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Do I need overhaul? Detroit 60 series 12.7

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Wajid8705, Jul 29, 2019.

Page 4 of 8
  1. Jul 30, 2019 #31
    Intothesunset

    Intothesunset Road Train Member

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    What year is engine?
    How many miles?
    If it's at 1 million it needs rebuild.
    Max oil interval recommended by Detroit when they made series 60 was 15000 miles.
    Keep running a loose series 60 and you risk punching a rod through block.
    Proper oil pressure on an rebuilt series 60 is 40psi low idle 75psi driving. Or about that when hot.
     
    Intothesunset, Jul 30, 2019
    Intothesunset, Jul 30, 2019
    #31
    Rideandrepair, Wajid8705 and x1Heavy Thank this.
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  3. Jul 30, 2019 #32
    x1Heavy

    x1Heavy Road Train Member

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    I wish to clairify the forgotten detail of changes and replacing OF engine oil in Detriot at 15K, all for it. Have at it. Change the oil, get old sample tested.

    I was thinking you are standing there fueling with three jugs of oil once or twice a month pouring into it.
     
    x1Heavy, Jul 30, 2019
    x1Heavy, Jul 30, 2019
    #32
    Rideandrepair and Wajid8705 Thank this.
  4. Jul 30, 2019 #33
    Frontman

    Frontman Light Load Member

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    75psi driving?

    Mine never ran higher than 48-50 driving, operating at normal engine temp.
     
    Frontman, Jul 30, 2019
    Frontman, Jul 30, 2019
    #33
    Rideandrepair, tommymonza, kemosabi49 and 3 others Thank this.
  5. Jul 30, 2019 #34
    Intothesunset

    Intothesunset Road Train Member

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    Was it freshly rebuilt?
     
    Intothesunset, Jul 30, 2019
    Intothesunset, Jul 30, 2019
    #34
    Wajid8705 Thanks this.
  7. Jul 30, 2019 #35
    Frontman

    Frontman Light Load Member

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    Never rebuilt.

    Not yet.. little over a million.
     
    Frontman, Jul 30, 2019
    Frontman, Jul 30, 2019
    #35
    Wajid8705 Thanks this.
  8. Jul 30, 2019 #36
    Bean Jr.

    Bean Jr. Road Train Member

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    Mine has new bearings and when it is cold it runs that high. Warm and it's closer to 60.
     
    Bean Jr., Jul 30, 2019
    Bean Jr., Jul 30, 2019
    #36
    Rideandrepair, Intothesunset, tommymonza and 2 others Thank this.
  9. Jul 30, 2019 #37
    Wajid8705

    Wajid8705 Light Load Member

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    Hot running is 50 psi
    Hot idle is 20 psi
     
    Wajid8705, Jul 30, 2019
    Wajid8705, Jul 30, 2019
    #37
    Rideandrepair, Intothesunset and tommymonza Thank this.
  10. Jul 30, 2019 #38
    Wajid8705

    Wajid8705 Light Load Member

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    Yes, that's what Detroit dealer told me that normal to add that much of oil.
    As far the smoke he said its 2002, older truck, so it will smoke.
    They didn't have the system that prints out charts from computer. Guy did the reading and fill them on to the paper.
     
    Wajid8705, Jul 30, 2019
    Wajid8705, Jul 30, 2019
    #38
    Rideandrepair and x1Heavy Thank this.
  11. Jul 30, 2019 #39
    Wajid8705

    Wajid8705 Light Load Member

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    Year 2002, over 2 million miles , seller said he done rebuilt 400000 miles ago but got no paperwork.
     
    Wajid8705, Jul 30, 2019
    Wajid8705, Jul 30, 2019
    #39
    Rideandrepair Thanks this.
  12. Jul 30, 2019 #40
    Wajid8705

    Wajid8705 Light Load Member

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    What's your pressure at idle?
     
    Wajid8705, Jul 30, 2019
    Wajid8705, Jul 30, 2019
    #40
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