Try this
Use a old electric soldering iron the kind with a big copper heat sink, get it good and hot,
put a dab of solder on it to transfer heat and hold it on the end of the broken screw until it burns the wood enough to loosen the screw.
Tom nailed it, mine had a knock at startup then would go away after a few seconds took the pan off found the center main lose removed .003 of shim all is quiet now.
John
I am looking for comments good bad or otherwise on the direct replacement led bulbs for the model a headlight. they are available from:
lbcarco@lbcarco.com
Has anyone installed these, are you satisfied?
John,
Another possibility could be a collapsed spring behind the cam plunger allowing the cam to move back and forth. This happened to me on a 29 model a I owned about 62 years ago.
the rear main cap can be removed on a counter weighted crank as I have done it, it is a very close fit and you will have to fiddle around finding the right position, however different counter weights from mine may make it impossible.
Frank,
Read my post carefully I used a puller to remove the gear however a little heat with a propane torch wouldn't hurt and may help, warmed the gear to put it on, used the kitchen stove for heat source.
I replaced both gears in my engine about 3 years ago. The crank gear can be removed with a good puller by removing the hood, front cover and radiator, loosening the motor mounts and jacking up the engine to clear the front cross member. When I replaced to crank gear I warmed it up to about 300...