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Cat 289c leak by injection pump

Discussion in 'Compact Track/Multi Terrain Loaders' started by bwbigred, Jan 12, 2021.

  1. bwbigred

    bwbigred Active Member

    Joined:
    Dec 6, 2012
    Messages:
    30
    Location:
    nj
    I have a cat 289c and I have a leak on the side of the injection pump. There is a small hose that goes to a cylindrical looking piece with a spring it almost smells like anti freeze any suggestions
     

    Attached Files:

  2. thepumpguysc

    thepumpguysc Senior Member

    Joined:
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    Occupation:
    Master Inj.Pump rebuilder
    Location:
    Sunny South Carolina
    Yes, it will smell like antifreeze, that’s what activates it.. it’s a cold start device..& works off the engine coolant..
    There’s not a whole lot u can do w the pump on the engine.. just not enough room..
     
  3. bwbigred

    bwbigred Active Member

    Joined:
    Dec 6, 2012
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    Location:
    nj
    Can I replace that piece it looks like it bolts on. It’s dripping pretty good while running and I can’t have that
     
  4. Simon C

    Simon C Well-Known Member

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    Occupation:
    Heavy Equipment Mechanic
    Location:
    Rocky Mountain House , AB.
    I think the Pump Guy SC is trying to say the injection pump has to come off to repair. Thats what it sounds like. They are heavily jammed into these units. Need to clean lots of dirt first before attacking any fuel injection pump or around any engine or hydraulic system. Simon
     
  5. thepumpguysc

    thepumpguysc Senior Member

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    U can try.. BUT
    U HAVE TO GET THE PUMP # off the side of the aluminum hsg inorder to get the right 1.
    Get the # FIRST..(before taking it off)
    Call your local pump shop, tellm u need the CSD ( cold start device)
    You’ll probably have to wait for delivery.
     
  6. heymccall

    heymccall Senior Member

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    2,533
    Location:
    White Oak, Pa
    Looks like a VE-3100 pump.
    Screenshot_20210113-161811_Chrome.jpg
     
  7. Simon C

    Simon C Well-Known Member

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    Occupation:
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    What does the cold start device technically do? Does it advance the timing only. Simon
     
  8. thepumpguysc

    thepumpguysc Senior Member

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    It either advances or retards the timing.. I don’t have the specs in front of me..
    It’s only used for starting.. & reduces the smoke..(epa)
     
  9. heymccall

    heymccall Senior Member

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    Looks like an Oring behind it. Screenshot_20210114-093144_Chrome.jpg
     
  10. thepumpguysc

    thepumpguysc Senior Member

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    U r correct.. it’ll b up to u to find out if it’s leaking at the large pump oring or the shaft that sticks out..
    If it’s the shaft, an oring probably won’t fix it.. it probably wore out the housing it rides in..
    Therefore u need to replace the assembly..
    Here’s to hoping it’s the big oring at the housing..
     
  11. Tyler d4c

    Tyler d4c Senior Member

    Joined:
    Mar 3, 2016
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    471
    Location:
    Salix Pa
    Any word on the success of the fix just discovered it is leaking on my 279c
     
  12. Tyler d4c

    Tyler d4c Senior Member

    Joined:
    Mar 3, 2016
    Messages:
    471
    Location:
    Salix Pa
    Pump number is 104742-3100
    Cold start device part number is 146361-6500
    0ring is 146600-0800
    Thepumpguysc can you verify the part numbers and order them?
     

    Attached Files:

  13. rmllarue91

    rmllarue91 Senior Member

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    Occupation:
    field technician
    Location:
    northeast pa
    Have seen these bypassed and they still started good I was there for other issues
     
  14. thepumpguysc

    thepumpguysc Senior Member

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    Master Inj.Pump rebuilder
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    Big Red/Tyler.. my supplier has them in-stock..
    Naturally you'll need a price but we should take it off the forum for that..
    Click on my screen name on the LEFT side of the page for contact info..