TOPIC: 1957 Mercury Mark 75 No spark

1957 Mercury Mark 75 No spark 7 years 1 month ago #133397

MetallHed
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Ok still plugging along on this motor.. replaced timing belt, fuel pumps, plugs, lower end lube, impeller.

Pumps fuel and water. Turns over fine.

Starter button doesn't work and no spark on all cylinders. Are these related problems? I don't read power at the coils or resistors but there is continuity. I have power at the solenoids. Solenoids turn motor when hooked up directly to battery.

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1957 Mercury Mark 75 No spark 7 years 1 month ago #133411

dave bernard Away Platinum Boarder Posts: 1470 Karma: 95 Thank you received: 30	Could be a broken wire in the external wiring harness Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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1957 Mercury Mark 75 No spark 7 years 1 month ago #133413

MetallHed Offline Junior Boarder Posts: 64 Karma: 1 Thank you received: 2	Would the controls and external wiring harness be worth it to rewire completely? Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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1957 Mercury Mark 75 No spark 7 years 1 month ago #133414

dave bernard Away Platinum Boarder Posts: 1470 Karma: 95 Thank you received: 30	do a ohm test to see IF a wire is broken. Check this box to be notified of replies to this topic. Note: BBcode and smileys are still usable.
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