Belt Squeeling

The Drake · Newbie Joined: 12 Jun 2004 Posts: 32 City: B.C. Interior

I have had a belt sqeeling issue for quite some time. The squeeling is not that loud.
My belt seems to start to squeel when the motor warms up. It usually happens alot quicker on hot days, but ofen take about 15 minutes of full throttle driving to start the "constant light airy squeeling noise".
The belt seems to be fairly tight.

Should I try a belt dressing kit or a bar of soap????
Or is it time to maybe change the belt??

Oh ya.....
2000 Merc 350 MPI on a 21V

Thanksomuch

Johnny5 · Criminal Joined: 17 Apr 2004 Posts: 82

Sorry for the bad news but best to replace the belt, always good to have a spare if that doesn't fix it but belt dressing, soap etc... are all bandaids to a problem.
The only other thing is make sure it is the belt and not a bearing in the water pump etc....
good luck.

tryan · Soul Rider Joined: 06 Feb 2003 Posts: 257

look at your mounting. are all the pulleys in line? are you running a high load? is water being squirted onto the belt?

nothing destroys bearings faster then overtightening a belt or leaving the belt on during long term storage. go for a half inch of slack on the longest run of the belt.

change the belt (keep your old one as a spare) and i believe merc did have some pulley issues. you might want to look into it.