I put the flywheel back on the KB-1A today and added a steel spacer
over the crankshaft to get direct contact between the rope pulley
and flywheel when the nut was tightened.
It turned out the steel spacer I tried was too high, and the big
tin spacer did not tighten up.
I ended up using two brass washers, only about 1/8″ tall, or less,
and that seem to work just right. I could feel metal to metal contact
when torqueing down the flywheel, and the tin spacer snugged up plenty.
Time will tell!
I presume it’s suppose to have an acorn flywheel nut, but I’m fresh out!
Prepare to be boarded!