Thread: Non-standard idler pulley bolt?

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  1. #1 Non-standard idler pulley bolt? 
    Donating Users LuckyBambu's Avatar
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    So I went to change my tensioner and idler pulleys tonight, all went well EXCEPT my 3.5" smooth idler. I don't seem to have a 15mm bolt on this one... it's more like some kind of a star pattern in the middle?

    Is anybody familiar with this? Documentation I see seems to list 15mm bolts for all the pulleys.

    I don't have a whole bunch of tools, so if anybody has any ideas what this might be I would be appreciative.
    2000 Pontiac Grand Prix GTP Stock
    Coming Soon: Headers, Intake, Tune, Pulley Drop, Thermostat, Spark Plugs, Ported Supercharger, Ported Throttle Body, Coolant Switch (Green Stuff ), Headlights/Taillights, Speakers, HUD Fix, LED Interior
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  2. #2 Re: Non-standard idler pulley bolt? 
    GrandPrix Junkie redlinepontiac's Avatar
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    torx most likeley
    RayRay
    92 Turbo miata
    71 bagged lemans wagon
    02 lexus is300
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  3. #3 Re: Non-standard idler pulley bolt? 
    GTX Level Member stlmo_gtp's Avatar
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    Quote Originally Posted by redlinepontiac View Post
    torx most likeley
    that is what it is...don't recall what size tho
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  4. #4 Re: Non-standard idler pulley bolt? 
    Killa Bee Scottydoggs's Avatar
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    ive found cheap sets of torx for like 5 to 10 bucks, they snap on to a 3/8 ratchet.

    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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  5. #5 Re: Non-standard idler pulley bolt? 
    Donating Users LuckyBambu's Avatar
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    Tea Time suggested a T50?
    2000 Pontiac Grand Prix GTP Stock
    Coming Soon: Headers, Intake, Tune, Pulley Drop, Thermostat, Spark Plugs, Ported Supercharger, Ported Throttle Body, Coolant Switch (Green Stuff ), Headlights/Taillights, Speakers, HUD Fix, LED Interior
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  6. #6 Re: Non-standard idler pulley bolt? 
    GrandPrix Junkie redlinepontiac's Avatar
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    t45, t50ish
    RayRay
    92 Turbo miata
    71 bagged lemans wagon
    02 lexus is300
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  7. #7 Re: Non-standard idler pulley bolt? 
    Donating Users LuckyBambu's Avatar
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    A T45 worked... it might have been a T47... was a little bit bigger than the T45 it seemed but the T45 worked.

    Victory over Pulleys day.
    2000 Pontiac Grand Prix GTP Stock
    Coming Soon: Headers, Intake, Tune, Pulley Drop, Thermostat, Spark Plugs, Ported Supercharger, Ported Throttle Body, Coolant Switch (Green Stuff ), Headlights/Taillights, Speakers, HUD Fix, LED Interior
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  8. #8 Re: Non-standard idler pulley bolt? 
    GrandPrix Junkie redlinepontiac's Avatar
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    win
    RayRay
    92 Turbo miata
    71 bagged lemans wagon
    02 lexus is300
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