1960’s 3hp johnsons

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  • June 5, 2016 at 11:13 pm #4439
    ausob-collector
    Participant

      Hi all

      I was at another outboard enthusiast’s shed Te other day and came across this interesting difference on these two 1960’s 3hp Johnson motors.
      As you can see from the pics, one has the normal 8-hole exhaust and cooling water relief, while the other has a 4-hole one.

      Is this quite common? I’ve never seen the 4-hole one before.

      Cheers
      BP

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      June 6, 2016 at 6:50 am #37766
      collectorinspector
      Participant

        Looks like one is a bitsa?

        Possibly a 5Hp leg with the eight holes and that prop.

        May be seeing too deep aye?

        BnC

        June 6, 2016 at 7:35 am #37767
        oltimer
        Participant

          I believe you will find this as a factory update (Service Bulletin) sent out to dealers as the motor comes in. It said why and how to add the extra holes, and drill them to size match, but I would have to pull out the "stick" and load it to my computer. Garry from Tampa our great senior member sent me the factory update stuff years ago.

          June 6, 2016 at 11:33 am #37771
          bkrsdoz
          Participant

            US Member

            Looks like one is a JW series with the angled weedless drive, and the other is the JH series high thrust 90 degree angle drive for use on a sailboat as a kicker.

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