Dead Coil?? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

tcb-1 · 11-17-2008, 10:04 PM

I think I killed my coil. yesterday I "attempted" to install my factory tach cluster, but found that the tach was grounding out on the mounting cup. (the tach harness runs to the "ignition unfused" and the ground runs to the coil negative post)

question. can you kill a coil when grounded out???

by the way, I'm running the good old point ignition system.....

kyull67 · 11-17-2008, 11:32 PM

I don't know but ttt for you.

*ksjh1316* · 11-18-2008, 12:08 AM

Don't know either I know on my MG I had the coil go out for some of the stupidest reasons though never had much luck with old style coils. At least heres another TTT for ya

Sinister · 11-18-2008, 12:39 AM

Sounds like a good time to upgrade to an HEI. TTT

**mr48chev** · 11-18-2008, 01:32 AM

You shouldn't have hurt the coil as it is actually grounded every time the points close. Unless it overheated to the point that it was damaged.
A lot of manuals have instructions on how to test a coil with an ohm meter.
I have an ancient coil tester that actually works quite well to test the point style coils an is quite simple. You might find a shop that has something similar that they can test the coil with.

11-17-2008, 10:04 PM	#1
tcb-1 Nothing to see here..... Join Date: Jun 2007 Location: Shawnee, KS Posts: 4,625	Dead Coil?? I think I killed my coil. yesterday I "attempted" to install my factory tach cluster, but found that the tach was grounding out on the mounting cup. (the tach harness runs to the "ignition unfused" and the ground runs to the coil negative post) question. can you kill a coil when grounded out??? by the way, I'm running the good old point ignition system..... __________________ Doug THANK YOU to our American Soldiers & Veterans - POW MIA "You will NEVER be forgotten". The democracy will cease to exist when you take away from those who are willing to work and give to those who would not. Thomas Jefferson Last edited by tcb-1; 11-17-2008 at 10:21 PM.

11-17-2008, 11:32 PM	#2
kyull67 Registered User Join Date: Nov 2006 Location: Springfield/Kansas City Posts: 1,842	Re: Dead Coil?? I don't know but ttt for you. __________________ The first '67 The current '67 '63 Biscayne

11-18-2008, 12:08 AM	#3
ksjh1316 Account Suspended Join Date: Jul 2007 Location: Wichita KS Posts: 1,599	Re: Dead Coil?? Don't know either I know on my MG I had the coil go out for some of the stupidest reasons though never had much luck with old style coils. At least heres another TTT for ya

11-18-2008, 12:39 AM	#4
Sinister Between Trucks... Join Date: Mar 2002 Location: Los Angeles, CA. Posts: 3,830	Re: Dead Coil?? Sounds like a good time to upgrade to an HEI. TTT __________________ Beat it to fit, Paint it to match... Last edited by Sinister; 11-18-2008 at 12:39 AM.

11-18-2008, 01:32 AM	#5
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,641	Re: Dead Coil?? You shouldn't have hurt the coil as it is actually grounded every time the points close. Unless it overheated to the point that it was damaged. A lot of manuals have instructions on how to test a coil with an ohm meter. I have an ancient coil tester that actually works quite well to test the point style coils an is quite simple. You might find a shop that has something similar that they can test the coil with.



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