Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › Rubber strips removal of aftercooler core on qsc 8.3

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  • May 11, 2019 at 4:58 am #69238

    Rob Baker
    Participant
    Vessel Name: Lucille
    Engines: Cummings QSC 8.3
    Location: Virginia
    Country: USA

    I have noticed some advocate removal of the four rubber vanes that run the length of the aftercooler core.

    Does anyone know why this practice is recommended?

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  • May 12, 2019 at 6:33 pm #69310

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

    Aftercooler Silicone "air bypass" strips

    Just an IMO——Silicone strips on aftercooler cores… — Just a “dream” that does not work in field service .. That is what matters, not what’s in the paper engineering and what could happen in a test cell environment under very controlled conditions…………

    Tony

    May 11, 2019 at 11:26 am #69254

    Rob Baker
    Participant
    Vessel Name: Lucille
    Engines: Cummings QSC 8.3
    Location: Virginia
    Country: USA

    Thanks

    I can agree with your comments. First time servicing AC core so your comment is much appreciated.

    May 11, 2019 at 10:06 am #69251

    Philip
    Participant
    Vessel Name: 2007 35ā€™ Cabo ā€˜FUGAā€™
    Engines: Cummins QSC8.3-540ā€™s
    Location: Long Beach, CA

    Next to impossible to get the core back in with the rubber strips and performance of the aftercooler is no affected by removal. Matter of fact some could argue that it keeps internal moisture and corrosion down by allowing any condensation that forms to freely escape.

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