Mark 7 gearcase help needed

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  • September 5, 2021 at 2:27 pm #246186
    ronboonville
    Participant

      The gear case is seized. how can I remove it? I can’t get a hold of the top nut. any solution?

      • This topic was modified 4 years, 3 months ago by ronboonville.
      September 5, 2021 at 6:44 pm #246200
      green-thumbs
      Participant

        US MEMBER PAY BY CHECK

        The gear foot CAN be removed without taking off powerhead IF the two
        nuts can be removed. Even then i corrosion can make it a job and a hakf,
        A wrench can be ground to fit into the space at tower nut. Might be a good idea to heat nut to help matters out. There may be a flap to bend down in order to work on nut.
        If gear foot is seized up, look for another from either KE4 or Mark7 (same
        motor different name)
        Good Luck
        Louis

        September 5, 2021 at 7:02 pm #246201
        ronboonville
        Participant

          Thanks Green, started to make a wrench but bent that tab down. then I used a flat punch on the flats and heat and got top nut off. Have moved the gear case about a 1/16 driving screw drivers in. and heat.

          September 5, 2021 at 7:13 pm #246203
          dave-bernard
          Participant

            US Member

            what holds the gear case on now is the water tube is frozen in . very common.

            September 5, 2021 at 8:20 pm #246205
            green-thumbs
            Participant

              US MEMBER PAY BY CHECK

              My crystal ball shows a parts motor in your future. The water tube can be cut if you can gain access by forcing Gear Foot away from Tower enough to allow use of hack saw Do not be in a hurry to cut water tube….MUCH less work if you can get thing to separate. Try lots of HEAT in area where Water Tube is in Gear Foot.
              Seized up Gear Foot likely means WATER intrusion and lack of Preventative Maintenance….easier and cheaper to find a decent Gear Foot than to source and replace bearings seals and shafts. AND GEARS.
              If you can ease the Gear Foot off and are able to find an acceptable
              replacement assembly a job within your skills. Rebuilding a Gear Foot
              would involve a learning curve and a parts chase for all the things
              I would expect to be junk. Gear Foot from Up North may have frost
              damaged cases.
              KE7 Gear Foot is same except for Drive Shaft.
              Illustrated Parts Manual for KE4/Mark7 would help you see what you
              are taking on.
              Louis

              September 5, 2021 at 9:56 pm #246220
              dave-bernard
              Participant

                US Member

                the water tube is in the lower about 2 in or so. If your drive shaft is good i have a lower for you..
                Call me 1 914 310 7086
                Dave.

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