Johnson TN 26

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  • July 17, 2018 at 12:58 am #10577
    ford981micah
    Participant

      I can’t get my TN 26 to run below half throttle. It runs great at full throttle. Just replaced the impeller and the water seems hot coming out of the telltale. Also is there a trick to keeping the new starter rope from pulling out of the sheve.

      July 17, 2018 at 1:42 am #79658
      crosbyman
      Participant

        Canada Member

        see page 93 -94 in the TN carb adjustments in the johnson bible clean all passages and the little screen

        http://162.144.28.33/lib/johnson/manual … .html#/100

        Joining AOMCI has priviledges 🙂

        July 17, 2018 at 1:57 am #79659
        Anonymous

          Here’s a website that might be of some help.
          http://pochefamily.org/outboard/
          Good luck with your motor,

          Steve A W

          July 17, 2018 at 9:45 am #79664
          frankr
          Participant

            US MEMBER PAY BY CHECK

            The slow speed needle is very sensitive on those. How far to you have it open? 5/8 turn is about right.

            July 17, 2018 at 12:52 pm #79666
            ford981micah
            Participant

              It is open about a 1/2. Seems to be where it wants to run the best.

              July 17, 2018 at 2:39 pm #79668
              ford981micah
              Participant

                https://youtu.be/6m6FJnGJU4k

                A video of it running after impeller change.

                July 18, 2018 at 11:51 am #79682
                steveh
                Participant

                  Have you checked the compression on the cylinders> Low compression will make it difficult to start and it won’t idle very well. It also seems to be running rich to me. Also, running these things in a barrel can make them choke on their own exhaust. You might try setting up a fan. Beyond that, these are well-made reliable motors. My go-to motor is my grandfather’s old TN-26. I love it!

                  Steve.

                  July 18, 2018 at 2:06 pm #79684
                  ford981micah
                  Participant

                    I have no problem starting it. I have some sea foam in the fuel and I have been able to get it to idle down 2 notches now. I am assuming dirt somewhere. Can I still get the leather washers from Lloyd?

                    July 18, 2018 at 4:39 pm #79688
                    aquasonic
                    Participant

                      Not sure if Lloyd is still selling the primer washers. All good advice on the previous posts. A compression test will give you some valuable information, as these rotary valve motors are very sensitive to low compression. They just won’t idle well.

                      A complete carburetor cleaning and rebuild as described on the pochefamily website would be a wonderful thing. In the meantime, take the check valve out, carefully remove the screen, and soak both in carb cleaner or acetone. The tiny disc inside must be free, or the motor will not idle. The pochefamily website describes a test to see if the check valve is working properly.

                      Improvise-Adapt-Overcome

                      July 18, 2018 at 5:23 pm #79689
                      fisherman6
                      Participant

                        US Member

                        Last I knew Lloyd was still selling the leather primer washers.
                        -Ben

                        OldJohnnyRude on YouTube

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