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Old 09-22-2011, 09:12 AM
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Kelly Kelly is offline
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Coil input information

Just fishing for comments here.

I am in the population of people who have fried multiple coils with minimal use (two that I purchased plus one that was already on the engine when I bought it). I have just recently lined up my ducks by eliminating possibly mis-matched parts in the ignition circuit: new plugs and wires from Moyer Marine, new Pertronix Flamethrower coil (oil-filled; 40,000V; 3.0Ohm) to go with my Pertronix electronic ignition.

I made a few measurements today with my basic digital volt-meter. Positive was taken from the + on the coil and ground was a near-by head nut.

Results:

1)Everything off: 0.25V
2)Ignition switch on: 11.12V
3)Cranking engine: 9.3V
4)Engine started at idle, cold (no alternator): 11.7V
5)Engine idling at 1000RPM w/ alternator excited: fluctuating from 5.4V to 13.5V
6)Engine warm at 1400RPM w/ alternator : settled at 14.04V
7)Engine warm at 800RPM: 13.0V

5, 6 and 7 are with the engine in gear.

I am way over my head here so any comments? Missing information?
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Kelly

1964 Cheoy Lee Bermuda Ketch, Wind and Atomic powered


Last edited by Kelly; 09-22-2011 at 09:15 AM.
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