Thread: Lower idler pulley

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  1. #1 Lower idler pulley 
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    I need to replace my lower idler pulley on the supercharger drive. Does anyone know what the bolt is. It does not have a head on it. Also is this a 3.5 or 3 inch pulley. Car is all stock 1997 GTP coupe.
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  2. #2 Re: Lower idler pulley 
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    mine had a 13 or 15 mm head on it.

    its 3.5" for the lowest one.
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  3. #3 Re: Lower idler pulley 
    Killa Bee Scottydoggs's Avatar
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    it may be a torx bolt that holds it on, does it look like a star inside the bolt head? if so its a torx.

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  4. #4 Re: Lower idler pulley 
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    I can not see it but that is what I was thinking.
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  5. #5 Re: Lower idler pulley 
    Killa Bee Scottydoggs's Avatar
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    can you feel it? like if you were to finger it a little. So dirty sounding lol

    98 Buick Regal GS, F body brakes, Caddy STS wheels, tinted tails L36 bottom end, lightly ported heads, 1.95 roller rockers, headers, gen 5 N* 3.0 pulley, FSIC, 42 lb injectors, a BrandonHall rebuilt trans, DHP tuned and AEM water/Meth injection https://goo.gl/gpV5kW
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  6. #6 Re: Lower idler pulley 
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    Appears to be the same as my idler which is 15 mm.
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  7. #7 Re: Lower idler pulley 
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    It does not have bolt like yours does. It does have a hole in the top of it. I an going to try some torx tomorrow.
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