Since the rebuilder’s kit came with a cam bearing installation and removal tool, we popped the $33 for the cam bearings (Sealed Power PN Z1205M). However, once we had the engine apart, our existing cam bearings were in fine shape. We originally used a flashlight to peer at the cam bearings, and the new cam felt good when we installed it. We were able to use this Harbor Freight LCD inspection camera for a better look and were able to verify the bearings looked good. It would have been better to measure them with a micrometer and feeler blocks, but we had no way to get an inside micrometer in there and no blocks with enough reach, so we’ll run it as is and return the bearings.