No spark

Discussion in 'Troubleshooting & Diagnosis' started by Layne02, Jun 29, 2019.

  1. Gary S

    Gary S Administrator Lifetime Gold Member

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    Cars with HEI no longer used the wire from the starter to power the ignition during cranking. That was something needed only on points ignitions to bypass the resistor wire. The HEI gets full power directly from the ignition switch in both "start" and "run". If the new harness is wired exactly like the original, and the power isn't going to the HEI during "start", it appears that the ignition switch is defective.
    The wiring diagrams show the pink wire to the HEI should be powered during both "start" and "run".
     
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  2. Layne02

    Layne02 Veteran Member

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    Well alrighty, I swapped ignition switch for an old one. That fixed the loss of voltage in start position. Now the thing still doesn't start, so thinking timing may be off . At least I have one problem fixed, on to the next one.
     
  3. Gary S

    Gary S Administrator Lifetime Gold Member

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    Good! Now you move on to another problem. Not what you wanted, but at least you can consider it progress.
     
  4. Layne02

    Layne02 Veteran Member

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    This car has gone fairly smooth so far, guess I was due a problem or two.
     
  5. Layne02

    Layne02 Veteran Member

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    Forgot to say thanks for all the info!
     

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