mechanical so I had to raise the question.

[Formula218]

Thats what i did...and it was ok on short trip....

Co-Owner/Admin @ LTXtech.com

Ohh I thought you took the hose off but left the fitting.

[tleed]

When I put my 12bolt in moser instructed me to use a 15" vent hose straight up & a regular axel vent i think it was a dorman part # 14689 fixed the problem for me

[popo8]

Ohh I thought you took the hose off but left the fitting.

I did... Fitting only. Thats what worked before.

Co-Owner/Admin @ LTXtech.com

[popo8]

When I put my 12bolt in moser instructed me to use a 15" vent hose straight up & a regular axel vent i think it was a dorman part # 14689 fixed the problem for me

Ill save the info to try... But my co cern is...why was it not a problem till i put the hose on it....and now i camt reverse it.

Co-Owner/Admin @ LTXtech.com

[popo8]

Take it out for a good hard run and bring it back home and crawl under it, changing its pinion angle could have just made a potential problem show up sooner rather than later.
I hope I am dead wrong and everything is fine with it but I dont think anybody else has said much on it being mechanical so I had to raise the question.

I appeeciate that...amd im also wondering if filling it with the axel hanging changed the angle and allowed me to overfill without it leaking out...maybe even the new pinion angle changed that.

Co-Owner/Admin @ LTXtech.com

[popo8]

Well today on the way to the car show.. the camaro decided to turn off... not the power, but it just stopped running... I cycled the key, and heard nothing.

I jumped out, swapped the plugs under the hood for the dual fuel pumps.. cycled the key (now running on what was the secondary) an we were of and running.

Made it to the car show.. swapped back and forth and confirmed (or at least I though) one of my pumps were dead. Oh well, all I needed was one to get home.

Soooooooooooooooooooooooooo, 9 pm rolls around, and we head home.. cruise through town, get out on the road, and Pfffftttttt, nothing. Coast to a stop. Think to myself, well maybe I was confused after messing with it after we made it to the show, I re used the the weak pump. Swapped the relays, and Vrooom...

Now I have no idea which is which... but I drive another 100 yards... Pffffft....

SERIOUSLY....???? Could I really be losing BOTH pumps in the same day (I guess anything is possible) Anyways, check the fuses for both of the links, and swap again...VROOOOM...

I limp her home.... A/f for the most part hanging at 15 for the cruise home with some spuratic activity every once in a while.....


So maybe tomorrow... I will throw the fuel pressure guage and check it out between both pumps.... If they both come up weak, should I look into something else, or assume that I really killed both pumps in the same ride.......?

[brandons94lt1]

Man I hate gremlins...(strange problems that make you scratch your head...)

Fuel pumps use the fuel to cool them as well as pumping the fuel...I'm sure you already know this...could something be starving the pumps?? Not likely..but idk..

Perhaps its an electrical issue with the systems powering the fuel pumps?? Or could something be trying to shut down the pumps ???like faulty no oil pressure reading??

I'm grasping at less than straws
..but trying to help ya think through it..

[Fastbird]

I highly doubt both pumps gave up the ghost on you. Something I'd look into is your VATS module. I've seen those crap out with no warning, no light, no nothing. Oh, and no fuel cause the VATS cuts the pump. You'll be driving along and just wham, no fuel.

[dawdaw]

I would second fastbird... but it would be also a good idea, like you previously stated to throw a fuel pressure gauge on the car. At least you can rule in or out if it's the pumps. When I've seen them fail, they usually act intermittently like you described. I doubt it's the pumps, it sounds more like an electrical gremlin

[popo8]

I highly doubt both pumps gave up the ghost on you. Something I'd look into is your VATS module. I've seen those crap out with no warning, no light, no nothing. Oh, and no fuel cause the VATS cuts the pump. You'll be driving along and just wham, no fuel.

vats is tuned out. and no security light

MEMBER @ LTXtech.com

[popo8]

no faulty readings on guages.
Everything reading right in spec.

