i need to get my bottom crank pulley off to change the cambelt on the zetec engine however the engine is on a pallet with no gearbox connected ,ive tryed locking up the fly wheel but when i try and leaver on the pulley nut it just lifts the engine up , any idea's?? fan belts already off as is the alternator and water pump pulley , just need the crank pulley off to change the cam belt so i can get it ready to fit in to the car

cheers

craig