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1975 Omega Restore, the project goes on.

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  • 1975 Omega Restore, the project goes on.

    My friend and I just picked up a 1975 Omega Trihull with a mercruiser l6. The front motor mount is sinking into the floor, the glass is cracked around the mount indicating some bad rot in the wood underneath. I have no idead where to start with this. How do I asses how much rot there is? I can only imagine it will be a lot more than just that area. Step one pull the motor? Then do I cut the glass around where the suspected rot is? Or does the whole floor need to come out? If anyone can give me a direction to start with it would be appreciated. thanks.
    Last edited by thrillhouse700; August 15th, 2009, 09:37 PM. Reason: Its now a restore.
    Me and "The Lost Cause" 1975 trihull project.
    https://forums.iboats.com/showthread.php?t=341563


    Hijack thread - Courtesy of HVAC Cruiser
    https://forums.iboats.com/showthread.php?t=360893

  • #2
    Re: 1975 Omega Rot, Don't know where to start.

    your best set would be to pull the motor and everything, take the floor right out if one area is bad the whole floor wont be far behind, so you willl be better off to replace the whole thing

    Comment


    • #3
      Re: 1975 Omega Rot, Don't know where to start.

      Apologize for my ignorance but taking the floor out would include cutting it out? I have seen pics of your guys restos where the top and bottom shell has come apart. Do I have to do that? I have the tools and time, just have to talk it over with my friend and see if we really want to dive into this.
      Me and "The Lost Cause" 1975 trihull project.
      https://forums.iboats.com/showthread.php?t=341563


      Hijack thread - Courtesy of HVAC Cruiser
      https://forums.iboats.com/showthread.php?t=360893

      Comment


      • #4
        Re: 1975 Omega Rot, Don't know where to start.

        if you do decide to do this.....as suggested.....rip it all out.....its not that hard....

        i just did a 78 campion with a chain saw right to bare hull....it only took me 16 hrs ..(didnt take the cap off)..the rebuild will be a bit longer but after every thing is out...it will be way easyer than tip-tow-ing around old peices of glass and deck...

        need to see pics of your boat before i can tell you if the cap has to come off....but dont worry about that....that part is really easy and youll be glad you did it....(if you have to)

        use a circ saw to cut the outer boundry of the existing deck......that will give you your deck height.....after you have your straight cuts done....get out the electric chain saw.....and start ripping.......

        cost...aprox 800-1500 full
        time...between 40 and 200 man hours.
        diffuilcty....7.5
        satisfaction....priceless

        cheers
        oops
        The Hull Extension Thread
        great info on all aspects on boat building with detailed information.

        https://forums.iboats.com/showthread.php?t=234392

        IN MEMORY OF Our friend SpinnerBait_Nut LESTER WRIGHT July 31, 1953 - Nov 26, 2008 RIP

        IN MEMORY OF Our friend Tashasdaddy Robert (bob) Griffis. October 27, 1948
        November 29 2010 RIP

        Comment


        • #5
          Re: 1975 Omega Rot, Don't know where to start.

          by the way....welcome to i boats....
          The Hull Extension Thread
          great info on all aspects on boat building with detailed information.

          https://forums.iboats.com/showthread.php?t=234392

          IN MEMORY OF Our friend SpinnerBait_Nut LESTER WRIGHT July 31, 1953 - Nov 26, 2008 RIP

          IN MEMORY OF Our friend Tashasdaddy Robert (bob) Griffis. October 27, 1948
          November 29 2010 RIP

          Comment


          • #6
            Re: 1975 Omega Rot, Don't know where to start.

            I am mechanically inclined and so is my buddy, He has worked on more boats than me and we have both been in the auto industry for some time. I have pulled my share of motors but Im assuming a cherry picker wont raise up high enough. Any ideas of how the engine removal should be done? what tools I need or if possible rent?
            Me and "The Lost Cause" 1975 trihull project.
            https://forums.iboats.com/showthread.php?t=341563


            Hijack thread - Courtesy of HVAC Cruiser
            https://forums.iboats.com/showthread.php?t=360893

            Comment


            • #7
              Re: 1975 Omega Rot, Don't know where to start.

              welcome to the forum!!

              rip it all out! then do some core samples
              sigpic

              1978 15.7' Imperial Tri-Hull Custom
              75HP Johson Stinger Outboard

              1983 21' Bayliner Capri Cuddy
              Volvo AQ125 VP270 Outdrive

              "Everybody here makes me Happy! Some when they enter... Some when they leave!"

