Belt and Pully Squeak

[Mac]

I installed a new power steering pump and pulley in my 1988 Comanche.  Now the serpentine belt is squeaking loudly.  The cause seems to be that it is ridding near the rim edge on the fan pulley under the AC compressor.  I have sprayed WD40 on that part of the belt at that point and the squeaking stops for a short time.  My question is how do I adjust the belt to ride more toward the center of that pulley.  All the other pulleys seem okay.  I don't see any method of adjustment.  Does anyone have a suggestion?  Thanks.

[jdog]

How is your harmonic balancer? There is no way to route the belts to ride where you want them to be on the pulleys

[Dzimm]

Loosen the adjuster a bit and you can adjust belt placement, then tighten it back up.  The serpentine belt needs to be really tight.  With moderate force you should only be able to twist it 1/4 of the way over itself by hand is about the best way to measure the correct tightness.  

[1987Comanche]

I chased belt squealing/chirping on my '92 for a long time.  What P/S pulley do you have?  Plastic, metal with no holes, or metal with holes?  The metal pulleys are bottomed out while the depth needs to be set on the plastic one.  If it didn't squeak before but does now I'd start there.

[Mac]

The pulley on the P/S pump is metal with holes.  And it seems to be tracking fine on that pulley.  I've noticed that the belt is riding on the rear edge lip of the fan pulley and I think is where the squealing is coming from.  I just don't know how to get it to stay in the center of that pulley.  Should I try a gatorback belt?

[Dzimm]

No need for additives.  Loosen it up, get the belt aligned on all pulleys and get the belt good and tight.  It shouldn't move once it's tight, although it may have been riding off center of a pulley for a long time without you knowing and that's just where it wants to ride now.