MEMBER @ LTXtech.com

[popo8]

i can tell u... depending on when it happened... i knew exactly when the car would and would NOT start after messing with the plugs (switching back and forth).

BECAUSE...

one would make no priming sound (sometimes) and the other made a priming sound but clearly weaker (or not normal sounding) than usual.

MEMBER @ LTXtech.com

[JCzNova]

i can tell u... depending on when it happened... i knew exactly when the car would and would NOT start after messing with the plugs (switching back and forth).

BECAUSE...

one would make no priming sound (sometimes) and the other made a priming sound but clearly weaker (or not normal sounding) than usual.

MEMBER @ LTXtech.com

Sounds electrical to me. Are you dual in tank?

Possible chaffed wire somewhere, grounding out intermittently.
Relay contacts going bad.
Loose ground or power, bumpy ride at all?

[popo8]

Im wondering how the pickup is in the tank for the duals... and if something is in there that is floating into it...till it burnt it up or just starves it.

is this possible.

In my mind thatbwould explain why switchig would allow that item to unblock then re block again....




MEMBER @ LTXtech.com

[Ryan Stout]

Regulator maybe?

Sent from my SCH-I535 using Tapatalk 4 Beta

[popo8]

Regulator maybe?

Sent from my SCH-I535 using Tapatalk 4 Beta

What are ur thoughts with the reg tho? Just failing? If so...why is switching from.pump to pump getting me running again?

MEMBER @ LTXtech.com

[Still2slow]

Are the pumps in a bucket?

[Ryan Stout]

Could have somehow been holding shut and depressurizing the system and then repressurizing it freed it up for a sec. Long shot. I'd think with the socks on the pump that unless its a shop rag or somethin it wouldn't clog it bad enough to die. I've been wrong many times tho.

Sent from my SCH-I535 using Tapatalk 4 Beta

[popo8]

Are the pumps in a bucket?

i was not there for the install. it was added when my car was at the last tunners for a few months being set up.

MEMBER @ LTXtech.com

[popo8]

Could have somehow been holding shut and depressurizing the system and then repressurizing it freed it up for a sec. Long shot. I'd think with the socks on the pump that unless its a shop rag or somethin it wouldn't clog it bad enough to die. I've been wrong many times tho.

Sent from my SCH-I535 using Tapatalk 4 Beta

lol... .willing to consider anything.


OF COURSE...i loaned out my fuel pressure guage and I cant remember to whom....

Looks Like Ill be buying a new one.

At thay point Ill start with fp witg each pump as the primary....and ill run it for a while in case they are failing from heat or blockage.

.I did just go out and cycled the car with EACH pump as the primary
and they both primed and started.


I CAN TELL U THIS.... the priming did not sound normal. Not the same Hummmmmmmmmmm it does.


it was an "unhealthy" priming sound.


MEMBER @ LTXtech.com

[Camaro350z2897]

fuel filter? long shot maybe its cloggin up and each pump pushes just enough through to drive again and one holds that pressure so it thinks it is primed? i have no idea, sounds crazy and i myself hate electrical

[Injuneer]

Check for codes - outside shot, but worth checking. Low res fault on the Opti cam position sensor shuts down the fuel system, but does not turn on the SES light. Heat soak in the optical module?

[popo8]

fuel filter? long shot maybe its cloggin up and each pump pushes just enough through to drive again and one holds that pressure so it thinks it is primed? i have no idea, sounds crazy and i myself hate electrical

thought about it...and easy enough to check..but does not have alot of miles on it.

MEMBER @ LTXtech.com

[popo8]

Check for codes - outside shot, but worth checking. Low res fault on the Opti cam position sensor shuts down the fuel system, but does not turn on the SES light. Heat soak in the optical module?

ill give it a try...let me ask u. if my car is a 96...converted to obd1...

when i plug it in...do i need to do anything different than i used to?


another thing is...any ideas on why the fuel pumps just dont sound healthy?
MEMBER @ LTXtech.com

[Injuneer]

Do you still have the 16-pin OBD-II connector? In any case, you need to connect the scanner data wire to the terminal with the tan data wire from the PCM (pin 9 in a 95) and the scanner ground wire to the ground pin (pin 5 in a 95). Shoebox's diagram shows how:

http://shbox.com/1/xraycable.jpg

If they left the data wire where it was when the system was OBD-II, I'm pretty sure its also on pin 9.

