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Supercharger-like whine from smaller pulleys?

 
   
Old Mar 28, 2006
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Supercharger-like whine from smaller pulleys?
I have an aftermarket alternator custom installed on my car, with a pulley that is smaller than the stock pulley. I've had this pulley on for the past couple of days, and I've noticed that when I'm accelerating, I can hear a whine from my engine, similar to what a supercharger sounds like. Is this normal, or is it okay rather? It seems fine to me, but I don't want it to be there if it shouldn't be.
Old Mar 28, 2006
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like alternator noise?
Old Mar 28, 2006
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Is it a higher output alternator? If so it's probably just the whine of the alternator, they usually are harder to turn if they are higher output alt's...
Old Mar 28, 2006
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Yes, it's a 200a GM small case (CS130D). It's not alternator noise, like from the speakers, it's a whine coming from the engine itself, like mechanical noise.
Old Mar 28, 2006
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Might Be The Belts. Get Some Stp Belt Dressing And Spray Them Down.
Old Mar 28, 2006
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Croaking alternators sometimes make a low pitched whistle that gets higher in pitch with engine rpms.
Old Mar 28, 2006
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PM on how you spent on your alternator if you can, my diode is going bad, and i need a H.O. alt...
Old Mar 29, 2006
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Not not like alternator whine from the speakers and through the electrical system, I mean the physical alternator whining because it's much more weight to spin and more resistance. It's like it's fighting against a motor and it rev's itself up, only with magnets and ****....
Old Mar 31, 2006
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it might be your belt is to tight... check it
Old Mar 31, 2006
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rca cables?
Old Mar 31, 2006
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was it a new or reman alternator? where did u get it?
 
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