JMP Piston Locking Tool
- With plug thread M14 x 1.25. The engine is blocked via the piston to loosen the nut on the crankshaft.
- Please use very carefully.
- Turn the piston slowly against the stopper, then loosen the nut with slowly increasing force.
- We accept no liability for broken piston crowns!
- This tool should be used as a last resort if all other varioblocking tools do not work and no impact wrench is available.