[popo8]

only thing that is changed is the computer.

MEMBER @ LTXtech.com

[popo8]

The only thing that is changed is the computer

and i do have the cable that was used to tune the obd1 set up....If that tuned it...wouldnt that read it?



MEMBER @ LTXtech.com



MEMBER @ LTXtech.com

[Injuneer]

Should be the correct cable.

[popo8]

Should be the correct cable.

cool...its just the 95 cable if im bot mistaken..OBD1 with OBD 2 plug.

Now...its 700+ miles away from here. lol.

wonder if i can use the emissions machine at the shop to check it.

MEMBER @ LTXtech.com

[Still2slow]

Do you know if they are wired with a Hotwire kit? I'm not very familiar with dual in-tank setups, do they run simultaneously or does the second turn on in boost via a map sensor?

[popo8]

Do you know if they are wired with a Hotwire kit? I'm not very familiar with dual in-tank setups, do they run simultaneously or does the second turn on in boost via a map sensor?

no..we removed my hotwire kit when we pulled the 340 pump that was not cutting it.

This is the dual wahlboro 255 kit from LONNIES with the second pump triggered by a hobbs switch.

MEMBER @ LTXtech.com

[popo8]

http://www.lonniesperformance.com/fuelsystems.htm

I believe its the one listed as a 3rd gen part for $729.00

http://www.lonniesperformance.com/fbodyfuelsystems.htm

[Still2slow]

Neither the 3rd gen or LT1 kits mention a bucket which I could see getting clogged with trash easier than the pump filter so I don't think that's your problem, unless someone is shoving stuff down your filler neck. As others have said I think something is going on with the wiring. Hopefully you have the "trap door" mod and can start diagnostics with a multimeter.

[popo8]

Neither the 3rd gen or LT1 kits mention a bucket which I could see getting clogged with trash easier than the pump filter so I don't think that's your problem, unless someone is shoving stuff down your filler neck. As others have said I think something is going on with the wiring. Hopefully you have the "trap door" mod and can start diagnostics with a multimeter.



I didnt see the LT1 kit listed.... but if you saw it.. thats the one.
and
IDK what this bucket thing your are talking about is.. but yes.. I have the trap door.

[Chris]

From the factory the fuel pump sirs inside a plastic bucket like so 2254222543

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[popo8]

From the factory the fuel pump sirs inside a plastic bucket like so 2254222543

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2


Ohhh, ok, I didnt know that is what it is called. Wouldnt the bucket make it more protected from crap?

[Chris]

Yes sir

Sent from my SAMSUNG-SGH-I747 using Tapatalk 2

[popo8]

Chris

then im confused , cause he wrote


Neither the 3rd gen or LT1 kits mention a bucket which I could see getting clogged with trash easier than the pump filter so I don't think that's your problem,...

[Still2slow]

It's been a long time since I've done a fuel pump so I might be completely wrong, but I don't recall the bucket pickup being very large. I do know the fuel pump filter has a lot of surface area so I concluded that blockage is less likely without a bucket, plus the fact that the pump sounds different could have been the bucket going dry, but it doesn't seem that's the case now. Again I could be completely wrong about the bucket. I threw mine in the trash when I did a walbro about 10 years ago lol.

[popo8]

http://img.tapatalk.com/d/13/08/05/6yduha2e.jpg


for those not familiar...the set up is very nice. both weather packed fuesable links are mounted to the car...(under my knuckles)

In my hand are the plugs that are to pump one and pump two.

unsure which is primary and which is not...the one with the black loop on the end has a removable.plug which seems to justbcomplete a circuit...the other is acually a connectio between the harness and the fuesable links



messing with it now...going back and forth...one pump is clearly performing better than the other.

when set up.one way.... she stumbles and goes lean when i try to rev.... the other way is much snappier....

just messing around till i get a fp guage







MEMBER @ LTXtech.com

[Chris]

I would think the bucket would allow the sediment thats in the tank help preventing it to get to the filters.

