Coil is burnt up...AGAIN!!!----TBI - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**texassquarebodies** · 03-23-2012, 07:17 PM

I have a 1987 3/4, 350 mtr, chevy truck and my coil keeps burning out. Its all burned on top and has left me stranded twice. Any ideas?? It will spin over. Im thinking module or distubutor related??? Help!!

**old Rusty C10** · 03-23-2012, 07:31 PM

years back i had a similar issue and we ended up replacing the whole distributor.. there was an issue that the shaft had too much play in it or something.. its been a while and the old mempry isnt as good as it used to be

rfmaster · 03-23-2012, 08:11 PM

Quote:

Originally Posted by texassquarebodies

I have a 1987 3/4, 350 mtr, chevy truck and my coil keeps burning out. Its all burned on top and has left me stranded twice. Any ideas?? It will spin over. Im thinking module or distubutor related??? Help!!

Check the tachometer test lead (if you have one) and make sure it is not grounding inadvertently.

tazman87 · 03-23-2012, 09:14 PM

my old man had the same problem two weeks ago....his case....stock dist, MSD cap MSD coil....= bad combo

**texassquarebodies** · 03-23-2012, 10:25 PM

I will probably just change the whole thing. I have a few. I have had to pull it home the last two times I drove it, both with a trailer behind it.

rs72z · 03-23-2012, 10:36 PM

Tony,
Have you replaced the plug wires or checked resistance?

esbstuff · 03-23-2012, 10:40 PM

May check for ground on coil... make sure all your mounting points are clean, so they will ground well. Also make sure the coil is tight in its holder.

**texassquarebodies** · 03-23-2012, 11:24 PM

The plug wires are newish and i dont know how to check the resistance

andrewmp6 · 03-24-2012, 12:06 AM

How do you have the coil mounted?If its on a angle and one of the poles on it is straight up a air bubble can forum there and cause it to burn out.

grayharville · 03-24-2012, 04:21 AM

Try hitting it with a hammer.
Posted via Mobile Device

bayou boy · 03-24-2012, 04:36 AM

yeah Hammer works for me

**texassquarebodies** · 03-27-2012, 01:41 AM

Well, My 72 yo. Dad came down to the shop at 10;30 pm, which is very unusual. I decided to replace the whole distibutor and the coil with one I knew was good after Autozone said a module would be $42. I already had a new cap and rotor sittn in my shop.

I coulnd't get everything lined up right. He did has dad magic and got it running again!!! Made my day. We had it goin in about 45 minutes. Gotta get a timing light now. Starts and runs great. Just gotta do a test drive.

thanks guys.....except gray harville.

grayharville · 03-27-2012, 12:28 PM

You're welcome.
Posted via Mobile Device

ramz · 03-27-2012, 01:45 PM

under the coil is a part (sorry cant remember off hand) that has a spring on it and it sits under the coil. I forgot that once and it burnt up my coil.

03-23-2012, 07:17 PM	#1
texassquarebodies Truck Nut Join Date: Jun 2007 Location: Wills Point, Texas Posts: 407	Coil is burnt up...AGAIN!!!----TBI I have a 1987 3/4, 350 mtr, chevy truck and my coil keeps burning out. Its all burned on top and has left me stranded twice. Any ideas?? It will spin over. Im thinking module or distubutor related??? Help!! __________________ Tony Kee Texas Square Bodies

03-23-2012, 07:31 PM	#2
old Rusty C10 Robert Olson Transport Join Date: Oct 2002 Location: recent transplant to NC USA Posts: 20,299	Re: Coil is burnt up...AGAIN!!!----TBI years back i had a similar issue and we ended up replacing the whole distributor.. there was an issue that the shaft had too much play in it or something.. its been a while and the old mempry isnt as good as it used to be __________________ Bob 1951 International running on a squarebody chassis "If a man's worth is judged by the people he associates himself with, then i am the richest man in the world knowing some of the fine people of this board" http://67-72chevytrucks.com/vboard/a...t.php?f=25&a=9 (you can review the site rules here!) PM Me for your vehicle/parts hauling needs in the North East US or see my Facebook page Robert Olson Transport Live each day to the fullest.. you never know when fate is going to pull the rug out from under you... I hate cancer!!

