I have a reman Powerhead with a lot of issues.. OBR, where the Powerhead came from, somehow managed to mix up the #1 and 2 cylinder Pistons. They aren't running right for nothing, anyway in the midst of testing there was a loud pop while trying to start the motor, the entire flywheel cover cracked in half.. Scared me sh*tless. Does this mean I need a new starter or did they just put it on too tight?