- Navigation
Results 1 to 3 of 3
Thread: How to test an optispark cap
-
08-25-2016, 06:15 PM #1InActive Member
- Status
- Offline
- Join Date
- Nov 2013
- Vehicle
- 1997 K1500, SS/SB
- Location
- Kansas
- Posts
- 199
How to test an optispark cap
Howdy y"all, I am getting ready to install a "different" Opti-no-spark in my 95 Z28, since it is a used one I thought ( as an electronic tech) I have access to the tools to check this dog out. I first completely disassembled and cleaned the Opti, including the sensor. (I know there is no set system to clean the sensor, but I tried my best. "SAFE LITE AUTO GLASS CLEANER" Then I reassembled the Opti and tested the Optics - easy test, plug it into the system, under hood, turned the key to on, spin the opti shaft, and listened to the injectors fire. All is good there!! Then I used a MEGGER at workto test for arcing, the ACCEL cap Is good to go, no traces of arcing, but the Duralast from Oreilly has 6 out of 8 arcing internaly, and it "was running" so I was told???? I guess that tells how much you can trust people.
here is a cheap MEGGER can't speak to the quality http://www.ebay.com/itm/Digital-Insu...QAAOSwnOJWFI8u
this is what I used http://megger.com/eu/products/Produc...22&Description not a cheap unit, but I don't own it so it cool
Anyonethat works on these Opti systems needs one of these, I just found a bad cap with out the hassle of installing it.
[URL="http://[URL=http://s578.photobucket.com/user/lloydmace59/media/Mobile%20Uploads/IMG_20160825_175255785_HDR_zpscv10aamv.jpg.html][IMG"]http://[IMG]
that is 34.8 meg ohms at 1000vdc, and the coil puts out 20,000vdc, that is basically a dead short to 20,ooovdcLast edited by Tinbender59; 08-25-2016 at 06:35 PM.
-
08-25-2016, 09:55 PM #2LTX Regular
- Status
- Offline
- Join Date
- Aug 2013
- Name
- Gary
- Vehicle
- 1998 Trans Am
- Location
- Florida
- Posts
- 241
As an EE, I would say that a megger is ok for some leakage tests, but I doubt it would be good enough to fully test for the kind of arcing that can occur inside the cap. For that you would need a Hipot test unit with at least 20KV output. And those aren't cheap.
http://www.ebay.com/itm/New-220V-AC1...EAAOSwnH1Wa6qALast edited by GaryDoug; 08-25-2016 at 09:58 PM.
1998 Trans Am - LS1/A4 - all stock and almost all original - one owner - driven daily.
Author of Scan9495, free pc apps 93-95 LT1,94/95 L32: http://ltxtech.com/forums/showthread...light=scan9495
-
The Following 2 Users Say Thank You to GaryDoug For This Post:
-
08-25-2016, 11:49 PM #3InActive Member
- Status
- Offline
- Join Date
- Nov 2013
- Vehicle
- 1997 K1500, SS/SB
- Location
- Kansas
- Posts
- 199
NICE!! tester!! you are correct if it were a new cap I suppose?? but both of mine are used and the one has carbon tracks I'm guessing??? If you have a miss, this will tell you if it is the cap - to some degree
Bookmarks