And there is a little trick I use with these pullers on especial hard to get off flywheels here. That is tighten down the center puller bolt good and tight and smack that center puller bolt with a 2 lb brass hammer, which loosen the bolt some then just re-tighten bolt. When tapping the bolt just don't get to overly aggressive as you can more damage than good; otherwords, just use plain common sense. It may take a few tries but usually pops the flywheel. Just be ready to catch the flywheel on horizontal crankshafts. This works because of slight play in the puller center bolt which allows it to shock the crankshaft with a slightly higher Ft-lb pull.
You also may need to replace the washers that come with puller with better ones; that is if they anything like the cheap ones that came my Harbor Freight version which bent on the very first try.
