Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › What part is this? 6BTA

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  • February 4, 2018 at 2:33 pm #27839

    Grant Tankoos
    Participant
    Vessel Name: Palmetto
    Engines: Cummings 6BTA 5.9
    Location: Darien, CT
    Country: USA

    Took off the after cooler and these breathers were behind them – what are these and should they be serviced or replaced?

    Thanks!

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  • February 5, 2018 at 5:36 pm #27894

    Grant Tankoos
    Participant
    Vessel Name: Palmetto
    Engines: Cummings 6BTA 5.9
    Location: Darien, CT
    Country: USA

    Thanks Tom and Bill – i appreciate it~ i thought it was a breather, but wasn’t quite sure and didnt see it i the shop manual. ill check out SMX system for sure. Thanks again!

    February 5, 2018 at 5:00 pm #27891

    firehoser75
    Participant
    Engines: Cummins 6BTA M3-330 HP
    Location: Nanaimo, BC
    Country: Canada

    Grant,
    That is part of the installed Crankcase Ventilation system and the “filter” requires (at the minimum) cleaning annually. However, I concur with Bill, and you should read about the SMX Envirovent system, and replace what you have. Not only will it be a better system, but it will greatly simplify maintenance as the filter will be accessible instead of being behind your aftercooler.
    Tom Easterbrook

    February 4, 2018 at 4:22 pm #27841

    Bill Desmarais
    Moderator
    Vessel Name: Extremist
    Engines: Cummins 6BTA 370
    Location: Portsmouth, NH
    Country: United States
    Grant Tankoos wrote:

    Took off the after cooler and these breathers were behind them ā€“ what are these and should they be serviced or replaced?

    Thanks!

    I’ve owned five 6BTA 370s.
    On all five I’ve installed the SMX Envirovent System.

    EnviroVent CCV Kit 6BTA Series for In-line Drive Engines

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