I know the starter trick but I unfortunately cannot due that since the motor I am working on is on an engine stand. i have a Matco 1200 ft lb impact 1/2 inch with 180 psi but it won't budge. Anyone have any ideas or have run into this before. I also do not have a flywheel available to hold from the back and I would like to keep the balancer in tack since it is low mileage. Any help is greatly appreciated.