I'd suggest pulling the starter and using a pry bar on the flywheel ring gear teeth through the starter mounting hole. Turn a few teeth until things get tight, then back up and roll it the other way. You'll probably need to do the back and forth thing several times before it will make full turns.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!