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    Author Topic: No spark help!!  (Read 2365 times)

    Offline 73CudaLT

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    No spark help!!
    « on: July 23, 2016 - 09:57:45 PM »
    I recently converted my ignition system to hei ignition and I hooked up both ignition wires and everything else properly but I am not getting any spark from the coil. Any advice would be appreciated my real concern is how to wire up the alternator with out the ballast resistor there anymore?
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    Offline Chryco Psycho

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    Re: No spark help!!
    « Reply #1 on: July 24, 2016 - 12:23:08 AM »
    the alt should not be affected the blue wire feeds the plug at the ballast & continues to the alt field feed wether it is plugged into a ballast or not .
     SO WHy HEI , the limited rpm capability in GMs & were terrible for reliability with the wires breaking & the modules failing ?
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    Offline 73CudaLT

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    Re: No spark help!!
    « Reply #2 on: July 24, 2016 - 12:38:59 AM »
    I did the swap for simplicity and reliability. The original harness I have on here now is a mangelled mess. I hooked up the dark blue ignition wire along with other brown ignition wire and have had no luck.
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    Offline Bullitt-

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    Re: No spark help!!
    « Reply #3 on: July 24, 2016 - 06:08:41 AM »
    Do you have 12volts to the blue (run) & brown (start) wires?... is the module grounded?

    http://www.hotrod.com/how-to/engine/1311-convert-a-ford-or-chrysler-ignition-to-gm-hei/

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    Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
    Screwed by Photobucket!

    Offline 73CudaLT

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    Re: No spark help!!
    « Reply #4 on: July 24, 2016 - 09:25:58 AM »
     That's what I'm going to check today.
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    Offline dodj

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    Re: No spark help!!
    « Reply #5 on: July 24, 2016 - 11:43:03 AM »
    What is the advantage of converting to HEI?
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    Scott
    1973 Challenger  440 4 spd 
    2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
    Good friends don't let friends do stupid things. ........alone.

    Offline Bullitt-

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    Re: No spark help!!
    « Reply #6 on: July 24, 2016 - 12:30:23 PM »
    Quote from: dodj on July 24, 2016 - 11:43:03 AM
    What is the advantage of converting to HEI?


    cheap - about $20-25 although you probably want one of the higher priced performance pieces
    simplifies the wiring and you run 12 volts, no ballast which allows the use of the no oil coils
    small and unobtrusive which would be good on a non OE electronic model.
    any decent parts store will have one in stock
    This guy claims better performance... http://slantsix.org/forum/viewtopic.php?t=15779
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    Wade  73 Rallye 340..'77 Millennium Falcon...13 R/T Classic   Huntsville, AL
    Screwed by Photobucket!

    Offline 73CudaLT

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    Re: No spark help!!
    « Reply #7 on: July 24, 2016 - 06:28:54 PM »
     I got her all fixed up! Just was a loose connection. She sounds a lot healthier! Thanks for the help!
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    Offline Chryco Psycho

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    Re: No spark help!!
    « Reply #8 on: July 24, 2016 - 08:23:21 PM »
     :2thumbs:
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    Offline dodj

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    Re: No spark help!!
    « Reply #9 on: August 01, 2016 - 10:19:07 PM »
    Quote from: Bullitt- on July 24, 2016 - 12:30:23 PM
    cheap - about $20-25 although you probably want one of the higher priced performance pieces
    simplifies the wiring and you run 12 volts, no ballast which allows the use of the no oil coils
    small and unobtrusive which would be good on a non OE electronic model.
    any decent parts store will have one in stock
    This guy claims better performance... http://slantsix.org/forum/viewtopic.php?t=15779

    Hmm.  I was doing a little googling and it seems stock type hei systems start dropping sparks after 4500rpm. Doesn't seem like an upgrade to me.  :2cents:
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    Scott
    1973 Challenger  440 4 spd 
    2007.5 3500 6.7 Cummins Diesel, Anarchy tuned.
    Good friends don't let friends do stupid things. ........alone.

    Offline Chryco Psycho

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    Re: No spark help!!
    « Reply #10 on: August 03, 2016 - 09:11:23 AM »
    Quote from: dodj on August 01, 2016 - 10:19:07 PM
    Hmm.  I was doing a little googling and it seems stock type hei systems start dropping sparks after 4500rpm. Doesn't seem like an upgrade to me.  :2cents:

     :iagree:  , more like downgrade
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