1967 Johnson Meteor outboard motor

Home › Forum › Ask A Member › 1967 Johnson Meteor outboard motor

Viewing 4 posts - 1 through 4 (of 4 total)
  • Author
    Posts
  • July 26, 2025 at 4:43 pm #298540
    nm02210
    Participant

      I noticed the backing on my power pack had melted. When I removed the engine cover, there was a gray sticky material on the surface below the power pack. Some of this material also dripped down onto the lower unit.

      I don’t know what caused the plastic backing to melt. The engine still starts and runs. Will this cause a problem with running the boat? I assume this backing material was for insulation purposes.

      Thanks for your help.

       

      July 26, 2025 at 8:59 pm #298550
      Waunnaboat
      Participant

        US Junior Member

        If plastic on the outside of your power head is melting, then you probably have any issue with cooling.  I would check to make sure the impeller is in good shape and probably replace it while you’re at it.  Other sources of issue could be obstructions in the cooling jacket and obstructions to the water intake and the tube/line between the impeller and cooling jackets.  I would clear these all out and replace the impeller, and you should not have cooling issues for a while.

        "Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

        July 26, 2025 at 9:00 pm #298551
        Waunnaboat
        Participant

          US Junior Member

          If the root of the melting is not from cooling issues, it is probably the plastic getting old and melty as plastics from the 60’s left in a garage or outside tend to do.

          "Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

          July 26, 2025 at 9:01 pm #298552
          Waunnaboat
          Participant

            US Junior Member
            Waunnaboat wrote:

            If the root of the melting is not from cooling issues, it is probably the plastic getting old and melty as plastics from the 60’s left in a garage or outside tend to do.

            That being said, I highly doubt that plastic would be dripping if there was not a cooling issue with the motor.

            "Outboards seem to multiply exponentially..........I find that for every finished project, there are two more waiting to be completed."

          • Author
            Posts
          Viewing 4 posts - 1 through 4 (of 4 total)
          • You must be logged in to reply to this topic.