Do not ask how I know however once you have it on TDC place in high gear, brake set and wheels chocked. This is to prevent the engine from turning due to pressure on the piston. Mtneermike


1953 Chevy 3100
261 and SM420
53Chevy 3100
1953 Mack Firetruck
1972 Porsche 911
1986 Honda Goldwing