Jim, I got the bearings at the local bearing supply house. I had to remove one of the shields (five seconds), and heat the crankcase halves in the toaster oven. The rubber seals were ok, so I didn't mess with them. They are separate from the ball bearing assembly. I also replaced the bolts with allen style heads, per your suggestion. I had to make a new gasket for the cylinder/crankcase joint.

Steve, I didn't try that, but I'll give it a shot next time I have it out. I need to get the plane ready now.

Everybody, Do you think those RPM figures in line? (not that I can do much about it )