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Installing new drain tube in the transom

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  • Installing new drain tube in the transom

    Hey all,

    Sorry if there is already a post on this, but i give up trying the search, I can put in 20340983 words and it still says:

    "The search term you specified (a) is under the minimum word length (2) and therefore will not be found. Please make this term longer. "

    So I gave up trying...

    Anyway,

    Just finishing my rebuild, and I need to install the new drain tube in the transom... Everyone I can find at the marine supply is flared on one side, and not the other... (obviously cant stick it through the hole if both sides are flared), but that leads me to my problem...

    My questions are:

    1. How do you set it in place and keep it there? (silicone, set it in fiberglas resin?)
    2. Is there a way to flare the un-flared side to make it appear finished on both ends?
    2a. If yes, how do you do it?
    2b. If no, then how do you seal or finish off the unflared side?

    Thanks in advance for your help!
    Thanks,
    Num

    1978 - Aquasport "Xscape" 190BR, 78' 175hp Evinrude (Newest edition)
    My Aquasport Rebuild
    1985 - 15' Riviera BR (converted to Fish), 76' 75HP Johnson "Stinger"
    (STILL a work in progress)
    My Riviera Rebuild


  • #2
    Re: Installing new drain tube in the transom

    That type of drain tube requires a special tool that can flare and crimp the non crimped side once you've set it into the transom. The best thing you can do for yourself when you install it though, is to seal it up with 3M marine adhesive ( 4200 or 5200 ) before you crimp it.

    If you have a boat shop that does fiberglass repairs, you can probably have them crimp it for a small charge if you don't want to buy a tool if you can't find one to rent.
    my thread here,My Shareproject page,Part 1,Part 2,Part 3,Part 4
    Official Tri Hull Club thread

    Comment



    • #3
      Re: Installing new drain tube in the transom

      Click on the "boat parts & accessories" link above and then type "drains" in the search window. Many different types and styles including the drain tube style you're talking about.
      '76 Fiberform Custom 18
      Volvo AQ130D/280

      Comment



      • #4
        Re: Installing new drain tube in the transom

        You don't need a special tool. Here is how I have done it for splashwell drains.

        1. Measure tickness of transom where tube goes.
        2. Trim tube to 1/8" to 3/16" longer than you measured in step 1
        3. Coat tube with 3m 5200 and insert into hole. I insert from inside.
        4. Clamp tube in place using 2 clamps and a 2x4 with the clamps on either side of the tube.
        5. The other side of the tube should be unobstructed.
        6. Now take a steel bar a little smaller than the inside of the tube and a hammer and work the protruding end down to form a flange
        7. clean up the 5200 that squeezes out
        8. done.
        1988 Sea Ray Seville 16 BRO w/1997 Mariner 115
        My build thread
        My upholstery thread

        Comment



        • #5
          Re: Installing new drain tube in the transom

          Originally posted by redfury View Post
          That type of drain tube requires a special tool that can flare and crimp the non crimped side once you've set it into the transom. The best thing you can do for yourself when you install it though, is to seal it up with 3M marine adhesive ( 4200 or 5200 ) before you crimp it.

          If you have a boat shop that does fiberglass repairs, you can probably have them crimp it for a small charge if you don't want to buy a tool if you can't find one to rent.
          OK thanks for the information... sadly I do not have the tool, no place to rent one, and no boat shop anywhere nearby...

          Originally posted by 109jb View Post
          You don't need a special tool. Here is how I have done it for splashwell drains.

          1. Measure tickness of transom where tube goes.
          2. Trim tube to 1/8" to 3/16" longer than you measured in step 1
          3. Coat tube with 3m 5200 and insert into hole. I insert from inside.
          4. Clamp tube in place using 2 clamps and a 2x4 with the clamps on either side of the tube.
          5. The other side of the tube should be unobstructed.
          6. Now take a steel bar a little smaller than the inside of the tube and a hammer and work the protruding end down to form a flange
          7. clean up the 5200 that squeezes out
          8. done.
          Also thanks for the information, but only 1 of the 2 tubes is in the splashwell, the other is the bottom of the transom, and I have no way to "clamp" it in place that I can see or think of...


          Originally posted by PiratePast40 View Post
          Click on the "boat parts & accessories" link above and then type "drains" in the search window. Many different types and styles including the drain tube style you're talking about.

          Thanks... I decided to go with this:
          http://www.iboats.com/Injection_Mold...view_id.341807

          Since it looks like its 2 piece and would be easiest to install... now that leads to a new (but related) question...

          This is just a small (15ft) fiberglass bowrider... do you think this type of plastic two-piece tube setup would be ok for the bildge/transom drain to the outside? (Im not really worried about the splashwell), but I'm wondering if this would leak excessively below the water line??
          Thanks,
          Num

          1978 - Aquasport "Xscape" 190BR, 78' 175hp Evinrude (Newest edition)
          My Aquasport Rebuild
          1985 - 15' Riviera BR (converted to Fish), 76' 75HP Johnson "Stinger"
          (STILL a work in progress)
          My Riviera Rebuild

          Comment



          • #6
            Re: Installing new drain tube in the transom

            You can get a fine seal with that below the water line, just use some 3M 4200 sealant/adhesive and goop a good part of it around in the hole and on the tube and install! Just make sure you have a throw away rag like a dishtowel and some acetone to clean up the mess.

