Cummins Marine Diesel Repower Specialists › Forums › Cummins Marine Engines › 6CTA added CCV now I have valve cover blow by?

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  • February 13, 2020 at 2:46 pm #93552

    dnord2
    Participant

    I installed the SBmar CCV breathers/filters last year and instantly had oil blowing out the valve cover. Wears me out since everything has recently been painted. I made the hole in the bottle bigger, but its still doing it. Both motors.

    Any suggestions? Thank you

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  • February 18, 2020 at 11:37 am #93718

    dnord2
    Participant

    Theres a little bit of oil in each collection bottle.

    February 17, 2020 at 9:18 am #93663

    dnord2
    Participant

    Previous I had the walker air-sep, I added this after reading your site. Just seemed like a good upgrade, and the boots and fittings on the old set up were hammered. 800 hour motors, nothing mechanically wrong with them. (other than this new leak.)

    Thanks

    February 13, 2020 at 6:19 pm #93568

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

    Help is here, BUT:

    Send me good pics of the rest of the install…….Everything………..

    Something is wrong with the install, not the “system” design..

    No type of CCV system “creates” blow-by in itself when properly installed and maintained. ..

    Exactly what did you have BEFORE?

    Exactly why did you install a CCV system?

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