LT1-LT4 Modifications 1993-97 Gen II Small Block V8

belt screaming

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Old Nov 27, 2005 | 10:20 AM
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imnotplutonium's Avatar
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Default belt screaming

I just got the pulley kit installed but now if I turn on my ac compressor at all it screams so loud it is unbearable. I have been told the shop prolly put too big a belt on. any ideas? no quick fixes for this one? also my alt. isnt charging at the low rpms but im just going to set my idle up to around 800-900 rpms to counter the charge effect that should be ok right?
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Old Nov 27, 2005 | 11:56 AM
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It is possible they put too big of a belt on. If the belt is too big, the tensioner pulley won't be able to put enough tension on the belt to hold on to it, like when you kick on the a/c compressor.
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Old Nov 27, 2005 | 12:33 PM
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The tesioner should have some marks to indicate the proper stretch, use those marks to get the proper belt size.
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Old Nov 27, 2005 | 02:52 PM
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you can try spraying silicone on it to see if that takes it away. sounds like belt is too big or loose. that would help explain low charge due to the fact the alt pulley isnt being spun fast enough at idle. the screaming with the compressor could just be additional slippage.
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Old Nov 27, 2005 | 06:23 PM
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Or a bad bearing on the alternator or PS pump. Probably not since the symptom didn't show up til after the pulley swaps.
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