Leaking front hatch

Discussion in 'Sport Cruisers' started by Harry Harris, Aug 15, 2020.

  1. Harry Harris

    Harry Harris New Member

    Oct 29, 2019
    St Hubert’s Is. NSW Australia
    300 Sundancer 2006 5.0 MPI B3
    Pair mercruiser 5.0L efi closed cooled w/ Bravo 3 drives
    ‘06 300DA front hatch is leaking. It drips out of the front left corner even for a long time after rain stops. I’m going to replace the gasket tomorrow. Can anyone confirm that’s likely to be the problem as I’m worried I might have to reseal the whole hatch to deck? Thanks.
  2. firecadet613

    firecadet613 Well-Known Member

    May 10, 2007
    '07 V358
    T- VP 5.7GXi
    If it's original, not a bad idea to remove all the hatches and rebed them with LifeCalk.

    I have an '07 and when she's hauled out in two months, will be rebedding mine as preventative maintenance. Before it goes back in, I'll be adding some West Systems epoxy, sealing the balsa coring.
    Last edited: Aug 15, 2020
    Harry Harris likes this.
  3. sbw1

    sbw1 Well-Known Member

    Oct 10, 2006
    West Michigan
    This is listed in my signature
    This is listed in my signature
    cruisng pix and  eric and mandy 012.jpg
    Resealing the whole hatch is very easy to do. These hatches are easily removed and you will very likely save yourself headaches in the future by sealing the balsa core edges and protecting them from rot. Rot around hatches is a common but easily prevented issue. Do the right thing.
    Harry Harris likes this.
  4. Captain Allen

    Captain Allen Member

    Feb 2, 2009
    Coastal North Carolina
    370 EC 1994
    454 Mercruisers, straight drives
    I had a similar problem years ago. I found that lubricating the gasket with plumber's grease (silicone, not petroleum) cured my problem. It allowed the gasket to move with the deck and hatch lid when flexing.
    Harry Harris likes this.

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