            I'm currently using a cheap garboard style drain made out of plastic because the local place wanted $27 for the brass one . I drilled the hole with a forstner bit, shoved some 4200 in the hole and smeared it around with my finger a bit, put some more on the drain and shoved it in there. Sealed the screw holes with some more, installed the screws and wiped it all down with some acetone. For now, I've got a good drain that I'm not worried about. I'll put in a nice stainless steel one once I get to the point where I can actually use my boat.
            my thread here,My Shareproject page,Part 1,Part 2,Part 3,Part 4
            Official Tri Hull Club thread

            Comment



            • #7
              Re: Installing new drain tube in the transom

              Originally posted by Numlaar View Post
              Hey all,

              Sorry if there is already a post on this, but i give up trying the search, I can put in 20340983 words and it still says:

              "The search term you specified (a) is under the minimum word length (2) and therefore will not be found. Please make this term longer. "

              So I gave up trying...

              Anyway,

              Just finishing my rebuild, and I need to install the new drain tube in the transom... Everyone I can find at the marine supply is flared on one side, and not the other... (obviously cant stick it through the hole if both sides are flared), but that leads me to my problem...

              My questions are:

              1. How do you set it in place and keep it there? (silicone, set it in fiberglas resin?)
              2. Is there a way to flare the un-flared side to make it appear finished on both ends?
              2a. If yes, how do you do it?
              2b. If no, then how do you seal or finish off the unflared side?

              Thanks in advance for your help!


              You are looking for the Moller Flanging tool, 1" Part # MOE-2070000
              or 1 1/4" MOE-2070400 you can find them here or at Jamestown Distributors

              http://www.**************************...=9550&SHOPPING

              Comment



              • #8
                Re: Installing new drain tube in the transom

                Originally posted by redfury View Post
                I'm currently using a cheap garboard style drain made out of plastic because the local place wanted $27 for the brass one
                I use and would recommend garboard.Used epoxy to seal it up tight.

                BassPro has them for $5.99
                Item#38-586-646-00
                Threaded Garboard Drain and Plug is made of brass. Drain requires a 1'' diameter installation hole. Plug fits standard 1'' drains.

                Comment



                • #9
                  Re: Installing new drain tube in the transom

                  I installed the brass plug in my project and it worked fine. I was scared to use plastic back there. To easy to cross thread.
                  1986 Carlson CVX-18 Restoration

                  1995 Sea Ray 220 Signature Deck and Stringer Restoration (SPLASHED!!!)

                  1981 Glastron SX-190 Rotten Transom Replacement and Re-power! (Splashed and SOLD)

                  Follow !

                  Comment



                  • #10
                    Re: Installing new drain tube in the transom

                    The Moeller flange tool is $40??? It looks like a bolt and a few nuts. There has to be a better option/ homemade version. Maybe I'll just take mine to a rebuilder and see if they can do it for a couple bucks.

                    Comment



                    • #11
                      Re: Installing new drain tube in the transom

                      Originally posted by bret_dmb View Post
                      The Moeller flange tool is $40??? It looks like a bolt and a few nuts. There has to be a better option/ homemade version. Maybe I'll just take mine to a rebuilder and see if they can do it for a couple bucks.
                      $42.00 plus shipping but it works great. I have one, but I use it a good bit. You can flare the tubes with a ball peen hammer but it's tricky and doesn't look near as good.

                      I know several guys that have the two piece plastic ones that have had no problem so far. The 3M 4200 seals them up fine.
                      A good brand of engine is one that runs

                      Comment



                      • #12
                        Re: Installing new drain tube in the transom

                        I like the ball peen hammer idea. Most likely I'll only have to do this once and I like the brass drains better than those plastic ones. Especially since I want to keep my boat as original as possible.

                        Comment



                        • #13
                          Re: Installing new drain tube in the transom

                          I used a 3 inch bolt with a flat washer on the pre-flanged end, and a wing nut that was about an inch and a half wide on the straight end. As I tightened the wing nut, it started to flare the brass tube. It gave me about a 45 degree angle. The rest I did with a hammer. Remember to cover the tube and opening with sealant before you start. I used 3M 5200.
                          "For not much money, and a little bit of work, you'll be on the water in no time" - PO (June 2010)

                          New Project: The inevitable 1979 16 DeckCraft restoration!

                          Last Project: The inevitable 1973 15 Reinell tri-hull restoration!

                          Comment



                          • #14
                            Re: Installing new drain tube in the transom

                            Originally posted by dOb View Post
                            I used a 3 inch bolt with a flat washer on the pre-flanged end, and a wing nut that was about an inch and a half wide on the straight end. As I tightened the wing nut, it started to flare the brass tube. It gave me about a 45 degree angle. The rest I did with a hammer. Remember to cover the tube and opening with sealant before you start. I used 3M 5200.
                            That's a good idea, get the flare started first......
                            A good brand of engine is one that runs

                            Comment



                            • #15
                              Re: Installing new drain tube in the transom

                              Originally posted by dOb View Post
                              I used a 3 inch bolt with a flat washer on the pre-flanged end, and a wing nut that was about an inch and a half wide on the straight end. As I tightened the wing nut, it started to flare the brass tube. It gave me about a 45 degree angle. The rest I did with a hammer. Remember to cover the tube and opening with sealant before you start. I used 3M 5200.
                              I like that idea. Do you have any pics of your finished product?
                              1964 Arkansas Traveler w/ 1966 Merc 650, 65 HP - In Restoration
                              1966 Mercury 650 Resto

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