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  • Cracks in hull

    Ive got a 22' mako ,circa !972.Over the last couple of years i've developed cracks in the hull.The lastest one is about 16"across the center line 3 0r 4 feet from the stern. Anyone know whats going on?
    William Spencer

  • #2
    quote:


    Originally posted by Bill Spencer


    Ive got a 22' mako ,circa !972.Over the last couple of years i've developed cracks in the hull.The lastest one is about 16"across the center line 3 0r 4 feet from the stern. Anyone know whats going on?



    First, welcome to ClassicMako!

    Sounds like you have a bad transom and possibly suspect stringers causing flex in the hull and cracking the gelcoat. What motor do you have, how is the transom and where are you located?

    Pictures would also help greatly. You need to upload them to a image hosting website like IMGUR and then paste the IMG code into your post. There is a tutorial posted above on how to do it if needed.
    1978 Mako 25 - Blind Hog
    1985 Mako 20c - sold
    Fort Walton Beach, FL
    http://www.classicmako.com/forum/top...TOPIC_ID=42841

    Comment


    • #3
      quote:


      Originally posted by Bill Spencer


      Ive got a 22' mako ,circa !972.Over the last couple of years i've developed cracks in the hull.The lastest one is about 16"across the center line 3 0r 4 feet from the stern. Anyone know whats going on?



      First, welcome to ClassicMako!

      Sounds like you have a bad transom and possibly suspect stringers causing flex in the hull and cracking the gelcoat. What motor do you have, how is the transom and where are you located?

      Pictures would also help greatly. You need to upload them to a image hosting website like IMGUR and then paste the IMG code into your post. There is a tutorial posted above on how to do it if needed.
      1978 Mako 25 - Blind Hog
      1985 Mako 20c - sold
      Fort Walton Beach, FL
      http://www.classicmako.com/forum/top...TOPIC_ID=42841

      Comment


      • #4
        quote:


        Originally posted by Bill Spencer


        Ive got a 22' mako ,circa !972.Over the last couple of years i've developed cracks in the hull.The lastest one is about 16"across the center line 3 0r 4 feet from the stern. Anyone know whats going on?



        First, welcome to ClassicMako!

        Sounds like you have a bad transom and possibly suspect stringers causing flex in the hull and cracking the gelcoat. What motor do you have, how is the transom and where are you located?

        Pictures would also help greatly. You need to upload them to a image hosting website like IMGUR and then paste the IMG code into your post. There is a tutorial posted above on how to do it if needed.
        1978 Mako 25 - Blind Hog
        1985 Mako 20c - sold
        Fort Walton Beach, FL
        http://www.classicmako.com/forum/top...TOPIC_ID=42841

        Comment


        • #5
          That crack 3-4' up from the stern definitely sounds bad.

          Dont run the boat until you can investigate -- likely bad stringer(s).

          Sorry.
          ROGUE I[br]1978 235 CC[br]Newburyport, MA[br]ROGUE II[br]1987 17\' Montauk[br]Camden, ME[br]

          Comment


          • #6
            Hi Bill...

            Like others have suggested...hold off using the boat until you can confirm the problem.

            If you can get eyes on the stringers in that area, that should tell you if it something major.

            It is not uncommon for the stringers to fail where the factor limber/lift holes were made...see pics below





            Be sure to take some images of your findings and post them here so forum members can recommend what repair actions are needed.

            welcome to the club!

            Eric
            A wise man once said, "Son... if it has tits, tires or a transom... sooner or later it's gonna give you problems." -the old man

            1972 Classic Mako 19
            https://forum.classicmako.com/forum/...t-squot-ole-19

            Comment


            • #7
              Hi Bill...

              Like others have suggested...hold off using the boat until you can confirm the problem.

              If you can get eyes on the stringers in that area, that should tell you if it something major.

              It is not uncommon for the stringers to fail where the factor limber/lift holes were made...see pics below





              Be sure to take some images of your findings and post them here so forum members can recommend what repair actions are needed.

              welcome to the club!

              Eric
              A wise man once said, "Son... if it has tits, tires or a transom... sooner or later it's gonna give you problems." -the old man

              1972 Classic Mako 19
              https://forum.classicmako.com/forum/...t-squot-ole-19

              Comment


              • #8
                Good advice given. Let us know how you make out
                1984 Mako 238 WA [br]2015 Suzuki 250 APX[br]Central PA/OCMD[br]http://www.classicmako.com/forum/topic.asp?TOPIC_ID=35081[br]

                Comment

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