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Merc Tubitious - 5.0L (305) Bypass Pickup HELP

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    Merc Tubitious - 5.0L (305) Bypass Pickup HELP

    I know this has been discussed in other posts, but not necessarily as I am looking to do it. It looks like I need to put in a thru hull water pickup to bypass the Merc pickup hose in the lower unit to cool the engine. Looks like I have tubitous. Anyway, I’m looking for some help with a parts list (size of thru hull w/scoop, strainers, hoses, etc).

    Thinking of putting a “T” in place to leave the original pickup hose in place and working to help cool the drive rather than putting on a shower. Thoughts on this? Also would like to put in another “T” so I can fresh water rinse it from the “T.” If you have a pic of your setup along with the parts list I’d appreciate it.

    Thanks.
    "Relax Inn"
    2012; 255 SB Bayliner
    Venice, Fl
    prior boat:
    2011; 180 BR

    #2
    Tubitious? you mean Bravoitis? You have a Bravo?
    if so it’ll be 1 1/4” through hull & strainer etc. there’s a slick through hull to aid in the flushing via a garden hose.
    Dave
    Edmonds, WA
    "THE FIX"
    '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
    (.030 over-Vortec top end-part closed cooled)
    The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
    Misc. projects thread
    https://www.baylinerownersclub.org/f...56-gctid789773

    Comment


      #3
      Hey Dave - Bravoitis, tubitis same thing. Guessing you may have done this to your 2556? Anymore info would be appreciated esecially pics. And yes Bravo III with all the emission systems.
      "Relax Inn"
      2012; 255 SB Bayliner
      Venice, Fl
      prior boat:
      2011; 180 BR

      Comment


        #4
        I have not added the through hull or strainer. I simply repaired the Bravoitis condition during the rebuild of the gimbal housing. There are a few here that have made the conversion though. sketch, and lineman being the most recent I think. The pics in those threads may have vanished into a black hole during our last upgrade. If they don’t see this maybe sent out a couple PM’s
        Dave
        Edmonds, WA
        "THE FIX"
        '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
        (.030 over-Vortec top end-part closed cooled)
        The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
        Misc. projects thread
        https://www.baylinerownersclub.org/f...56-gctid789773

        Comment


          #5
          Here’s a pic I found of Doug’s 2452 with the added through hull and strainer including his DIY flush T.
          Click image for larger version

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          Dave
          Edmonds, WA
          "THE FIX"
          '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
          (.030 over-Vortec top end-part closed cooled)
          The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
          Misc. projects thread
          https://www.baylinerownersclub.org/f...56-gctid789773

          Comment


          • FredK
            FredK commented
            Editing a comment
            Is Doug still on the forum? The thru hull looks like it is in front of the engine, then to the left looks like a "T" for a flush valve or hose, then the strainer and I assume the other side goes to the sea pump. How would I contact Doug?

          #6
          Yep that’s how it’s plumbed. Haven’t seen Doug in quite a while but maybe send him a PM
          https://www.baylinerownersclub.org/m...-go-aweigh2452
          Dave
          Edmonds, WA
          "THE FIX"
          '93 2556 5.7 Bravo II 2.0:1 18 1/4x19 P
          (.030 over-Vortec top end-part closed cooled)
          The rebuild of my 2556 https://www.baylinerownersclub.org/f...76?view=thread
          Misc. projects thread
          https://www.baylinerownersclub.org/f...56-gctid789773

          Comment

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