12. The flywheel bolts are not only pretty tight they were coated with thread-locking compound from the factory. If the motor is turning over while you are trying to remove the bolts, clamp a set of big locking pliers to the flywheel. They will eventually rotate around and hit the bell housing and hold the flywheel in place. A large flat blade screwdriver pushed into one of the flywheel teeth on the ring will do the same thing but that will require you to use two hands and the screwdriver will most likely slip.