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MBN Smoking

Discussion in 'Trucks [ Eighteen Wheelers ]' started by underpsi, Apr 18, 2011.

Page 4 of 4
  1. Apr 24, 2011 #31
    little cat 500

    little cat 500 Road Train Member

    2,055
    1,100
    Jan 17, 2010
    Abbottstown PA
    0
    mine don't smoke white but i didn't pull a load with it yet don't see why it would
     
    little cat 500, Apr 24, 2011
    little cat 500, Apr 24, 2011
    #31
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  3. Apr 24, 2011 #32
    forner

    forner Light Load Member

    62
    5
    Nov 3, 2009
    okc ok
    0
    Let me know who it goes...
     
    forner, Apr 24, 2011
    forner, Apr 24, 2011
    #32
  4. Apr 24, 2011 #33
    BUSY

    BUSY Bobtail Member

    38
    1
    Apr 22, 2011
    CORYDON IN
    0
    Got a quick post no smoke but r/r silicone hose to turbo today was gettn great bost with broken hose now pullin with about 25psi???any help all clamps intact..
     
    BUSY, Apr 24, 2011
    BUSY, Apr 24, 2011
    #33
  5. Apr 24, 2011 #34
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,041
    Dec 17, 2008
    0
    I've never seen this. You can also use the cam from a 6NZ engine with good results.
     
    Mr. Haney, Apr 24, 2011
    Mr. Haney, Apr 24, 2011
    #34
  7. Apr 24, 2011 #35
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,041
    Dec 17, 2008
    0
    The MBN engines boost is controlled electronically. The solenoid at the secondary fuel filter base opens and closes to actuate the wastegate on the turbo. If it's stuck in the open position it maybe allowing the wastegate to open too early
     
    Mr. Haney, Apr 24, 2011
    Mr. Haney, Apr 24, 2011
    #35
  8. Apr 27, 2011 #36
    BUSY

    BUSY Bobtail Member

    38
    1
    Apr 22, 2011
    CORYDON IN
    0
    thx again will check it out..
     
    BUSY, Apr 27, 2011
    BUSY, Apr 27, 2011
    #36
  9. Apr 27, 2011 #37
    BUSY

    BUSY Bobtail Member

    38
    1
    Apr 22, 2011
    CORYDON IN
    0
    sad part about this boost prob i saw a increase in mpg...
     
    BUSY, Apr 27, 2011
    BUSY, Apr 27, 2011
    #37
  10. Apr 27, 2011 #38
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,041
    Dec 17, 2008
    0
    Without full boost the ECM doesn't give full fuel at full throttle to the engine. Yes you may save fuel this way, but you don't have the hp the engine is capable of either.
     
    Mr. Haney, Apr 27, 2011
    Mr. Haney, Apr 27, 2011
    #38
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