320 bilge blower vents

Discussion in 'Fiberglass/Wood/Gelcoat Repair' started by Mike sandor, Jul 8, 2019.

  1. Mike sandor

    Mike sandor Active Member GOLD Sponsor

    Jul 28, 2017
    Eau Claire, Wisconsin
    2007 320 Sundancer
    Twin 496. Bravo 3
    2018 3500 Chevy, Loadmaster trailer
    Raymarine Axiom, Quantum 2
    496 Mercruiser/Bravo III drives
    9E429176-8A58-4C96-A81B-5A0D8094C934.jpeg C97A118F-52B1-4D53-821F-54E41BC9CB91.jpeg both sides have has numerous coats of some type of caulking. I removed it from one of them. Question, do these joints need to be sealed? Sure looks better without the caulk.
  2. Ididntdoit

    Ididntdoit Well-Known Member GOLD Sponsor

    Dec 5, 2007
    Newport, RI
    300 Sundancer
    5.0MPI Bravo III
    What holds them on besides the caulk/adhesive?
  3. skolbe

    skolbe Active Member

    Oct 3, 2006
    St. Louis, MO
    320 Sundancer, Mercury 310 Sport Inflatable Tohatsu 6HP
    350 Mag V-Drive - Kohler 5ecd
    It is only held on with adhesive/caulk.
  4. Jeff42899

    Jeff42899 Member

    Jun 23, 2018
    Lake Erie Islands
    1999 340 Sundancer
    Twin 7.4 Horizon
    Aren't these the ones several members have been looking for because they fell off? I'd remove them and re-bed them in adhesive. The caulking can look much better than what yours did if they're lined with painters tape on both sides and some care is taken doing the job.
  5. KevinC

    KevinC Well-Known Member

    Feb 25, 2011
    Long Island, NY
    2004 340 Sundancer
    1988 Proline Center Console - 90hp Mariner/Mercury
    1969 Boston Whaler
    Twin 8.1 V-drives
    The vent covers are glued on big mount pads with adhesive underneath and caulking should not be that visible from above. That opening also helps to channel run off water coming down the gunnel.

    When I purchased my boat I requested that the vent (which was loose) be re-glued. The tech must not have known and tried filling the seam and it looked horrible. Finally after a couple of seasons I have most of the caulking out and off my non-skip there.


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