Porthole leak? How to fix

Discussion in 'General Discussion' started by johna, Aug 15, 2011.

  1. dpmulvey

    dpmulvey New Member

    Dec 19, 2007
    Homeport: Charles City, VA
    1999/2007 330 Sundancer Hardtop.
    6.2 Merc Horixons
    1.5:1 Velvet Drives
    Stopping a leak involves sealing the origin. If the origin is bedding gone bad, the porthole needs to be re-bedded and nothing less will cure the problem. If the origin is at the dog screws, re-bedding the porthole without tightening the dog screws is equally as useless.
     
  2. Bob & Sue

    Bob & Sue Active Member

    Jun 3, 2011
    Browns Point Tacoma WA
    Sold 1999 270DA Sundancer
    5.7l Mercuiser
    Thanks for the info if you read my post it had a link in it to show how I was rebedding all my portlights.

    http://clubsearay.com/showthread.ph...h-New-Gaskets-amp-Screens?p=655536#post655536
     
  3. dpmulvey

    dpmulvey New Member

    Dec 19, 2007
    Homeport: Charles City, VA
    1999/2007 330 Sundancer Hardtop.
    6.2 Merc Horixons
    1.5:1 Velvet Drives

    Understand completely. Your situation required rebidding. The OP situation may not require such major surgery.

    He stated the dogs were loose. His dilemma may be a 15 minute fix, or a multi day one. The cure for each case needs to be decided on a case by case basis.

    to the OP. you stated the latches (dogs is the nautical term) were not tight. There is a small set screw 1/2 way up each one. They are what actually tighten the glass to the gasket. It's easy to miss if you are not looking for it. Try tightening those first before tearing out the entire porthole. That may solve your problem.
     
  4. MarketDave

    MarketDave New Member

    1
    Feb 4, 2018
    2005 Sea Ray Sundancer 260, GMC Yukon Denali (complete towing package with auto levelers
    ENGINE: 350 MAG MPI BR 3 ( 300 PHP ) MCM STERN DR.
    Just a heads up, I just tried the link you provided, they have changed that link, now it works at http://pompanettellc.com/ but that post was very helpful, thanks!
     
    tdschafer likes this.
  5. Jaybeaux

    Jaybeaux Active Member SILVER Sponsor

    287
    Jan 3, 2016
    Upper Potomac River
    420 Sundancer 2004
    Naught On Call
    Cummins 6CTA-8.3's with V-Drives
    9KW Onan Genset
    I'm curious about this product, Bed-it Butyl Tape, being used as a sealer between the windshield and the decks instead of using caulk, such as Sikaflex?

    Would it be an application or would the exposure to sunlight be a problem?

    Thoughts?

    Jaybeaux
     

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