03-23-2012, 09:14 PM	#4
tazman87 Registered User Join Date: Aug 2010 Location: New Hamburg, Ontario Posts: 220	Re: Coil is burnt up...AGAIN!!!----TBI my old man had the same problem two weeks ago....his case....stock dist, MSD cap MSD coil....= bad combo

03-23-2012, 10:25 PM	#5
texassquarebodies Truck Nut Join Date: Jun 2007 Location: Wills Point, Texas Posts: 407	Re: Coil is burnt up...AGAIN!!!----TBI I will probably just change the whole thing. I have a few. I have had to pull it home the last two times I drove it, both with a trailer behind it. __________________ Tony Kee Texas Square Bodies

03-23-2012, 10:36 PM	#6
rs72z Registered User Join Date: Oct 2011 Location: Emory TX Posts: 900	Re: Coil is burnt up...AGAIN!!!----TBI Tony, Have you replaced the plug wires or checked resistance? __________________ ___________________ 78 ccsb dually 5.3 4l60e http://67-72chevytrucks.com/vboard/s...d.php?t=491551

03-23-2012, 10:40 PM	#7
esbstuff Registered User Join Date: Jun 2011 Location: St Robert, Mo Posts: 730	Re: Coil is burnt up...AGAIN!!!----TBI May check for ground on coil... make sure all your mounting points are clean, so they will ground well. Also make sure the coil is tight in its holder.

03-23-2012, 11:24 PM	#8
texassquarebodies Truck Nut Join Date: Jun 2007 Location: Wills Point, Texas Posts: 407	Re: Coil is burnt up...AGAIN!!!----TBI The plug wires are newish and i dont know how to check the resistance __________________ Tony Kee Texas Square Bodies

03-24-2012, 12:06 AM	#9
andrewmp6 Registered User Join Date: Jan 2009 Location: Louisville,Ky Posts: 5,811	Re: Coil is burnt up...AGAIN!!!----TBI How do you have the coil mounted?If its on a angle and one of the poles on it is straight up a air bubble can forum there and cause it to burn out.

03-24-2012, 04:21 AM	#10
grayharville ^^who I am^^ what I say> Join Date: Jun 2009 Location: Murchison, Tx Posts: 992	Re: Coil is burnt up...AGAIN!!!----TBI Try hitting it with a hammer. Posted via Mobile Device __________________ 70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares

03-24-2012, 04:36 AM	#11
bayou boy Registered User Join Date: Oct 2010 Location: Frankston Tx Posts: 151	Re: Coil is burnt up...AGAIN!!!----TBI yeah Hammer works for me __________________ all i know is that its going to be orange

03-27-2012, 01:41 AM	#12
texassquarebodies Truck Nut Join Date: Jun 2007 Location: Wills Point, Texas Posts: 407	Re: Coil is burnt up...AGAIN!!!----TBI Well, My 72 yo. Dad came down to the shop at 10;30 pm, which is very unusual. I decided to replace the whole distibutor and the coil with one I knew was good after Autozone said a module would be $42. I already had a new cap and rotor sittn in my shop. I coulnd't get everything lined up right. He did has dad magic and got it running again!!! Made my day. We had it goin in about 45 minutes. Gotta get a timing light now. Starts and runs great. Just gotta do a test drive. thanks guys.....except gray harville. __________________ Tony Kee Texas Square Bodies Last edited by texassquarebodies; 03-27-2012 at 01:43 AM. Reason: Gray.....I got a big block chevy

03-27-2012, 12:28 PM	#13
grayharville ^^who I am^^ what I say> Join Date: Jun 2009 Location: Murchison, Tx Posts: 992	Re: Coil is burnt up...AGAIN!!!----TBI You're welcome. Posted via Mobile Device __________________ 70 chevy LWB 350/TH350 Barn find (AKA the 70) http://www.67-72chevytrucks.com/vboa...d.php?t=406364 East Tx Squares

03-27-2012, 01:45 PM	#14
ramz Registered User Join Date: Jul 2011 Location: Dallas, TX Posts: 205	Re: Coil is burnt up...AGAIN!!!----TBI under the coil is a part (sorry cant remember off hand) that has a spring on it and it sits under the coil. I forgot that once and it burnt up my coil.



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.