Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Oil analysis

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  • March 11, 2022 at 10:20 am #128480

    Jeff Schaefer
    Participant
    Vessel Name: None
    Engines: 2
    Location: HB
    Country: United States

    My Oil analysis came back with this flag: CHROME, IRON AND ALUMINUM ARE HIGH AND MAY INDICATE PISTON RING, LINER AND PISTON WEAR.

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  • March 12, 2022 at 9:33 am #128536

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

    Go fishing and think about servicing the highest maintenance part on your engine.Ā  The saltwater cooled aftercooler if you operate is saltwater–It’s been 11 yrs & low engine hours mean nothing…………..

    EngineĀ  GPH at 1800-1900 Cruse RPM is ??Ā 

    Post some pics of your exhaust systemĀ  no close ups–need to see it all

    March 12, 2022 at 5:24 am #128532

    Jeff Schaefer
    Participant
    Vessel Name: None
    Engines: 2
    Location: HB
    Country: United States

    Sorry for the limited information. This is a 2003 SeaRay 480 Sedan bridge with 2 QSM11s. The oil analysis is after 1 year of our ownership. I have no knowledge of past ownership information. No symptoms of any kind with either engine. No smoke on start up. As an airplane owner, oil analysis is routine. Thanks for your help.

    March 11, 2022 at 3:02 pm #128494

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

    I guess we all must have a crystal ball…

    What exact engine?

    Complete history of operation ?Ā  Yours and of past owners.

    Any operating symptoms that would make to take an oil analysis?Ā 

    Past history of oil analysis?

     

     

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