I have a John Deere 70 Diesel with a pony motor that is stuck.  (Just the pony motor, NOT the diesel)  I don't see much in the way of being able to move the flywheel/turn the engine over on the pony.  I know I can take it out and may need to...BUT... is there a good way to try to turn it over?  I'm soaking with PB Blaster now and I did remove the cover over the flywheel to try to pry it some carefully!!

What else can be done?  I don't see a good way to put pressure on the pony to make it turn other than a little prying...