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ISX Cylinder liner sinking causing head gasket failure

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Truck engine machinist, May 2, 2020.

Page 2 of 4
  1. May 11, 2020 #11
    Truck engine machinist

    Truck engine machinist Light Load Member

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    If you measure the counterbores, you may find that they are not worn much. If they are within. 001" from side to side, I can sell you stainless steel shims, that will replace the crap brass ones on the new liner, and you do not have to have the counterbores cut. (.014" liner protrusion)
     
    Truck engine machinist, May 11, 2020
    Truck engine machinist, May 11, 2020
    #11
    KB3MMX, Shawn2130 and spsauerland Thank this.
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  3. May 11, 2020 #12
    spsauerland

    spsauerland Road Train Member

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    So basically you offer a .036 stainless steel shim? Seems like a more cost effective root to go if counterbores aren't fretted. Assuming you have six packs of them ready to be shipped?
     
    spsauerland, May 11, 2020
    spsauerland, May 11, 2020
    #12
    KB3MMX and Shawn2130 Thank this.
  4. May 13, 2020 #13
    FoolsErrand

    FoolsErrand Road Train Member

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    Why on earth did cummins spec such a soft metal in such an extreme cyclic loading location?
     
    FoolsErrand, May 13, 2020
    FoolsErrand, May 13, 2020
    #13
    KB3MMX and Shawn2130 Thank this.
  5. May 13, 2020 #14
    Shawn2130

    Shawn2130 Heavy Load Member

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    Likely an experiment. Instead of using money to do a lot of R&D, let the customers be the R&D mules at their own expense.

    Hypothetically speaking...
     
    Shawn2130, May 13, 2020
    Shawn2130, May 13, 2020
    #14
  7. May 14, 2020 #15
    Truck engine machinist

    Truck engine machinist Light Load Member

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    Cummins got away with brass in the N14, because, the liners were a press fit, in the block. The ISX liners, have .005" clearance, at the counterbore, and the counterbores are about 5" down in the liner, which is greatly affected by the piston thrust during combustion. Lugging the engine, makes it even worse.
     
    Truck engine machinist, May 14, 2020
    Truck engine machinist, May 14, 2020
    #15
    KB3MMX, FoolsErrand, Shawn2130 and 1 other person Thank this.
  8. May 14, 2020 #16
    Shawn2130

    Shawn2130 Heavy Load Member

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    Is the X15 the same setup as the ISX?
     
    Shawn2130, May 14, 2020
    Shawn2130, May 14, 2020
    #16
  9. May 14, 2020 #17
    Truck engine machinist

    Truck engine machinist Light Load Member

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    I do not know. I also am curious.
     
    Truck engine machinist, May 14, 2020
    Truck engine machinist, May 14, 2020
    #17
    Shawn2130 Thanks this.
  10. May 14, 2020 #18
    410Truckin

    410Truckin Bobtail Member

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    Where can i purchase? I am in Westminster,Md
     
    410Truckin, May 14, 2020
    410Truckin, May 14, 2020
    #18
  11. May 14, 2020 #19
    Truck engine machinist

    Truck engine machinist Light Load Member

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    Call me. 717-368-8532
     
    Truck engine machinist, May 14, 2020
    Truck engine machinist, May 14, 2020
    #19
    KB3MMX and spsauerland Thank this.
  12. May 15, 2020 #20
    FoolsErrand

    FoolsErrand Road Train Member

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    I think youre saying the N14 sleeve is an interference fit between the base of the liner and the block register while the isx is a drop in/pull out loose floating liner?

    If so are they using Orings to seal the water jack? How is the ISX about coolant leaks from the base and cracked liners? What about sunken liners and subsequent HG leaks?
     
    FoolsErrand, May 15, 2020
    FoolsErrand, May 15, 2020
    #20
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