I am changing my timing belt. Last time i did this when i rebuilt the engine I had an impact and now i dont. Thats not my problem how do i get the crank pully to stop turning. I have tries a screw driver a piece of wood, I am running out of ideas. last tiem i uses the screwdriver and an impact. worked well now i am reduced to a 3/4 socket and a 1ft bar...........