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12.7 Detroit adding jakes

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Pete0377, Apr 16, 2024.

  1. Apr 16, 2024 #1
    Pete0377

    Pete0377 Bobtail Member

    4
    0
    Apr 16, 2024
    0
    Bought a 99 pete with a 12.7 Detroit. It’s not the original motor and the motor did not come with Jake’s. I’m wanting to add Jake’s and need help on deciding which Jake’s I need for the motor.
    06R0505674
    6067MK60
     
    Pete0377, Apr 16, 2024
    Pete0377, Apr 16, 2024
    #1
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  3. Apr 17, 2024 #2
    MRMTRANS

    MRMTRANS Light Load Member

    259
    293
    Apr 28, 2015
    0
    Model #770 came on 1999 MKs, as you can see on the uploaded file. I believe model 790 will work as well because the injector, intake, & valve adjustments are the same for both engines. I'd go by the camshaft # to be sure. 790s are stronger than 770s because the lash is larger. Are you looking for engine brakes? I have both 2 piece and 3 piece Detroit engine brakes just sitting in my shop that I've kept around after parting unusable blocks. I would have to check model #s. I'll sell them dirt cheap.
     

    Attached Files:

    MRMTRANS, Apr 17, 2024
    MRMTRANS, Apr 17, 2024
    #2
  4. Apr 17, 2024 #3
    Pete0377

    Pete0377 Bobtail Member

    4
    0
    Apr 16, 2024
    0
    Yes looking to buy Jake’s. I just didn’t know which ones I needed so that helps a lot
     
    Pete0377, Apr 17, 2024
    Pete0377, Apr 17, 2024
    #3
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