i had broken exhaust manifold stud on rear of engine. Mechanic tried to drill it but could not. He removed the head sent it to a mechine shop to have it filled and redrilled. Put it all back and it seemed fine. 200 miles later car broke down, had to be towed back.
He tells me the crank shaft broke off. He showed it to me. It broke off flush w/ the pully/wheel that the timming belt goes on. he said that it was nothing to do with what he did. how does this break off. Is it because he put timming belt on wrong?