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  1. #1

    Default A/C Belt jumping around

    So on my '86, when the air kicks on, the belt jumps around like it really wants to come off. It does fine when the compressor isn't running. I've tightened the heck out of it. Wondering if I should get a shorter belt and readjust that way or if there's something maybe wrong with the clutch?!? What do ya'll think?

    Thanks
    TNT - Texas

    First - '68 longbed (lady runs stop sign, insurance gives me a check)
    Then - '81 SWB (stupid stupid stupid...sold it thinking I was going to get something else)
    Now - Finally got my '86 (350, Holley 600, 700r4)

  2. #2

    Default

    My wifes altima does the same thing until you pick up the rpms. Ive replaced belt, tensioner, compressor. All with little improvement. at this point not sure if it is a pulley or even engine mount? I know it doesnt help much but have been trying to find the same answer.
    David
    2004 Silverado 2500 Crew Cab 4x4, AMSOIL EA air filter, Granatelli MAF sensor, Throttle body spacer, Magnaflow exhaust (true dual to 2 in 1 out muffler), 6" ProComp lift (add a leaf and 5" superlift rear block), Bilstein shocks, 35's (Cooper Disoverer ST) and 4.10 gears, Rhino Liner, EGRUSA fender Flares and widow visors, extended stainless steel brake lines, firestone airbags w/onboard air compressor, Pioneer Avic X940BT navigation, Accel backup camera.
    http://www.gmtruckclub.com/forum/sho...Silverado-2500
    1960 Land Rover Series II 88
    2001 Pontiac Sunfire
    2013 Toyota Avalon Limited (Wife's Car)
    NRA Life Member

  3. #3
    Sr. Apprentice
    Join Date
    Nov 2009
    Location
    Grandview, WA
    Posts
    68

    Default

    Sounds like A/c clutch pulley like a magnet came loose inside!

  4. #4

    Default

    I agree it has to be the A/C pulley, allowing it to jump like that.
    www.youtube.com/ippielb
    2002 Chevrolet Silverado 1500 z71 1985 Chevrolet Silverado k10 2006 Chevrolet Silverado 2500hd 6.6l LLY Duramax
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    BDS Dual Steering Stabilizers Pioneer Double-DIN Touchscreen Navigation with Two 10" Subs under rear seat
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  5. #5

    Default

    Thanks for the inputs ya'll..

    Probably a good idea just to replace the whole thing. I belive it was stamped either '92 or '96. don't want to invest the money on a few parts then have something else fail. Got any recs on somewhere with good prices? Usually go to Autozone or LMC.....but....
    TNT - Texas

    First - '68 longbed (lady runs stop sign, insurance gives me a check)
    Then - '81 SWB (stupid stupid stupid...sold it thinking I was going to get something else)
    Now - Finally got my '86 (350, Holley 600, 700r4)

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