I'll buy that. I've hand started engines so long I almost never use my starter. Once an engine is well broken in and dialed in you never need a starter. I have never had a bearing come apart. I've seen it before. Lou Proctor once brought me an OS FS 90 that had a weird knocking sound. Turns out the retainer let go and all the balls moved to one side. This allowed the rod to hit the bottom of the case, thunk thunk, thunk. Oh and the inside of the engine was GREEN. Cool power, the "green death" had struck again. All synthetic, no castor.