1962 Johnson 10 hp

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  • March 10, 2024 at 9:11 am #285744
    Donald Keller
    Participant

      US Member

      Goodmorning , I have bought a 1962 johnson 10 hp that I came across. I have got all new seals , an impeller to install on it…an paint, to restore back with..appear to have been neglected some what through time..I have cleaned it up anhave put it in Barrel…It runs great…and idle great too..I checked compression and it is showing ….60 on top and bottom cylinders.?. I was considering putting another powerhead on it…Would a 1959 evenrude 10hp, bolt up on this motor….or would I be better off putting rings an new seals in this motor…Thankyou all ..in advance for info an advice.

      March 10, 2024 at 10:17 am #285745
      jimk
      Participant

        If it runs great as is I would question your compression gauge?

         

        March 10, 2024 at 11:19 am #285751
        Donald Keller
        Participant

          US Member

          Ok…Thankyou JimK…after I get all the new seals in it an painted,I will put on boat to run some..And I will also get another gauge to check with…thanks again

          March 10, 2024 at 2:02 pm #285758
          crosbyman
          Participant

            Canada Member - 2 Years

            if it works don’t fix it  …they say  🙂

            Joining AOMCI has priviledges 🙂

            March 10, 2024 at 3:54 pm #285769
            Donald Keller
            Participant

              US Member

              Thankyou Crosbyman…even though it runs great…I was just concerned about the compression numbers…it is probable like jimk suggested, ..my tester is not right…

              March 10, 2024 at 8:23 pm #285788
              frankr
              Participant

                US Member

                1962 has the better pistons. Don’t go backwards to the 59 powerhead that would beat the wrist pins loose in the pistoms.

                March 10, 2024 at 8:39 pm #285791
                Donald Keller
                Participant

                  US Member
                  1. thankyou frankr for this info…what years going forward would be the same as the 62??….. I will run this one some on a boat to see how it does…runs great in barrel.
                  March 11, 2024 at 10:15 am #285806
                  frankr
                  Participant

                    US Member

                    The improved pistons and pins came out in 1961 and continued through 1962 and 1963….last year for the 10hp. 1964 was a totally different motor making 9.5hp

                    March 11, 2024 at 10:44 am #285807
                    Donald Keller
                    Participant

                      US Member

                      Thankyou frankr…for all the valuable info.i had no idea about the improved pistons an the years they produced them. Thankyou all for  the helpful info.

                      March 12, 2024 at 11:24 am #285862
                      seakaye12
                      Participant

                        US Member

                        This is a Mumbles Pic.  Member Mumbles has some of the best images around when it comes to explaining things.  Note the year markings on the rods.

                        Early-Late-QD-Rods-Pistons

                         

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