OK, hit a little road block. I'm trying to remove the pulley off the crankshaft.

The service manual says to rest the pulley on a block of steel and hit the opposite side with a hammer to break the taper. OK, I don't have a steel block, so tried the old muffler with no joy. The heaviest hammer I have is 500g and I don't want to do any cold forming!

I do have a three jaw, 4" puller...? It fits...but will it result in damage?

I don't collect mowers. I just require Multiple Mowing Solutions™.