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installing asp underdrive pulley

This is a discussion on installing asp underdrive pulley within the External Engine forums, part of the LSx Technical Help Section category; i am wanting to install this myself and i did a search on the install and went to ls1 how ...

  1. #1
    rique71
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    installing asp underdrive pulley

    i am wanting to install this myself and i did a search on the install and went to ls1 how to , looks pretty simple. the only thing that has me worried is the part about putting a screwdriver in the flywheel to keep it from moving. what bothers me about doing this myself is , what if i put a screwdriver in the flywheel , and the engine still moves ? will that cause a big problem inside the engine

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    Senior Member JonB's Avatar
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    It won't cause any problems if the engine moves. If you have a m6 you can just put the car in gear to keep the motor from turning. Not sure on an a4 other than the old screwdriver in the flywheel.
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    rique71
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    r there any special tools needed for this other than a puller?

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    SS#430 1 of 74 7camaro7's Avatar
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    Senior Member JonB's Avatar
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    Quote Originally Posted by dag711 View Post
    r there any special tools needed for this other than a puller?
    A puller, new bolt, torque wrench and perhaps a big breaker bar. Thats all you should need.

  7. #7
    rique71
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    ended up taking it to mechanic cause i got called into work and he just told me that the pulley goes in to deep and he cant get the belts on .

  8. #8
    Veteran 0rion's Avatar
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    Quote Originally Posted by dag711 View Post
    ended up taking it to mechanic cause i got called into work and he just told me that the pulley goes in to deep and he cant get the belts on .
    wtf?? That's why I do my own work right there. Goes in to deep? Is it the right pulley because other than that I can't see why he would have that problem.

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    rique71
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    rique71
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    anyone?

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    Veteran 0rion's Avatar
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    that looks like the right one. I would get the part number and call somewhere to verify the part number is correct.

  12. #12
    rique71
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    i was just looking at the thunder racing website, and if i looked at the right things i think they r to different part numbers

  13. #13
    Veteran 0rion's Avatar
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    Yeah, I just looked at TR too. The part numbers are different. To be honest with you I'm not exactly sure what's different between the two. The vettes accessories are in different spots but I didn't know that would effect the depth of the pulley. Learn something everyday.

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    Senior Member INMY01TA's Avatar
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    Looks like the same pulley I got.

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    Junior Member Eddie 70's Avatar
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    My ASP Underdrive pulley has part number 948500. It is for a F body LS motor according to LMMotorsports where I bought mine at.

  16. #16
    rique71
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    is it stamped on the pulley?

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