Originally Posted by fyrstormer

I have a Picco engine that I've used for about a year and a half. It's a tiny engine so it sees a lot of near-redline running. I'm going to replace the crankcase so I can install ceramic bearings in it (I suck at removing used bearings from engines, I just can't get them to come out cleanly), and I was wondering if I need to replace the crankshaft to make sure the rotary intake valve will seal properly. The crankshaft is hardened steel whereas the crankcase is aluminum, so obviously the crankcase would wear faster than the crankshaft, but I don't actually know from experience if a used crankshaft can be reused with a new crankcase. Thoughts?