[popo8]

It's been a long time since I've done a fuel pump so I might be completely wrong, but I don't recall the bucket pickup being very large. I do know the fuel pump filter has a lot of surface area so I concluded that blockage is less likely without a bucket, plus the fact that the pump sounds different could have been the bucket going dry, but it doesn't seem that's the case now. Again I could be completely wrong about the bucket. I threw mine in the trash when I did a walbro about 10 years ago lol.

ok... i just got confused. I appreciate u and everyone else responding..texting...fb ing to help.me out.


i spent a little while outside switching one way to the other priming ...starting...idling...and she is not skipping a beat other than one pump.sounding worse than the other on prime.... and SOMETIMES sputtering when revving.

let it idle for a WHILE both ways....tried messing with 2plugs and fuse links...didnt skip.a beat....

I miss my fp guage...lol


MEMBER @ LTXtech.com

[Still2slow]

I would think the bucket would allow the sediment thats in the tank help preventing it to get to the filters.

It does reduce sediment but I was addressing popo's theory of something blocking one pump, then moving to the other when he switched the wiring.

[Ryan Stout]

Bad check valve in secondary pump maybe?

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[popo8]

Well since Im fighting a fueling issue.. I figure that I should update this issue.

Either its fixed...or its about to grenade.... lol


The rear has stopped spitting.... but I did nothing other than run the nipple fitting OPEN.


Soooooo, its either gone dry...or emptied itself from being over full...

Good news is...its not whining, and Im assuming the bearings would be complaining if it was low or dry....

[popo8]

Bad check valve in secondary pump maybe?

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Would I be able to see that failure through fuel pressure?

[Ryan Stout]

Maybe. Mine went out and it backfed therough the secondary pump. Main pump kept up at idle but not when it started to need fuel. I bought an inline AN one, viola, fixed.

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[popo8]

Maybe. Mine went out and it backfed therough the secondary pump. Main pump kept up at idle but not when it started to need fuel. I bought an inline AN one, viola, fixed.

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Thats very interesting... My car will idle fine the entire time... it was driving that was an issue.
So one pump taking a shyt can effect the other one????

Can you explain "backfed through the secondary" to me?

[Ryan Stout]

Only if the check valve went bad.

You have 2 pumps, connected by a Y feeding the engine. One runs only during boost (I assume) If the secondary pump's check valve fails, the main pump will pump fuel through the secondary pump backwards because that's easier than through the regulator.

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[Ryan Stout]

That's what my symptoms and fix was tho. Mines on a hobbs switch set at 4psi.

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[Chris]

Its basically dumping the fuel back in the tank through the second pump is what your saying right

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[popo8]

Idk what my hobbs is set up to work at.. but I am set up just like what you described above Ryan....

WOuld the symptoms include me trying to roll into it, and just getting breaking up, or lean condition when under load?

[Ryan Stout]

Yea. Same mine did. As soon as I swapped em it was fine until I got a valve.

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[Ryan Stout]

Yea that's what I mean Chris

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[popo8]

Yea. Same mine did. As soon as I swapped em it was fine until I got a valve.

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until you got a valve???

[Ryan Stout]

Mine are external and I just stuck a check valve right after my secondary pump.
Yours would probably mean a new pump is in order.


I have this wall between my brain and my phone lol

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[popo8]

Mine are external and I just stuck a check valve right after my secondary pump.
Yours would probably mean a new pump is in order.


I have this wall between my brain and my phone lol

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I appreciate you taking the time to explain it.

I really need my fuel pressure guage... then I can confirm one is dying (hopefully)...figure out which one it is....and replace it.

Hell, maybe I will jsut buy two 340s to replace the two 255s.....

[Ryan Stout]

No big. Yea I'd stick a gauge on it for sure.

