Ive got a few of these motors that Im tearing apart for scrap, first one is down to the crankshaft, flywheel, and the case half. Is there a way to get around removing the flywheel with out a puller? Ive never had to have one of these down this far, they are already off the mowers, if I do need a puller if someone could help me out with a part number that would be great! These are all the plastic top engines. Thanks!!