noise in gear train cat c-15

Discussion in 'Peterbilt Forum' started by Gear head, Apr 12, 2012.

  1. Gear head

    Gear head Medium Load Member

    532
    91
    Apr 1, 2012
    Belair,md
    0
    Anyone ever have noise in geartrain area sounds like aircompressor but changed aircompressor same noise. You can hear the noise when aircompressor is unloaded but louder when compressor is loaded. sounds almost like a rod knock but ive pulled the pan down checked ristpins the best i could replaced both rods and mains. I also ran the overhead. It is a cat c-15 bxs engine.:biggrin_25510:Also checked for broken rocker arm and vva housing bolts and studs.
     
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  3. graham

    graham Bobtail Member

    5
    2
    Sep 3, 2011
    gardnerville,nv.
    0
    io have a c15 sounded like a card in the spokes of a bike had broken bolt holding turbo to exhaust man.
     
  4. mark concha

    mark concha Bobtail Member

    2
    0
    Jun 14, 2012
    0
    broken or hairline crack so i know what to look for
     
  5. truckerjc

    truckerjc Bobtail Member

    41
    7
    Oct 13, 2011
    hoxie,kansas
    0
    I had the bolts on idler gear come loose once . pulled peanut cover off and put new bolts in.noise went away.
     
  6. doublew

    doublew Light Load Member

    68
    7
    Oct 17, 2010
    Kansas
    0
    did you figure it out cause i have the same noise in mine....
     
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