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[JCzNova]

If one is bad and back feeding.... Have you only switched them as above, or have you left either totally unplugged to see if it runs?

[popo8]

If one is bad and back feeding.... Have you only switched them as above, or have you left either totally unplugged to see if it runs?

I can not leave one totally off from UP top... if I get under the car I can pull one relay at a time, but the plugs I show you up top...need to both be plugged in to complete the power circuit.

[Chris]

Wonder if you have a bad ground since it idles fine the get into some powersecond kicks in voltage drops on both bye bye pressure/flow

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[popo8]

Wonder if you have a bad ground since it idles fine the get into some powersecond kicks in voltage drops on both bye bye pressure/flow

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JCZ and I were texting about that as well. Its obviously a posibility. But the only grounds I remember seeing were near the relays under the car... Its been a while since I was under the car...

BUT on the same thought.. why does only ONE sound sickly?

[Chris]

Sucks up more sediment that the other, possible dumping in the other pump cause of a check valve. Race car?

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[popo8]

Sucks up more sediment that the other, possible dumping in the other pump cause of a check valve. Race car?

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are u asking me something..or telling me something?

MEMBER @ LTXtech.com

[Chris]

Niether theory on pump noise

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[popo8]

Niether theory on pump noise

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ohhhh..ok. gotcha.

MEMBER @ LTXtech.com

[gregpenechar]

If a check valve was bad, I think the pump would prime a little longer than normal. Low voltage or current would cause them to sound different. Once you get your fuel pressure gauge back, just check to see if pressure drops when the pump is not energized. If it holds steady, the check valves are fine. I would backprobe the pump connections and make sure you're getting correct voltage, too.

[Chris]

Generally in Fbodies they are ran as a Y but you wont know until you take them out of the tank or ask the installer

[popo8]

right... i was just seeing if any one was familiae with the lonnies perf dual set up

MEMBER @ LTXtech.com

[popo8]

is the check valve part of the pump... orrrrrrrr seperate?

MEMBER @ LTXtech.com

[Chris]

Generally they are internal to the pump

[popo8]

Generally they are internal to the pump

so a bad check valve means bad pump my default?

MEMBER @ LTXtech.com

[Chris]

You technically could pump in an external check valve but if they are coming out of the tank anyways, yeah its getting a new pump

[popo8]

You technically could pump in an external check valve but if they are coming out of the tank anyways, yeah its getting a new pump

Yeah... if the pumps are not 100% im just replacing it...and honestly.. if i replace one...i replace BOTH.

MEMBER @ LTXtech.com

[Still2slow]

Sometimes if a check valve is bad you can hear the pressure bleeding off back into the tank after the system primes.

[popo8]

Sometimes if a check valve is bad you can hear the pressure bleeding off back into the tank after the system primes.

hmmmm what would that sound like... ?



MEMBER @ LTXtech.com

[Still2slow]

A hissing sound coming from the tank that starts immediately after the pump turns off. This was an indicator that HellTeeOne needed a new pump, which I told him before he made the dyno appointment lol

[JPack]

Is the wiring all new back to the pumps? What typically kills pumps is low voltage. If the wiring is too small the voltage will drop especially if the pump is under a demand. My dual set up has its own power to each pump and not a single feed to both. I do not use any of the stock wiring.

[popo8]

A hissing sound coming from the tank that starts immediately after the pump turns off. This was an indicator that HellTeeOne needed a new pump, which I told him before he made the dyno appointment lol

its weird u say that... cause recently... ive been hearing a hiss coming from the tank after i would pull in and park in the garage.

I thought maybe it was jist pressure in the tank from the hotter weather... lol..idk

MEMBER @ LTXtech.com

[popo8]

Is the wiring all new back to the pumps? What typically kills pumps is low voltage. If the wiring is too small the voltage will drop especially if the pump is under a demand. My dual set up has its own power to each pump and not a single feed to both. I do not use any of the stock wiring.

from what i inspected...its all new

.right down to a new terminal on my battery where the power is comig from.

MEMBER @ LTXtech.com

[firebird_1995]

43.5

[popo8]

43.5

Thanku...idk why I could not recall that.

