In Reply to: No start 8N posted by Mike Maiman on November 29, 2022 at 15:07:27:
A couple of things I can think of:
IF you are finding TDC for #1 by the thumb over spark plug hole method while spinning the 6V starter with 12V AND all the plugs are out, it is possible the engine is coasting past TDC far enough that the next set of timing marks comes up for 2 and 3 instead of the marks for 1 and 4.
Another possibility might be the manifold has eroded between the intake and exhaust and the hole has gotten big enough that enough air is getting into the exhaust to prevent enough fuel from getting to the cylinders.
Wild guesses both.