new belt squeal
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This is a discussion on new belt squeal within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hey guys, asked this over at NASIOC too, but hoping maybe you guys can give some advice as well. A ...

  1. #1
    DUB
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    new belt squeal

    Hey guys, asked this over at NASIOC too, but hoping maybe you guys can give some advice as well.

    A little while back I noticed a very slight squeal and figured it was a belt. I could only hear it at idle, it didn't increase w/ RPM or anything, once underway the road noise was enough to drown it out.

    Yesterday I removed the alternator to get at the oil pressure sender and I noticed the P/S & Alt belt had a big ol' lengthwise split. I figured that must have been why it was squealing. Went to NAPA, threw on new belt. I installed it with tension about matching the AC belt and now it squeals somethin' fierce, like ear piercingly loud. I tried taking a little tension off, then a little more. To get it to the point where it doesn't squeal it is just barely hanging on, about 1.5 inches of deflection I would say, too much.

    So, any advice? Do new belts often squeal (never changed one before), are there any tricks I should try? Could it be a pulley and how would I tell? Also, I know the PS/Alt belt is the culprit and I fired up the motor with out it and all was silent.

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    Cheap belts and improper tension can cause squealing.
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  4. #3
    DUB
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    I just bought the one the guy at NAPA handed me.

    I tried every tension between way too tight and way too loose, the squeal subsides towards the looser end.

    I'll try some belt conditioner.

  5. #4
    Registered User EvoEatr's Avatar
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    Quote Originally Posted by DUB View Post
    I just bought the one the guy at NAPA handed me.

    I tried every tension between way too tight and way too loose, the squeal subsides towards the looser end.

    I'll try some belt conditioner.

    If you can, I highly recommend Subaru belts, way to many problems in my opinion in terms of the aftermarket, I have dealt with it time and time again, also the price difference, if any isnt much at all...

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