Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Light White Smoke

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  • July 24, 2023 at 9:49 am #152062

    Frank Ketcham
    Participant
    Vessel Name: True Blue
    Engines: Cummins TBA 5.9
    Location: Sausalito
    Country: USA

    A survey reported “light white smoke at all RPMs on right engine”. Granted (both) my 1999 6BTA 5.9s do seem to have a little more smoke than I would like. What would be the trouble shooting sequence for this? 

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  • September 4, 2023 at 6:51 am #153993

    Tony Athens
    Moderator
    Vessel Name: Local Banks
    Engines: QSB 6.7 550 HP
    Location: Oxnard, CA
    Country: USA

    White smoke–

    If at low RPM’s and loads, be sure you coolant stays above 16o-ishF

    If at high speed/loads raw water flow and / or mixer design as that could be steam

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