Checkup for good running motors

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  • May 9, 2015 at 10:33 am #1438
    stanley
    Participant

      US Member - 2 Years

      I have a few old motors (1930 vintage) that I was able to get running with a good cleaning of fuel system and some ignition work.They run great in a barrel.Should I go ahead and check pistons etc.just to be on safe side or not mess with a good thing and start using them?

      May 9, 2015 at 12:21 pm #15556
      billy-j
      Participant

        US Member - 2 Years

        I think you already answered your own question. THEY RUN GREAT. I would lubricate everything that moves or slides and lubricate lower unit and give it a go. Bill,

        May 9, 2015 at 1:42 pm #15563
        Doug Wilson
        Participant

          US Member - 2 Years

          I agree with Bill, I did that with a Johnson A-50 last year seems to run pretty good on the boat too. I decided was worth a try and am going to try the same thing on a K-50 that wandered in. If you were going to be running them a lot day after day then might be worth tearing them down but for an occasional run think I would risk it.
          Doug

          Doug

          how is it motors multiply when the garage lights get
          turned off?

          May 9, 2015 at 2:12 pm #15567
          stanley
          Participant

            US Member - 2 Years

            Coincidentally,the two I most want to run are anA50 and a KA38.Both have good original paint and I didn’t want to mess it up.I read a previous post about the aluminum "spark arresters" in the A50 getting eaten and got concerned.I’m pretty sure those are fuel atomizers on the intake ports.

            May 9, 2015 at 2:43 pm #15573
            Mumbles
            Participant

              Don’t forget, the KA 38 requires 8:1 fuel mix!

              May 9, 2015 at 2:58 pm #15574
              stanley
              Participant

                US Member - 2 Years

                I saw that.The first time I saw it I thought it was a typo.I’ve been doing that ratio withTC-W30 for tank tests,is that OK for longer use ?

                May 9, 2015 at 3:34 pm #15578
                Mumbles
                Participant

                  The KA has a large rotary valve with two sealing rings on the crank so that is probably why it needs the heavy oil mix. I wouldn’t change it as they don’t make these parts any more.

                  May 9, 2015 at 3:41 pm #15580
                  stanley
                  Participant

                    US Member - 2 Years

                    So the TW-C3 2cycle oil is ok?What do you use in yours?AND thank you for all the info.

                    May 9, 2015 at 11:44 pm #15626
                    Doug Wilson
                    Participant

                      US Member - 2 Years

                      the standard tc-w3 outboard oil is what I have been using,the A50 I ran at 16:1 will have to check and see what it should run. Last time out wind kicked up @ 20-25 it just pushed on through it on a 14′ boat pretty pleased.

                      Doug

                      how is it motors multiply when the garage lights get
                      turned off?

                      May 10, 2015 at 12:20 pm #15651
                      The Boat House
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