If the tach terminal goes to ground it will take out the module. Check the wiring for any frayed areas that could ground out that circuit.
Keeps burning up modules....why?
Hey guys...
Long time no post. My '72 was rear-ended on I-5 November 20, 2008. It's been in and out of the shop since then for repairs...it's been a LONGGGG ugly road!
...and no, I still don't have it back.
In the mean time, I threw a motor in the old pickup so I have something to drive. I have a problem, though! I've burned up three ignition modules (HEI) in the last 30 miles!!!
The first HEI distributor was a new pro-comp! JUNK!
I figured that was the problem, so after the first module burnt out I installed a NEW Accel "performance replacement" distributor along with the Accel performance coil and module...that lasted 30 mintes.
Module #3 lasted 25 miles and an hour of idling and tuning.
YES, I remembered the special grease on the module--this isn't my first rodeo!
The coil is getting a full 12 volts, even while cranking.
When the motor runs, it purrs like a kitten (GM goodwrench crate350 with 3,500miles on it).
I'm wondering if this is a grounding issue...???
I have a ground strap (1/4" wide) and a #4gauge wire grounding the motor to the frame, and several opthers from body to frame...#4 ga to the negative terminal on the battery.
Is this enough?
And ideas? Advice? Knowledge? Wisdom? Stabs in the dark? Anything?
I was broke before the accident, now I'm even more broke...and broken down!!!...and I can't afford to keep buying modules! HELP!!!
Long time no post. My '72 was rear-ended on I-5 November 20, 2008. It's been in and out of the shop since then for repairs...it's been a LONGGGG ugly road!
...and no, I still don't have it back.
In the mean time, I threw a motor in the old pickup so I have something to drive. I have a problem, though! I've burned up three ignition modules (HEI) in the last 30 miles!!!
The first HEI distributor was a new pro-comp! JUNK!
I figured that was the problem, so after the first module burnt out I installed a NEW Accel "performance replacement" distributor along with the Accel performance coil and module...that lasted 30 mintes.
Module #3 lasted 25 miles and an hour of idling and tuning.
YES, I remembered the special grease on the module--this isn't my first rodeo!
The coil is getting a full 12 volts, even while cranking.
When the motor runs, it purrs like a kitten (GM goodwrench crate350 with 3,500miles on it).
I'm wondering if this is a grounding issue...???
I have a ground strap (1/4" wide) and a #4gauge wire grounding the motor to the frame, and several opthers from body to frame...#4 ga to the negative terminal on the battery.
Is this enough?
And ideas? Advice? Knowledge? Wisdom? Stabs in the dark? Anything?
I was broke before the accident, now I'm even more broke...and broken down!!!...and I can't afford to keep buying modules! HELP!!!
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