Quote:
Originally Posted by JayChicago
"Today, I found that it will also start immediately if the ignition switch is moved to 'ON' while the starter is engaged."
This is a mystery to me. Any electrical gurus want to explain this? Starter is still cranking, still pulling down voltage available to the ignition circuit. Dirty ignition switch making better contact while transitioning from off to on?
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Hard to tell why this is true without more data, however it may have to do with the resistor. If the ignition is ON then a start is attempted, it’s possible the current flow heated up the resistor. Under heated conditions the resistor likely has more resistance than a cold resistor. If the engine is cranked and the ignition then flipped to ON, there may be less resistance in the resistor and starting is then more likely. This is a guess but it would make me want to check that resistor. Some of the newer repro resistors aren’t very good. I had a new repro act funny, found a NOS replacement and solved that issue.
Besides checking the condenser (another typical problem), if your running ethanol gas you could be getting bubbles in the carb or the fuel bowl could be boiling under high heat. Had this happen on my ‘39. I put a carb spacer in which helped but switching to non-ethanol fuel solved that problem.