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Thread: Laser pulley alignment

  1. #1
    Forum Member ultradriver10000's Avatar
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    Default Laser pulley alignment

    Does anyone have a laser pulley alignment tool I can barrow or know of a shop that has one that can check my blower alignment on the quick?

    I have an F1-X blower with an 8 rib set up, but I keep snapping the damn belt. I have two red bypass valves and a huge BOV, not sure what else it could be. Just want to make sure the pulleys line up before I order 10 rib pulleys for her.

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    Forum Member wickettoby1's Avatar
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    Is it breaking the belt under load or when you lift the throttle?

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    Forum Member ultradriver10000's Avatar
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    Quote Originally Posted by wickettoby1 View Post
    Is it breaking the belt under load or when you lift the throttle?
    Normally when I lift.

    Does anyone know if it is better to have a slightly longer or shorter belt? I have an adjustable spring loaded tensioner, so I can run belts +/- an inch or so. I've been using the smallest belt that I can, but maybe a slightly longer belt will let it stretch more?

    I ordered a 10 rib pulley and a gates RPM belt, so we'll see what that does. I have been on an 8 rib and normally using the Gates Green belts.

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    Forum Member wickettoby1's Avatar
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    I had the same issue as you on my Foxbody. When I would lift off the throttle the belt would eject itself off of the engine or break. In my case it was the fact that someone previous to me had removed the Procharger designed/supplied belt tensioner and installed their own design.

    I would check your tensioner to make sure that its adjusted properly and pretensioned.
    Last edited by wickettoby1; 08-20-2020 at 04:17 PM.

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    Forum Member wickettoby1's Avatar
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    I thought alignment was my issue also so a buddy made me up a jig with a dial indicator on it to check the alignment from pulley to pulley. All along it was the tensioner.

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    Club Member WhiteHawk's Avatar
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    There is a place in Indiana that I heard did good work with pulley alignment. They did someones car on here I can't remember whose though - maybe George's? I want to say Dynotech maybe?

    -Geoff
    2016 Camaro Convertible 2SS

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    Forum Member ultradriver10000's Avatar
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    Quote Originally Posted by wickettoby1 View Post
    I had the same issue as you on my Foxbody. When I would lift off the throttle the belt would eject itself off of the engine or break. In my case it was the fact that someone previous to me had removed the Procharger designed/supplied belt tensioner and installed their own design.

    I would check your tensioner to make sure that its adjusted properly and pretensioned.
    Thanks for the advise, the pulleys look straight with a straight edge and the belts don't show side wear, so the tensioner could be a real possible issue.

    Quote Originally Posted by WhiteHawk View Post
    There is a place in Indiana that I heard did good work with pulley alignment. They did someones car on here I can't remember whose though - maybe George's? I want to say Dynotech maybe?

    -Geoff
    Thanks I'll check it out.

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    Club Member Torxila's Avatar
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    I have a Gates 91006 tool if you want to borrow it. I'm in Farmington Hills 48331-1272

    https://www.amazon.com/Gates-91006-S.../dp/B000WYFI1A


    Text me: two 4 eight three one eight two 8 seven 8


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    Club Member 1BADAIR's Avatar
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    Sure both reds are working?
    A gun is like a parachute. If you need one, and don't have one, you'll probably never need one again.

  10. #10
    Forum Member ultradriver10000's Avatar
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    Quote Originally Posted by Torxila View Post
    I have a Gates 91006 tool if you want to borrow it. I'm in Farmington Hills 48331-1272

    https://www.amazon.com/Gates-91006-S.../dp/B000WYFI1A


    Text me: two 4 eight three one eight two 8 seven 8


    George
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    Texted

    Quote Originally Posted by 1BADAIR View Post
    Sure both reds are working?
    Humm I think so, I'm not even sure how to check that any tips?

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