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FUEL IN OIL 2010 CUMMINS ISC 8.3

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Kawi027, Feb 22, 2018.

Page 9 of 17
  1. Mar 17, 2018 #81
    Kawi027

    Kawi027 Light Load Member

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    Apr 22, 2013
    LAS VEGAS, NV
    0
    DDE75A46-1F7C-4D33-BF5A-17BC4384BBF2.jpeg
     
    Kawi027, Mar 17, 2018
    Kawi027, Mar 17, 2018
    #81
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  3. Mar 17, 2018 #82
    Goodysnap

    Goodysnap Road Train Member

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    It can be really difficult to get the crossdrillings clean for the egr delta sensor and sometimes I just remove the intake housing and put it in the parts washer. Clean out the heavy carbon from the crossdrillings with a drill bit by hand or with a pair of pliers and follow up with a rifle brush or pipecleaner for best results. Look for the Allen plug to remove at the end of the port for ease of cleaning. While you have the intake off, I suck the carbon off the intake heater with shop vac and a nylon brush to keep the chunks from going in the engine. I don't use any chemical cleaners other than mineral spirits and blow dry after cleaning. I have heard good results from easy-off oven cleaner but never tried it.

    How exactly did you, "fix" the dpf port? Just curious....
     
    Goodysnap, Mar 17, 2018
    Goodysnap, Mar 17, 2018
    #82
    spsauerland and Kawi027 Thank this.
  4. Mar 17, 2018 #83
    Kawi027

    Kawi027 Light Load Member

    100
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    Apr 22, 2013
    LAS VEGAS, NV
    0
    Thanks for the cleaning tips.
    I fixed the dpf port by grinding off the chunks of broken thread from the old mount that cracked till it was flat and smooth.
    Took a piece of short pipe with female threads and put 3 good spot welds on it where the broked threads were.
    Screwed in the sensor and we were good to go.
    Ill post a picture of the work and post Monday.
     
    Kawi027, Mar 17, 2018
    Kawi027, Mar 17, 2018
    #83
    spsauerland Thanks this.
  5. Mar 17, 2018 #84
    spsauerland

    spsauerland Road Train Member

    4,296
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    May 31, 2010
    West Harrison, In
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    Very important to get those EGR Delta P orfices cleaned out. That sensor not only plays vital role in EGR flow calculations, but help calculate total volume of air flowing through engine for a/f ratio control, soot modeling for DPF, and even dosing for SCR. EGR is by far still the biggest root cause of most issues on emissions engines. You see firsthand how nasty it is and once everything gets soot packed the ECM makes adjustments for feedback that is false, usually resulting in more soot production. Gotta keep keep those air management sensors clean for it all to work right. Don't forget to check exhaust back pressure sensor, sensing tube, and mounting block on engine. The tube comes right off exhaust manifold.
     
    spsauerland, Mar 17, 2018
    spsauerland, Mar 17, 2018
    #84
    Kawi027 Thanks this.
  7. Mar 18, 2018 #85
    Kawi027

    Kawi027 Light Load Member

    100
    23
    Apr 22, 2013
    LAS VEGAS, NV
    0
    When I pull the the egr valve off to clean out the delta p orifices and egr valve, do I need to buy any gaskets to reinstall the egr valve?
    Also today i cleaned out the exhaust back pressure sensor as well as the sensing tube off the manifold.
    Thanks again
     
    Kawi027, Mar 18, 2018
    Kawi027, Mar 18, 2018
    #85
  8. Mar 18, 2018 #86
    Goodysnap

    Goodysnap Road Train Member

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    Yes,

    Reusing gaskets will only cause leaks and more troubles.
     
    Goodysnap, Mar 18, 2018
    Goodysnap, Mar 18, 2018
    #86
    Kawi027 Thanks this.
  9. Mar 19, 2018 #87
    Kawi027

    Kawi027 Light Load Member

    100
    23
    Apr 22, 2013
    LAS VEGAS, NV
    0
    CB1A8326-9262-4D4F-A08E-3ECCCF99F3EE.jpeg
    Heres a pick of the fixed bung
     
    Kawi027, Mar 19, 2018
    Kawi027, Mar 19, 2018
    #87
  10. Mar 20, 2018 #88
    Kawi027

    Kawi027 Light Load Member

    100
    23
    Apr 22, 2013
    LAS VEGAS, NV
    0
    Is there anyway to clean the delta p orifice without removing the egr valve? Or would this cause more issues with soot possibly falling into the intake housing? I ordered and am waiting for the gaskets, but wanted to know in the mean time.
     
    Kawi027, Mar 20, 2018
    Kawi027, Mar 20, 2018
    #88
  11. Mar 20, 2018 #89
    Goodysnap

    Goodysnap Road Train Member

    3,718
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    Jul 12, 2017
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    No. You need to see that the ports are clear all the way through the intake. To do this the egr valve needs to be off minimum. I have the snap on 5.5mm scope and the head just fits in the ports to ensure they are clear without removing the intake. Most times the intake is coming off for a thorough cleaning. On really bad engines with high idle time I have had them plug up again in short order if not cleaned up well so take the time to get it all spotless.
     
    Goodysnap, Mar 20, 2018
    Goodysnap, Mar 20, 2018
    #89
    spsauerland and Kawi027 Thank this.
  12. Mar 25, 2018 #90
    Kawi027

    Kawi027 Light Load Member

    100
    23
    Apr 22, 2013
    LAS VEGAS, NV
    0
    84E954DB-F5FD-4841-BFBC-60D90A570A66.jpeg A67F5783-35C5-4A22-91A6-0F356F65068A.jpeg DAD8EDBC-3900-4297-8AA7-935DF722E205.jpeg 1890C5E9-1F0F-48C8-9CD7-E3020F5A5C75.jpeg 076C3039-DC0F-4B98-9176-93E3013E1A1F.jpeg C16F2507-07E3-407C-AD37-EEDFC464DDA7.jpeg 94CA9E23-7000-47AA-904A-E29050CA52BC.jpeg Remove the exhaust and did the snap excell test, no black smoke whatsoever. Took apart and cleaned the egr valve and air connection that the egr valve connects to. (both were extremly sooted)! Cleaned all orifices out vey well. Couldnt install pressure relief valve ( didnt get the new washer with it, have to order separate). I will report back when we install the pressure relief valve and run the injector performance test. Found a blown exhaust manifold gasket that is starting to screech, going to install new gaskets next weekend. Not sure if that is contributing to my issues.
     
    Kawi027, Mar 25, 2018
    Kawi027, Mar 25, 2018
    #90
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