I recently dissembled and honed and re-rung the piston. I checked all the clearances per the service manual. Everything checked out, so i assembled all the pieces and she started right away ran perfect for about 30 seconds then a loud squeaking noise started so i shut it down. So i'm back to tearing it down, there are aluminum shavings on the crank case walls by the cam shaft. I can turn the cam by hand but it won't come out and i don't want to break the case by prying. You guys have any tricks? A small slide hammer would be awesome but i don't have one. Thank for your help over the years.