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coil questions

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3 replies to this topic

#1 willie


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Posted 04 June 2017 - 01:36 PM

Hello everyone!!!   I am having trouble starting one of my parts cars. I don't have spark to the plugs so I backed up to the coil. No spark from the coil to the dist. I check the pos and neg side of the coil and no juice. So I changed the coil as I am removing the coil I noticed the condenser wire is broken. I am not sure if the points cond is the same but that's all I have so I put one on and a used coil in, and now I have juice on the pos and neg when I turn the key on, but still no spark to the dist when I crank the car. 

1st question  Will any GM coil work as long as its an 8 cyl, how do I know they are good?

 2nd    will the points cond work on the outside of the dist?


Thanks for the help guys


#2 cny first gen 71

cny first gen 71

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Posted 05 June 2017 - 07:54 PM

I think any 8 cyl coil will work but I think thats a noise supressor not a condencer but not 100% positive. Hopefully someone else wll chime in.
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#3 willie


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Posted 18 June 2017 - 04:25 PM

Thanks Steve I am going to change out points, cond and the noise suppressor. Before I change the coil again.


#4 Toppless72


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Posted 30 June 2017 - 07:31 PM



In order for the coil to work you must deliver power to the positive side. In your first post you mention that you checked it and there was no power at either side. That is the first problem to solve. When you checked it was the key in the run position? If not turn the key to the run position and using a VOM or DVOM see if there is power and how much. The minimum would have to be 9 volts for the car to even try to start. If you want to test your coil before you change it here is a simple method explained.



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