Home Forum Ask A Member need advice-how to get out bearing race

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  • #220775
    outboardnut
    Participant

      US Member

      I have a gear case from a RD-17 25 hp that the halves were left open for who know how long. #@%&!
      Of course all the gears are rusted
      I would like to save the gear case because the halves are a match
      Beside heat and penetrating oil would suggest do you have to get the race out.
      What “tool/punch” should I use to hit it from the opposite side
      I’m betting someone has some trick

      race-bearing

      #220778
      frankr
      Participant

        US Member

        Universal way “when there is no other way” is heat the aluminum case around the race, then thunk the case on your wooden workbench top. If everything goes as planned, it will fall out. Otherwise, I
        think a slide hammer puller will work.

        #220783
        bobw
        Participant

          US Member

          As Frank noted, heating the case and then knocking it on your workbench will often cause the race to just fall out. On my RD-18, I heated the area around the race then knocked the race out from the top side using a long piece of 3/16″ steel rod as a punch – popped it out with 2 easy taps. Don’t know if your RD-17 is exactly the same but in this picture you can see a slot at the front and back of the case that allows access to the top of the race to knock it out.

          17-Pinion-Gear-Bearing-Race-Removed

          Bob

          1937 Champion D2C Deluxe Lite Twin
          1954 Johnson CD-11
          1957 Evinrude Fastwin 18
          1958 Johnson QD-19
          1958 Johnson FD-12
          1959 Johnson QD-20

          “Every 20 minute job is only a broken bolt away from a 3-day project.”
          "Every time you remove a broken or seized bolt an angel gets his wings."

          • This reply was modified 3 years, 5 months ago by bobw.
          • This reply was modified 3 years, 5 months ago by bobw.
          #220791
          outboardnut
          Participant

            US Member

            I wish my race was that pretty.Mine is STUCK!
            I found this on youtube
            Look at time mark 2:46
            https://www.youtube.com/watch?v=0azLkaPzF40
            I’m going to try to talk my neighbor to weld for me

            #220819
            bruceter
            Participant

              Canada Member - 2 Years

              Welding a bead around the inside of the race Will shrink the race and it may just fall out , If it doesn’t tack a frost plug or disc that fits inside the race then tap out with a rod from the top side
              I over the years I have removed many valve seats from aluminum heads this way

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