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Cummins isx worth fixing?

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Vivaspin, Jan 9, 2021.

  1. Jan 9, 2021 #1
    Vivaspin

    Vivaspin Bobtail Member

    27
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    Oct 2, 2020
    0
    Not a good week for me

    Fuel pump blown on my isx cm871...

    pulled off the valve cover and this is how it looks 77C68A25-DDC5-4990-ADEA-70496DCF204D.jpeg

    Prostar with 900k miles. Towed it to the shop and now im just debating if its worth the fix.

    Has had inframe overhaul by previous owner about 300k miles ago. Truck always was good and pulling strong. No coolant or oil leaks...

    i imagine this to be the fix: new head, headgasket, new fuel pump and fuel pump housing gasket...

    Am i missing something? I am also afraid that any debris might be sucked into the engine? What are u guys experience with this type of fuel pump failure?
     
    Vivaspin, Jan 9, 2021
    Vivaspin, Jan 9, 2021
    #1
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  3. Jan 9, 2021 #2
    Vivaspin

    Vivaspin Bobtail Member

    27
    8
    Oct 2, 2020
    0
    1ACA5524-2B3C-4045-B3A8-4E7E4965D27D.jpeg
     
    Vivaspin, Jan 9, 2021
    Vivaspin, Jan 9, 2021
    #2
  4. Jan 9, 2021 #3
    haycarter

    haycarter Road Train Member

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    I Think It will depend on how Much You're In love with (Or in Debt to) the Truck ? on your course of Action.!

    If It was Mine (Which It Isn't) It would be either a S/H Motor from a salvage yard or a Full Out of Chassis Rebuild, depending My Bank Balance on the Day..
     
    haycarter, Jan 9, 2021
    haycarter, Jan 9, 2021
    #3
    spsauerland Thanks this.
  5. Jan 9, 2021 #4
    magoo68

    magoo68 Road Train Member

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    st malo mb canada
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    Pull a main bearing and check condition if the pump debris went through everything it’s a full rebuild
     
    magoo68, Jan 9, 2021
    magoo68, Jan 9, 2021
    #4
    BoxCarKidd, spsauerland and haycarter Thank this.
  7. Jan 9, 2021 #5
    Ridgeline

    Ridgeline Road Train Member

    20,732
    101,020
    Dec 18, 2011
    Michigan
    0
    I think you answered your own question.
    If I was you ... i would have the pan dropped to see what is in it. May be not much other than a good cleaning out of the pan and a new pump.
     
    Ridgeline, Jan 9, 2021
    Ridgeline, Jan 9, 2021
    #5
  8. Jan 9, 2021 #6
    Goodysnap

    Goodysnap Road Train Member

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    Ouch!!!! Dont forget, no core for the broken head casting. Probably a cam too.
     
    Goodysnap, Jan 9, 2021
    Goodysnap, Jan 9, 2021
    #6
  9. Jan 9, 2021 #7
    Vivaspin

    Vivaspin Bobtail Member

    27
    8
    Oct 2, 2020
    0
    Bought the truck for 10k and put around 2k into it. Imma just sell it as is or part out
     
    Vivaspin, Jan 9, 2021
    Vivaspin, Jan 9, 2021
    #7
  10. Jan 9, 2021 #8
    haycarter

    haycarter Road Train Member

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    Australia
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    Buy another one & use the Old one as a "spare parts" department.... Just a Thought..
     
    haycarter, Jan 9, 2021
    haycarter, Jan 9, 2021
    #8
    magoo68 Thanks this.
  11. Jan 11, 2021 #9
    TTNJ

    TTNJ Heavy Load Member

    704
    954
    Nov 21, 2017
    0
    My opinion is Engine is worth repairing but it probably isn’t worth putting back in that Truck.
     
    TTNJ, Jan 11, 2021
    TTNJ, Jan 11, 2021
    #9
  12. Jan 14, 2021 #10
    AKDoug

    AKDoug Medium Load Member

    323
    800
    Mar 21, 2018
    0
    That shrapnel went all the way through the engine. It is time for a total out of the truck rebuild. Then you have to be dang sure you got every bit of the metal. This is a known issue with 871's and that is why many recommend replacing the fuel pump guts on them and newer ISX's every 400K miles.
     
    AKDoug, Jan 14, 2021
    AKDoug, Jan 14, 2021
    #10
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