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new to me '78 mako, 21'

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  • new to me '78 mako, 21'

    So while I am working on my 23' Seacraft restoration, I decided to buy another boat to get me back out on the water in the mean time. Didn't have a big budget so I was looking at the older 20' and 21' Mako's. I finally decided on the 21'. so here it is....it does have a few areas that need attention. I want to rewire the console; right now its just a huge birds nest and I don't want to rely on that when on the water. There are a couple of soft spots but nothing (in my opinion) that wont keep me from getting out.







    as you can see she's no beauty queen but its a great boat. I do need to get a cushion made for the leaning post as well as the front seating cushion.....its there but the backing is rotted out....all in all I feel like I get a great boat with somethings that could use some attention. I think for now I will rewire the console and put the other effort in the Seacraft.

    Any input of what to look for or do would be greatly appreciated....when I get a chance I will post some pics of the seacraft as well......

    so I do have a question..... I am going to replace the existing, older bilge pump and rewire it. I plan on having 2 pumps where it currently only has one. What size is suggested? I was considering (2) RuleMate 750's.....too much? not enough?

  • #2
    Nice platform with solid 2-stroke yammy power.

    I'd encourage you to use the 750gph as your primary but have a larger say 1500gph backup/emergency bilge pump.

    Other than the wiring, the fuel tank and transom are other areas that may need to be addressed at some point.
    ROGUE I[br]1978 235 CC[br]Newburyport, MA[br]ROGUE II[br]1987 17\' Montauk[br]Camden, ME[br]

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    • #3
      thanks Justin.....i guess the big question is why the 1500 gph as backup? i know the transome will need to be ddressed at some point.

      All the thru-hulls in the transome were not sealed at all. so im sure it is saturated but not completely rotten.....i dont notice any give or flex but i know it is a concern. After reading all these threads i am worried about the tank. i think when i remove the console for ease of re-wiring and battery placement i will take the hatch off for the tank and see what lies benmeath.....

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      • #4
        Good plan on the tank.

        Regarding the larger secondary bilge pump, the wise ass but accurate reason is your life is worth $100.

        The concept is that the smaller pump is for everyday dewatering and the larger pump is only triggered in emergencies.

        That backup pump may never run -- but if you need it, it could be a lifesaver. Literally.

        You could also install 2 equal size large capacity pumps if you like.

        http://marinesurvey.com/yacht/bilge_pumps.htm
        ROGUE I[br]1978 235 CC[br]Newburyport, MA[br]ROGUE II[br]1987 17\' Montauk[br]Camden, ME[br]

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        • #5
          quote:


          Originally posted by Justin


          Good plan on the tank.


          Regarding the larger secondary bilge pump, the wise ass but accurate reason is your life is worth $100.

          The concept is that the smaller pump is for everyday dewatering and the larger pump is only triggered in emergencies.

          That backup pump may never run -- but if you need it, it could be a lifesaver. Literally.

          http://marinesurvey.com/yacht/bilge_pumps.htm


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          • #6
            ha! i guess the obvious isnt really obvious till it slaps you in the face 1500 it is.....thanks

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            • #7
              quote:


              Originally posted by fatcat01


              ha! i guess the obvious isnt really obvious till it slaps you in the face 1500 it is.....thanks



              Sure

              Check out the article I posted.

              Wire both pumps via float switches directly to the battery. You can incorporate an auto/on/off switch at the console but be sure it's getting power direct from a battery (this ensures pumps don't lose power when a battery switch is turned off).

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

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              • #8
                great article! i thought the RuleMate pumps had internal float switches....am i wrong in saying that?

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                • #9
                  I do believe the rule mate pumps have built in sensors yes, but not traditional float switches.

                  Personally I think those are not ideal as they sometimes work erratically and / or cycle on and off too much and drain batteries -- a non auto rule pump wired with a float switch (rule, water witch, etc) is preferable.
                  ROGUE I[br]1978 235 CC[br]Newburyport, MA[br]ROGUE II[br]1987 17\' Montauk[br]Camden, ME[br]

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                  • #10
                    so i guess the next question is this.....when I start to rewire the console, the wire sizing calls for #14......is there any negative reason to use #12? good or bad idea?

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