Classic Mustangs (Tech) Technical discussions about the Mustangs of yester-year.

electrical issues

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Old Mar 5, 2016 | 06:37 PM
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bradleyb
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Hi

My car - 66 sedan, 302 engine, mallory hei distributor, edelbrock intake, holley 550 4 barrel carb, vintage serpentine/AC system with holley electric fuel pump, Ron Francis express wiring kit. I am driving the car when the car just goes dead (no sputtering, just a complete cutout). I took a spark plug out and the end was tan and looked fine - when I crank the engine, there is no spark at the plug. I tested the hei distributor primary coil with an ohm meter and it shows 0 (the two leads) - does this sound like an issue? on the secondary coil, it looks like I have about 8000ish ohm which doesn't sound so bad. My concern is that the primary coil reading should be above 0, with a 0 reading, would that mean that it is toast?

I have a fuel pressure meter right before the carb and it looks like there is plenty of fuel pressure and I had just filled the car up and gauge is showing plenty of fuel.

Everything was working so well and my son uses this for his daily driver (good thing fuel prices are down :-)

Could there be anything else causing us to have no spark at the plug? Is there something that I am overlooking in the troubleshooting process?

Thanks everyone!
Old Mar 5, 2016 | 11:44 PM
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anyone have ohm specs at the primary and secondary they could share? I have been searching all over and have only found chevy related specs?
Old Mar 5, 2016 | 11:44 PM
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I think that zero ohms on the primary should = dead, can anyone confirm?
Old Mar 6, 2016 | 10:19 AM
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bump it up to 10:30 for how to measure your junk.
Old Mar 6, 2016 | 01:34 PM
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bradleyb
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Thanks

Can anyone think that there could be something other than the distributor, with no spark at the plugs, I can't think of what else it could be???
Old Mar 7, 2016 | 09:26 AM
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sounds like the pickup
Old Mar 9, 2016 | 12:58 AM
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thanks Bop!
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