serpentine belt squealing

[junior4053]

I have a March serpentine belt non AC kit on my olds 455, it is squealing at higher RPMs belt is tight and water pump, alternator,& power stering pump are all new. I have dreesed the belt with belt dressing Any ideas what might be the problem?

 

[beermonkey9417]

look at yer pullys from the side, if one of them is at an off angle that can cause it to squeek. my alternader is slightly off kilter and it squeeks at idle but when i rev the motor i cant hear it over the exhaust. so if it still squeels, get a louder radio or exhaust :lol:

 

[hurst1979olds]

which serpentine is it? Is it a multi belt kit? Does it do it when you just rev it up sitting still or while driving? You can eleminate one belt and see it the squeeling stops and do the same for other belt. Also, If there is any black idlers on the kit then I would check those. I have literally put on 100's of March kits on SBC and BBC and their little idlers aren't greesed. They will be shot in minutes. Hope this helps....I actually put my march kit on my SBO. Alt and powersteering kit.

 

[junior4053]

look at yer pullys from the side, if one of them is at an off angle that can cause it to squeek. my alternader is slightly off kilter and it squeeks at idle but when i rev the motor i cant hear it over the exhaust. so if it still squeels, get a louder radio or exhaust :lol:

Looks like will have to be louder radio I guess already has loud exhaust! Hahaha. Will check that out it was a complete kit from march performance you would hope it would all line up for what i paid them!

 

[junior4053]

which serpentine is it? Is it a multi belt kit? Does it do it when you just rev it up sitting still or while driving? You can eleminate one belt and see it the squeeling stops and do the same for other belt. Also, If there is any black idlers on the kit then I would check those. I have literally put on 100's of March kits on SBC and BBC and their little idlers aren't greesed. They will be shot in minutes. Hope this helps....I actually put my march kit on my SBO. Alt and powersteering kit.

Its the single belt kit i think it does have 1 idler on it will see if thats the problem. Do you have have to take it off to grease it and what kinda grease did you use? And it squeals at higher rpms weather I am driving or just reving the motor in park.

 

[hurst1979olds]

which serpentine is it? Is it a multi belt kit? Does it do it when you just rev it up sitting still or while driving? You can eleminate one belt and see it the squeeling stops and do the same for other belt. Also, If there is any black idlers on the kit then I would check those. I have literally put on 100's of March kits on SBC and BBC and their little idlers aren't greesed. They will be shot in minutes. Hope this helps....I actually put my march kit on my SBO. Alt and powersteering kit.

Its the single belt kit i think it does have 1 idler on it will see if thats the problem. Do you have have to take it off to grease it and what kinda grease did you use? And it squeals at higher rpms weather I am driving or just reving the motor in park.

Whenever I put the kits on I usually grease before mounting. Youll have to take off the 3 small bolts and cover. Then there youll need to use a small needle to pop the dust over off the inside. I usually use a small greese gun with a needle point and use wheel bearing grease.

 

[LS1GN]

Check for proper tension. Squeal is not necessarily a bearing.

Squeal can be a mis-aligned pulley. It can be out of alignment in two ways: depth-wise front to back, and also out of alignment which is not being square with the crank.

Hope this helps.

 

[junior4053]

Thanks for all the help guys will try to get a look @ it and see if any of these issues were present.

Thanks
Matt