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[popo8]

got the FP guage....

Idk if I'm hoping it is or isn't the pump.

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[popo8]

22636

MEMBER @ LTXtech.com

[Fastbird]

Aaaaannnnnnnnnndddddddddd?

[popo8]

Have not done anything yet...

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[Sahara54]

Trying to remember (before I head out) is this the only Schrader valve on a 96?


:thumbsup: yep..

[Chris]

On the 93s they were on the side like your talking

[popo8]

22677

Getting there slowly... Lol

MEMBER @ LTXtech.com

[popo8]

22678

Idle pump one

MEMBER @ LTXtech.com

[JCzNova]

Patiently clicking refresh.

[popo8]

22679

Idle pump 2

This one primed much faster... But i assume cause even tho i bled off pressure at the rail...the line still had fuel in it from pump one.

MEMBER @ LTXtech.com

[popo8]

Left for a while... Came back. Tried to start it on pump 2 which it was last run on ...and....



https://www.youtube.com/watch?v=yPUgcmkjXdw&feature=youtube_gdata_player

MEMBER @ LTXtech.com

[popo8]

Swapped back to pump 1 and ....


22683


Fired right up...



MEMBER @ LTXtech.com

[popo8]

Switched to pump one... was revving it... then....


https://www.youtube.com/watch?v=BIL5i2cLi3w&feature=youtube_gdata_player

MEMBER @ LTXtech.com

[popo8]

After last one died... I could not get it re started...switched back.. Had a hard time starting it.. But theb it started... Now im idling on pump 2...idk... Lol

MEMBER @ LTXtech.com

[Sahara54]

Did you ever check the voltage at the pump? I may have missed that...

Also, What pumps does Lonnie's use on their setups? Walbro? Aeromotive?

[popo8]

Did you ever check the voltage at the pump? I may have missed that...

Not yet... I cant get under the car here at the house.

MEMBER @ LTXtech.com

[popo8]

Now... If it was a check valve (right now just assuming there are only the factory style check valves)
issue...would i be able to hold fp after the car is shut off or would it drop instantly?

MEMBER @ LTXtech.com

[popo8]

Its hot... Im dun for the day..

Here is a review...

The pump that I designate one, appears to run strong and sound strong until I try to boost, then it is hit or miss. The pump that I designated number 2 does not sound strong and it's hit or miss when I try to rev the car.

Both pumps will prime to 40 giver take, then bleed off to about 30 to 35 if I do not start the car.

Final vid.... Pump one... Workin fine with pump 2 helping.

MEMBER @ LTXtech.com

[Chopstix]

how are they wired....is there a relay/boost detection to turn on/off pumps....getting in on this late so did not read the whole thread

[Ryan Stout]

Wait. Just remembered. Running out of fuel kills Walbros from what I've heard. Run out anytime recently?

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[popo8]

how are they wired....is there a relay/boost detection to turn on/off pumps....getting in on this late so did not read the whole thread

As for the intanks''' I can't tell u how they are wired.... But I can tell u...running from the tank are two relays under the car. Idk if they are powered together... But I assume they are because the plugs I switch umderhood must both be plugged in for it to work....

Now for the secondary pump..there is a Hobbs switch to kick on the secondary when i,m getting boost.

Just an LTXtech addict

[SSlowBoat]

Is there any possibility that the signal wire from the computer is loose or weak, and when you rev the relays are chattering causing it to lose pressure due to the pumps shutting off and on?

[popo8]

Is there any possibility that the signal wire from the computer is loose or weak, and when you rev the relays are chattering causing it to lose pressure due to the pumps shutting off and on?

I guess any thing is a possibility... But what is changing when I swap pumps or wait a bit to refire...



Just an LTXtech addict

[popo8]

Wait. Just remembered. Running out of fuel kills Walbros from what I've heard. Run out anytime recently?

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Not that I noticed...lol...

But I also remember call911 posted up a while ago about knock off walbros that were having short lives.

Just an LTXtech addict