my engine made a big noise and now it sounds weird

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by loginix, Nov 22, 2022.

  1. loginix

    loginix Bobtail Member

    12
    6
    Aug 13, 2012
    0


    If anyone has experience this
    Cat C12
     
  2. Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  3. lilillill

    lilillill Sarcasm... it's not just for breakfast

    5,642
    13,450
    Nov 7, 2007
    Possum Booger, Alabama
    0
  4. loginix

    loginix Bobtail Member

    12
    6
    Aug 13, 2012
    0
    Update: after removing 3 buckets of oil and it smells like diesel, I don't see any metal in the oil pan.
     
  5. D.Tibbitt

    D.Tibbitt Road Train Member

    18,207
    120,817
    Apr 26, 2013
    Gettin' down westbound
    0
  6. lilillill

    lilillill Sarcasm... it's not just for breakfast

    5,642
    13,450
    Nov 7, 2007
    Possum Booger, Alabama
    0
    What about under the rocker covers? That sounds like valve train.
     
    Brettj3876 and D.Tibbitt Thank this.
  7. AModelCat

    AModelCat Road Train Member

    25,649
    131,759
    Jul 7, 2015
    Canuckistan
    0
    I'd yank the valve covers and take a look. If there's diesel in the pan I wonder if an injector broke? Maybe a rocker snapped and took out an injector?
     
    Magoo1968, lilillill and D.Tibbitt Thank this.
  8. loginix

    loginix Bobtail Member

    12
    6
    Aug 13, 2012
    0
    That's what we think happened were taking it apart now
     
    D.Tibbitt Thanks this.
  9. loginix

    loginix Bobtail Member

    12
    6
    Aug 13, 2012
    0
    I will update you all
     
    D.Tibbitt Thanks this.
  10. loginix

    loginix Bobtail Member

    12
    6
    Aug 13, 2012
    0
    Busted injector was the issue. Thanks guys
     
  11. Magoo1968

    Magoo1968 Road Train Member

    1,077
    2,896
    Mar 18, 2021
    St Malo mb
    0
    C12’s are notorious for rocker issues . Gotta keep up on valve adjustment or something breaks .. mine has a old PP file in it and bigger turbo it walks all over our DD15’s set at 515 hp . I’m within .5 mpg every quarter . Best little engine I ever drove other than jake brake being a bit weaker .
     
  • Truckers Report Jobs

    Trucking Jobs in 30 seconds

    Every month 400 people find a job with the help of TruckersReport.

  • Draft saved Draft deleted