Ive got an awful rattle coming from inside the cam belt compartment. It gets louder as it builds up rev's. For some reason, it seems to go away when the engine reaches temperature. Ive been told that it could be a loose cam belt roller. Ive also been told that it could be my water pump on its way out.
Has anyone had similar problems?
Car is an Astra 1.6 16v sxi