              "If at first you don't succeed, get a bigger F#@&!%G Hammer!"


              Imperial Tri-Hull Videos from Guntersville Lake
              https://forums.iboats.com/showthread...=341521&page=2

              Comment


              • #8
                Re: 1975 Omega Rot, Don't know where to start.

                still not quit sure how to get the engine out, any tips on how to do it at home?
                Me and "The Lost Cause" 1975 trihull project.
                https://forums.iboats.com/showthread.php?t=341563


                Hijack thread - Courtesy of HVAC Cruiser
                https://forums.iboats.com/showthread.php?t=360893

                Comment


                • #9
                  Re: 1975 Omega Rot, Don't know where to start.

                  Gantry crane is the easiest way you can make one out of 4X4's and such . Roll the boat under it lift the motor and roll the boat back out .

                  Rick
                  Current Resto Project
                  1970 Starcraft Jupiter V 16'

                  https://forums.iboats.com/showthread.php?t=322858


                  Starcraft owners be sure to check out the 2010 get together thread .


                  https://forums.iboats.com/showthread.php?t=337378

                  Comment


                  • #10
                    Re: 1975 Omega Rot, Don't know where to start.

                    Here is a photo of the motor mount.

                    Me and "The Lost Cause" 1975 trihull project.
                    https://forums.iboats.com/showthread.php?t=341563


                    Hijack thread - Courtesy of HVAC Cruiser
                    https://forums.iboats.com/showthread.php?t=360893

                    Comment


                    • #11
                      Re: 1975 Omega Rot, Don't know where to start.

                      A small Update with some pics, Today we got the Drive off and realized it probably hasn't been serviced in god knows when. Pulled up all the carpet and pulled off side interior panels. Motor will be coming out next week some time. Found a buddy who will be able to remove it with a forklift. Found two water entry points so far, the boot for the u joints and the lower bolts for the drive are loose.

                      Front area of the motor mount box where it meets the bilge. Should this be open in the corners?

                      We have got a long list of parts that we need so far, but any other parts that are recommended will be added to the list.

                      The drive selector gear looks like it has been gnawed on by a forest creature, cant seem to find it on the iboat parts list. Should this have some for of seal to make it water proof because ours does not.

                      Anyways thanks for all the input so far, I will continue to post pics of progress.
                      Last edited by Bob_VT; October 10th, 2009, 06:07 PM.
                      Me and "The Lost Cause" 1975 trihull project.
                      https://forums.iboats.com/showthread.php?t=341563


                      Hijack thread - Courtesy of HVAC Cruiser
                      https://forums.iboats.com/showthread.php?t=360893

                      Comment


                      • #12
                        Re: 1975 Omega Rot, Don't know where to start.

                        Welcome to iboats! Also welcome to the "unofficial" trihull club! There's a few of them on here. Great to see another one! Gud luck with your project!!
                        Here's my previous boat project:https://forums.iboats.com/showthread.php?t=322024
                        Here's my current boat project:https://forums.iboats.com/showthread.php?t=403597


                        Coming together is beginning, keeping together is progress, working together is unity, thinking together is SUCCESS!!


                        dreaMNbigdreaMZ
                        I LOVE MARTHA

                        Comment


                        • #13
                          Re: 1975 Omega Rot, Don't know where to start.

                          Thank you singinout, I like your boat too!
                          Me and "The Lost Cause" 1975 trihull project.
                          https://forums.iboats.com/showthread.php?t=341563


                          Hijack thread - Courtesy of HVAC Cruiser
                          https://forums.iboats.com/showthread.php?t=360893

                          Comment


                          • #14
                            Re: 1975 Omega Rot, Don't know where to start.

                            Anyone make any suggestions on where to go from here?
                            Me and "The Lost Cause" 1975 trihull project.
                            https://forums.iboats.com/showthread.php?t=341563


                            Hijack thread - Courtesy of HVAC Cruiser
                            https://forums.iboats.com/showthread.php?t=360893

                            Comment


                            • #15
                              Sign up today
                              Re: 1975 Omega Rot, Don't know where to start.

                              You need to seriously check the transom and stringers out for rot.Don't skimp out here.Your passengers as well as your safety will be at risk.Replace them keep the boat securely on the trailer so it doesn't flex or twist when you reinstall the new ones.Go slow,take pics,take measurements,take notes,and work on one side at a time.Slow and steady always gets the job done safely.

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