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Serpentine Belt PT# for set-up minus PS...

This is a discussion on Serpentine Belt PT# for set-up minus PS... within the External Engine forums, part of the LSx Technical Help Section category; I've scoured 3 different car sites and none seem to have a consistent definitive answer, so here goes my request ...

  1. #1
    Visualize°Design°Create SSwt00SS's Avatar
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    Serpentine Belt PT# for set-up minus PS...

    I've scoured 3 different car sites and none seem to have a consistent definitive answer, so here goes my request for info...

    I'm running the following setup: EWP and ASP U/D pulley with full accessories. Belt goes around all pullies. Running all new belt (for current setup), tensioner pulley and idler pulley. Disregard A/C since it runs off a separate belt and is disconnected.

    Now, for the sake of conversation, let's remove the PS. If I keep the idler pulley with length belt do I need? If I remove the idler pulley, then what length belt would I need? Part numbers for both options?

    No need to ask for reasons why (in theory) PS is being removed, as that is not critical to the point of the thread.

    This is all about belt length running a setup with an EWP, U/D pulley without PS. Thanks.

  2. #2
    Waiting on the Tree transamtom's Avatar
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    Run a piece of string around your pulley route and measure its length.

    That gets you the length the only other thing the parts store needs is the amount of grooves and they can pick you out your belt.

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    Spaz is My Mentor SMWS6TA's Avatar
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    ^^this

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    ok, that makes sense to attempt.

    my only question: would you compensate (if necessary) for the belt length to be under tension on the tensioner pulley with no belt on? just get the overall (non-tensioned) and take out an inch or so?

    not sure if it's possible to string it with the current belt on. thanks.

  5. #5
    Spaz is My Mentor SMWS6TA's Avatar
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    based on the string measurement the parts shop can match up to the belt size you need. They should be able to have on very close. I would subtract maybe an inch to compensate for the tensioner.

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    '12 Silver SS 1SS
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    Ordered a Goodyear Gatorback belt to see if it cures what ails.

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    '12 Silver SS 1SS
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    Follow up: Installed a 76" Goodyear Gatorback belt (retaining all pullies), and no more issues. Apparently, even with double checking and replacing pullies, belt, etc., the car caught a case of 'sqeaky serpentine belt' syndrome. It was insanely terrible sounding on a cold start until the car warmed up, but anything over 1500rpm, it would start up again.

    After logging about 60 miles, and 5-6 cold starts, the chirping sound is completely gone and the issue resolved (hopefully to never return)...

    Very pleased as I was told by a 'tech' that the P/S pump/pulley were bad and needed to be replaced. Thankfully that was not the case and the headache from having to spend more money and time was avoided.

  8. #8
    Waiting on the Tree transamtom's Avatar
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    Sometimes its the idler pulleys,I pulled all mine removed the covers with a small pick and a tiny screwdriver and re-greased the bearings.

    3 of the 4 were dry and possibly on the way to failure soon.

    Here is a how to guide:

    Sorry I didn't know.


    Had to remove link, against rules of forum. You can send it to him in a pm.
    Last edited by transamtom; 08-20-2013 at 08:56 AM. Reason: unauthorized link
    2010 Camaro SIM 2SS/RS A6
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    12.265 at 110.52mph

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    '12 Silver SS 1SS
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    TATom, I did that to both the tensioner pulley and idler pulley before replacing them. and yes, both were 'dry'. I repacked using high-temp wheel bearing grease. Thank you though for the suggestion. I always try the free route before having to spend the $$$.

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    '12 Silver SS 1SS
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    This is what the tensioner pulley looked like:



  11. #11
    Waiting on the Tree transamtom's Avatar
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    Cool I just thought I would throw it out there.

  12. #12
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    '12 Silver SS 1SS
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    Thank you for doing so. Anyone else who reads this thread will be able to use/try your suggestion. Great addition!

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