belt squeeks

[Tricky1980]

What should i be checking that is causing a belt squeek... i replaced all 3 belts when i put on my under drive pulley. Now it squeeks more than it did before? what did i do/not do wrong!?
Jay

[sr20driver]

Mine starts to squeek when I rev past 4500 rpm. I guess it should be time to change mine out?

[misnomer]

OR!!!

You could just tighten the belts. . .

[SteveO1O9]

A belt will sqeek if it too loose. I've been stold that there should be around a 1/2 inch of play. Just check each belt and see hoe loose or tight it is.

[kalieaire]

Originally posted by James
OR!!!
You could just STFU and not hand out horrible advice....http://www3.sympatico.ca/travischan/PUB/ugh2.gif
I've heard bad advice before but yours take the cake! And then you're condescending too! http://www3.sympatico.ca/travischan/PUB/lol.gif

Your belts make noise because they ----> are too tight.
i.e. belts in winter that are too tight make noise initially because they contract when cold- when car warms up they loosen a little and stop making noise.
answer: Loosen them to spec and no more noise. Tighter is not better- there should be some play in the belt. + Don't apply WD-40 or anything- it will weaken the belt and not really solve the problem.

so are you, condescending i mean. none of use are better than anyone else.

---basically, if you can, get a fsm to look through it.

the belt deflection is what you need to judge whether the belt is too tight or too loose.

belt deflection - is measured by pushing down on the belt at the point in between two pulleys. At that point, you push down with approximately 22lbs of force/98 Newtons/10kg.

The belt deflection for new belts are listed for the following points.

Alternator & Crank
.24-.28 inches

Water Pump/Powersteering
.256-.295 inches without Super Hicas
.217-.256 inches w/ Super Hicas

Air conditioner
.256-.295 inches

--------That should be a good guide for you to get the belt tightened correctly. Both a loose belt and a tight belt can cause problems.

There are specific tools to purchase for testing a belt, but I just hang a 10kg weight with some fishing line tied to it to test the deflection.

-Good luck.

[FRpilot]

last time my belts squeeked was becaue they were loose. i guess from the info above.. your belts are either too loose or too tight.. so try to get it just right.. :p