Home Forum Ask A Member Bent piece inside 57 Johnson Lower-please see pics

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  • #1092
    danblue
    Participant

      Hello Everyone,

      Well, I am about to start prepping my newly acquired 1957 35hp Jognson lower housing for paint, and I noticed there is a bent rim piece. I lifted that flat metal plate off and noticed this bent part. See pictures attached.

      Will this bend in the metal cause any issues? I’m about to cover this cavity with paper and tape it off for painting, then I’m having my outboard mechanics essentially rebuild the lower for me. I just want to make sure this bent area won’t cause any mechanical issues, or water/oil leaking issues.

      Thanks!


      screen shot windows

      #13214
      danblue
      Participant
        #13216
        danblue
        Participant
          #13220
          al-lockhart
          Participant

            Canada Member - 2 Years

            Looks perfectly normal to me, just the way the casting is made.

            #13221
            danblue
            Participant

              If you look at the first picture and notice that slight discoloration in the middle of the bend, then look at where my pencil is pointing in the remaining two pictures, there is a slight crack there, and you can see daylight through it.

              I just want to make sure this doesn’t create an area where water will get in, etc. Is this a concern at all?

              Thanks!

              #13222
              chinewalker
              Participant

                US Member

                That’s a common issue. What happens is water gets trapped in those cavities, then freezes, popping the lip over. Really doesn’t make a huge issue, as the entire area is sealed under the water pump plate so that water can be drawn up from below. That is, as long as the base plate is supported enough elsewhere that it can’t bow or warp.

                #13224
                danblue
                Participant

                  Thank you Chinewalker. Well, the base plate fits perfectly snug there, and there’s nothing that looks like it would cause any issues…The fit is perfect….I just didn’t know if that slight hole where this metal is bent would be cause for water to enter any part of the unit to cause problems, etc…Seems to me this is not a problem.
                  Any other input is much appreciated.

                  Thanks!

                  #13227
                  mr-asa
                  Participant

                    The seal is in that brass part the driveshaft goes through. There’s no other seal in that area. Shouldn’t be an issue.

                    #13228
                    frankr
                    Participant

                      US Member
                      quote danblue:

                      Thank you Chinewalker. Well, the base plate fits perfectly snug there, and there’s nothing that looks like it would cause any issues…The fit is perfect….I just didn’t know if that slight hole where this metal is bent would be cause for water to enter any part of the unit to cause problems, etc…Seems to me this is not a problem.
                      Any other input is much appreciated.

                      Thanks!

                      As long as the hole doesn’t go through to the outside of the case (below the cavity under question), it shouldn’t be a problem. I agree with the freezing theory. I’d use it without fear. Be sure to clean it up where the plate sits, and use some sealer.

                      #13230
                      danblue
                      Participant

                        I understand. So any "sealing" is achieved down in the hole where that brass ring is with a seal seated underneath the brass…. I watched a guy on YouTube removing this brass ring recently to replace the seal.

                        So we can define this cavity area where this bend is as a "non-critical" area as far as water/oil moving into and out of where leaking could occur.

                        Thanks a million!

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