Re: Flywheel, crankshaft

[Tubs]

You might try taking a straight edge like a 6"
machinist ruler and lay it on the threads to
see how much they’re pushed out. You can go
around the crankshaft with a file to remove
the high spots. When you get the ruler to lay
flat on the threads all the way around your
die should fit on and you can clean up the
threads.

A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.