Davegmc1 An oaken 2x2 big hammer,have a helper keep the crank pried forward each blow,however I didn't do that on my 235,don't have to kill it just drive iton ! Will be able to tell when it bottoms out. May have to use a punch thru the crank hole if 2x2 wont go in there,pad the balancer with wood or brass. I have sat on the head surface and used the hammer but it will bruise the balancer,that was as a young mechanic 60 years ago.