coils keeps dieing

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Oct 9, 2003 | 03:57 PM

85redvette

Thread Starter

Cruising

Joined: Feb 2003

Posts: 14

Likes: 0

From: biloxi ms

coils keeps dieing

can anyone help me with this problem? I have replaced my coil twice now and it has died again after a couple months of use. what could be causing this?

Oct 9, 2003 | 04:43 PM

NUckINg FuTS

Melting Slicks

Joined: Oct 2000

Posts: 2,019

Likes: 2

From: Na

Re: coils keeps dieing (85redvette)

Are you using an aftermaket coil? Try switching back to the stock one.

Oct 9, 2003 | 04:50 PM

scorp508

Team Owner

Joined: Mar 2000

Posts: 83,383

Likes: 87

From: Boston, MA

I had this problem before using a hypertech coil (the big gray one) and a MSD box.

I had 2 problems...

1) The coil was designed for switched 12v style and not capacitor discharge. So... replacing it with an MSD HEI coil designed for capacitor discharge fixed that.

2) The stock HEI bushing in the dist. cap is high resistance. It built up extra heat and fried the coil. Replaced that with an MSD low resistance bushing and all is good again.

Oct 9, 2003 | 04:51 PM

85redvette

Thread Starter

Cruising

Joined: Feb 2003

Posts: 14

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From: biloxi ms

Re: coils keeps dieing (85redvette)

i have used stock replacements from advance auto, the one I have now is the second replacement to fail.

Oct 10, 2003 | 12:36 AM

jutammel

Instructor

Joined: Aug 2001

Posts: 217

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From: Finland

Re: coils keeps dieing (85redvette)

What symptoms it caused when failing?? I might have the same problem.

Oct 10, 2003 | 11:54 AM

jfb

Team Owner

Joined: Mar 2001

Posts: 54,124

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From: Cincinnati, Oh USA

Re: coils keeps dieing (85redvette)

Check all your plug wires with an ohmeter, they should measure about 5000 ohms per foot. Any wires that are open circuit can cause the coil to spark internally and destroy itself by making an internal carbon path.