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Old 12-13-2020, 08:34 AM   #12
shew01
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Location: Roanoke, VA USA
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Default Re: Could a bad tachometer make a Model A hard to start?

Quote:
Originally Posted by Chuck Sea/Tac View Post
Dwell is the time the coil is energized and saturating, meaning the points are closed. The reason the spark is “hotter” with a wider gap, is because the coil is putting out more voltage(up to its maximum design). If the gap is too wide, you’ll over work the coil and it will fail.
Thanks for the feedback.

The higher output from the new Pertronix coil “fixed” the hard starting for the moment, and my wife and I were out in the car yesterday because it turned out to be a warm day. The car has fired up on first crank multiple times all day yesterday and the day before on the Pertronix coil.

I plan to put one of the other coils back in the car and adjust the points wider to see if that makes a difference with either of those coils. I'd like to determine what caused the issue in the first place.
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