You should not be having this much trouble. I suspect, by what you just said, that the last person to take it off (whoever rebuilt it) didn't torque the crank bolt to 195 ft/lbs (which would explain why you didn't have a problem taking it off) and since then, from running the engine like that, the crank pulley started to "spin" on the woodruff key on the crank and now the part of the key that doesn't contact the pulley is catching on the pulley when you try to pull it off. Its hard to explain but it happens on many cars, on 89-95 SHO motors its called crank cancer.
If you ever do get it off I bet the woodruff key will be in 2 or 3 pieces.
If you can't take it off the way I did with a screwdriver, something is not right.
|