The belt should be toward the loose side but not so loose than when you try to turn the alternator pulley the belt will slip allowing you to turn the pulley. Much tighter than that and you will kill the bearings in the water pump and the alternator. It sounds like your alternator could be out-of-alignmnet. Vee belts do not like misalignment, everything MUST be in the same plane. Check with a string or a straightedge. Also make sure the belt is correct. It should not be riding on it's bottom, ONLY the sides of the "vee". It is also possible you have a problem with the alternator or the water pump. David Teitelbaum vin 10757 --- In dmcnews@xxxxxxxxxxxxxxx, "Robert Lingo" <rlingo@xxxx> wrote: > How tight must the alternator belt be? I had a belt beak on me once. Here's > what happened: I started the car after it had sat for over eight hours > (while I was at work). It ran very rough after starting. When I pressed the > accelerator I heard the belt squeal a couple of times. All of a sudden a > To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/