C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Aug 26, 2021 | 06:43 PM
  #61  
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I didn't start this thread but I have learned a lot, thanks guys.
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Old Aug 26, 2021 | 06:59 PM
  #62  
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Originally Posted by 69427
Apparently it was complicated enough that the poster/questioner didn't know the answer, or how to figure it out.

He now knows the answer, and why. A simple yes or no answer doesn't help the questioner learn something useful, or how to tell if a yes or no answer guy is FOS.
Seriously, with all the info on this thread, he still doesn't know what the problem may be, other than a module going bad. We all laid out different scenarios based on opinion.
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Old Aug 27, 2021 | 07:59 AM
  #63  
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Originally Posted by Mrvettenick
So, how is the module failing justify replacing the distributor, and not just the module? And if there is something external that's effecting it, then replacing the distributor won't eliminate that external trouble source. And high secondary resistance will effect coil/module performance and life.
Ocham's Razor.....if I put two modules in a distributor and they both burned up...the distributor would go in the trash. You may have the time to sit around and contemplate what caused it but I don't....and I don't care. Swap he unit out and move on......how much time and frustration is in changing modules and being stranded on the side of the road? I have seen HEI's that burn modules and I just tell the person to swap the whole damn thing.......who cares what it is?
Measure the voltage going in......if it is good.....then away you go. And a high secondary resistance will cause a miss anyway.......but as I had mentioned earlier, it is BS that it would burn a module.....if that were true, millions of them would still be sold. Ohm the wires.....this is a common check....and if one has high resistance, change it.
I could care less what caused his module to burn.....but I am 99.9% sure it is in the distributor.....and if I am wrong, well then prove it.
New distributor, wires and plugs......now after one does this.....WHAT could cause it to fail? EMP? A curse?
Some might say this is just throwing parts at it......but at some point you just gotta punt....

Jebby

Last edited by Jebbysan; Aug 27, 2021 at 08:02 AM.
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Old Aug 27, 2021 | 09:29 AM
  #64  
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Originally Posted by Jebbysan
Ocham's Razor.....if I put two modules in a distributor and they both burned up...the distributor would go in the trash. You may have the time to sit around and contemplate what caused it but I don't....and I don't care. Swap he unit out and move on......how much time and frustration is in changing modules and being stranded on the side of the road? I have seen HEI's that burn modules and I just tell the person to swap the whole damn thing.......who cares what it is?
Measure the voltage going in......if it is good.....then away you go. And a high secondary resistance will cause a miss anyway.......but as I had mentioned earlier, it is BS that it would burn a module.....if that were true, millions of them would still be sold. Ohm the wires.....this is a common check....and if one has high resistance, change it.
I could care less what caused his module to burn.....but I am 99.9% sure it is in the distributor.....and if I am wrong, well then prove it.
New distributor, wires and plugs......now after one does this.....WHAT could cause it to fail? EMP? A curse?
Some might say this is just throwing parts at it......but at some point you just gotta punt....

Jebby
How about a cheap crappy module. Maybe that was the problem.
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Old Aug 27, 2021 | 03:46 PM
  #65  
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Hickam's Dictum ... locate specific cause(s) of failure; then correct that cause/causes.
Otherwise, why limit the curative effort to just replacing a distributor ??? toss the entire motor or acquire another car!

Wouldn't be much (if any) of me above ground had my physicians adhered to Occam.
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Old Sep 6, 2021 | 01:00 PM
  #66  
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Originally Posted by Jebbysan
Yes it does….a GM one. Brand New…almost certain to work. Whatever is smoking your modules is not worth pursuing to me and it certainly isn’t wires or plugs….total BS. Millions of GM HEI equipped V8’s drove billions of miles in poor tune with a module.
The end game here is to get the car running and reliable, right? Throw the other **** in the trash and start over with a new distributor. There is NOTHING outside of the distributor that causes distributors to fail….or not work, short of voltage too high or too low….
Myself and many others have seen HEI’s function when they really shouldn’t in some of the most challenging and severe conditions….this is why people run HEI’s in some forms of racing, cheap and reliable.
Save yourself the headache. Stick a new one in. GM has installed tens of thousand of these 806 distributors in tens of thousands of crate engines that you see everywhere for the last 30 years. They work.
The Davis DUI looks promising too….but I have never used one….nice that they will curve it for you.

Not being nasty here….you can do what you like….but I told you what I would do.

Jebby
Hay Jebby....I have read through all these responses, suggestions, and opinions. And have learned a lot. However I still don't understand your solution to installing a whole new dist, unless I misunderstood/misread on the new dist, that they are mechanically and electrically the same. Which is to say ....it still uses the same set up, coil, pick up coil, mod, vac advance, mech adv. .....Please explain the diff to me.
Thank you.
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