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Cabo 35’ water intrusion

Discussion in 'Technical Discussion' started by Cabo35’RI, Sep 17, 2026 at 9:18 PM.

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  1. Cabo35’RI, Sep 17, 2026 at 9:18 PM
    #1
    Cabo35’RI

    Cabo35’RI New Member

    Joined:
    Oct 16, 2021
    Messages:
    1
    Location:
    Watch Hill RI
    I have 2002 35’ Cabo Express. Having sea water intrusion only when underway. Nothing at the slip. New dripless shaft seals, new rudder shaft seals. Bellows on mufflers not leaking. Thru hulls & seacocks appear ok. No intrusion in the engine room or forward bilge area. Appears to be coming from aft area and will migrate to engine room when coming off plane. On a typical 4-6 outing I get about 3-4 gallons. Had my diesel mechanic on board for 2 hours underway and we are stumped. Help!!!!
  2. MBY, Sep 17, 2026 at 10:24 PM
    #2
    MBY

    MBY Senior Member

    Joined:
    Dec 17, 2009
    Messages:
    121
    Location:
    Newport Beach, CA
    Pull the fishboxes and go do another run. Could be a leak on one of the bellows perhaps
    Capt Ralph likes this.
  3. Capt Ralph, Sep 17, 2026 at 10:33 PM
    #3
    Capt Ralph

    Capt Ralph Senior Member

    Joined:
    Sep 8, 2004
    Messages:
    14,524
    Location:
    Satsuma, FL
    In another site I was trying to offer;
    Water coming the engine room vents and not draining out properly.

    I think MBY has a better idea than mine.
    Last edited: Sep 17, 2026 at 10:39 PM