We've tried pushing the cars backwards, turning it backward with the front shaft bolt, or pushing forward in reverse. When the stuck...THEY STUCK! Its obvious how much leverage this tool has with its gear ratio. I only recall this happening to 4 or 5 in the 30 years I've been a dealer.

 

Bob Mears

Supermarine Spitfire

My trick was shown to me by a truck mechanic, was to warm the engine to normal and run it up to 2,000 RPM. Very slowly, pour in a pop bottle full of tap water. Add some top oil when complete. 99% of the carbon will be gone. Works on rotaries pretty well. Amazing on piston engines. Did you ever replace a failed head gasket? Notice the lone, carbon free piston?

 

 

Lynn E. Hanover