I just replaced my alternator (what a pain in the but), anyway, after installing the new belt, it is squealing like crazy. If anything, I thought the belt was too tight. Anyway, how tight should I screw the Idler pully? It was on so tight, I needed extra leverage to loosen it. When I retightened it, I was conservative. It wasn't squealing before I changed the alternator, so I'm farely certain that is must be my belt. Is it a general rule of thumb that if it is squealing, that the belt is too loose?