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CM871 suddenly started using oil

Discussion in 'Trucks [ Eighteen Wheelers ]' started by BobbyTTour, Oct 16, 2013.

Page 1 of 3
  1. Oct 16, 2013 #1
    BobbyTTour

    BobbyTTour Light Load Member

    83
    24
    Nov 30, 2010
    Spring Hill, TN
    0
    We have a CM871 that was purchased with 440,000 miles and now has approximately 470,000 miles on it. It was using about a gallon of oil every 15,000 miles. Within the last two weeks, roughly 5,500 miles, the driver is having to had a gallon of oil about every 1,500-2,000 miles. Any ideas on what to look at first as the cause of the sudden oil consumption?
     
    BobbyTTour, Oct 16, 2013
    BobbyTTour, Oct 16, 2013
    #1
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  3. Oct 16, 2013 #2
    Ezrider_48501

    Ezrider_48501 Road Train Member

    3,845
    5,133
    Apr 2, 2011
    bismarck, nd
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    any external oil leaks?

    how about the air dryer is it spitting a lot of oil?
     
    Ezrider_48501, Oct 16, 2013
    Ezrider_48501, Oct 16, 2013
    #2
  4. Oct 16, 2013 #3
    BobbyTTour

    BobbyTTour Light Load Member

    83
    24
    Nov 30, 2010
    Spring Hill, TN
    0
    The driver says there aren't any leaks that he can see. Nothing on the ground and nothing that he sees on the block or trailing behind. There was no mention of the air dryer. We'll look at it when it comes in.

    The truck has an APU, so there's minimal idling with it. I talked to the local Cummins house and they weren't any help. All they said was to bring it in and they'd be glad to look at it.
     
    BobbyTTour, Oct 16, 2013
    BobbyTTour, Oct 16, 2013
    #3
  5. Oct 16, 2013 #4
    nasriza

    nasriza Road Train Member

    2,398
    2,074
    Feb 1, 2013
    Chicago, IL
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    oil cooler maybe ? check if coolant is clean
     
    nasriza, Oct 16, 2013
    nasriza, Oct 16, 2013
    #4
  7. Oct 16, 2013 #5
    BobbyTTour

    BobbyTTour Light Load Member

    83
    24
    Nov 30, 2010
    Spring Hill, TN
    0
    Driver said the coolant looked clean. My original thought was the rings, but surprised it would be such a quick change as apposed to a gradual change. With this being our first Cummins, and only truck with a DPF, I didn't know if there was a common or known issue with something like this happening.
     
    BobbyTTour, Oct 16, 2013
    BobbyTTour, Oct 16, 2013
    #5
  8. Oct 17, 2013 #6
    nasriza

    nasriza Road Train Member

    2,398
    2,074
    Feb 1, 2013
    Chicago, IL
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    Check the turbo to make sure as well i highly doubt its rings not that quick of a change
     
    nasriza, Oct 17, 2013
    nasriza, Oct 17, 2013
    #6
  9. Oct 17, 2013 #7
    Heavyd

    Heavyd Road Train Member

    7,804
    6,253
    Feb 4, 2009
    0
    Check the exhaust manifold where it bolts to the head for any signs of oil leakage from the exhaust port. Valve stem seals pop off their base and ride up the stem allowing oil to leak out the valve. Other than that, you need to have this looked at. You could be looking at worn or broken piston rings, scuffed liners allowing oil up past the rings and the engine is burning it.
     
    Heavyd, Oct 17, 2013
    Heavyd, Oct 17, 2013
    #7
  10. Oct 18, 2013 #8
    BobbyTTour

    BobbyTTour Light Load Member

    83
    24
    Nov 30, 2010
    Spring Hill, TN
    0
    We had the driver take the truck straight to the KW dealership to look at this issue and a couple of others. They're telling us that Cummins says 1 gallon of oil every 1500-2000 miles is normal. Really?!
     
    Last edited: Oct 18, 2013
    BobbyTTour, Oct 18, 2013
    BobbyTTour, Oct 18, 2013
    #8
  11. Oct 18, 2013 #9
    Heavyd

    Heavyd Road Train Member

    7,804
    6,253
    Feb 4, 2009
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    Their tolerances are pretty wide for things like that. No, not really normal. Engines will use some oil, but not 1 gallon that soon. Engines that are over full or low quality oil will burn rather quickly. Is this unit under warranty?
     
    Heavyd, Oct 18, 2013
    Heavyd, Oct 18, 2013
    #9
  12. Oct 18, 2013 #10
    WildHog

    WildHog Light Load Member

    101
    22
    Oct 13, 2011
    AR
    0
    Same driver or different one?

    Same driver something may be wrong.

    Different driver or new driver? stealing oil

    I had a oil filter come loose on an ISX once and it was of course leaking around the filter.

    Big puddle to go by under the truck and all over everything.

    There are only a few places the oil can go. Out the pipe or on the ground is a couple quickies. Is the truck smoking?

    Is the EGR still active?
     
    WildHog, Oct 18, 2013
    WildHog, Oct 18, 2013
    #10
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