hi everyone i put a new coolant pump in a 300 engine and now it occasionally puffs clouds of steam out of the exhaust. the coolant level does not seem to be going down but occasionally the temp gauge rises i cant seem to understand what's happening. can anyone suggest a reason ? i can only think...

while i was taking off of my water pump i sheared one of the long bolts. has anyone got advice about putting the new pump back without replacing the bust bolt. will it leak? should i strip off back to the engine block where it seems to be threaded from? how do i get at the broken off bolt ...

rocker shaft has snapped into 4 bits two head pedestals broken one head pedestal stud hole stripped :( i would like to hear of any suggestions why this happend the only thing i can think is that the stud was overtightend and partly stipped the thread in the alloy head i intend to...