Home Forum Ask A Member 1952 Fleetwin water pump housing.

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  • #291221
    old57
    Participant

      Hello, I have 1952 Evinrude 7.5 hope #4447. I’ve tried to get at water pump I removed clutch rod pin was able to drop lower unit but drive shaft and water pump housing remained in upper pump body and is stuck. Any ideas on how to remove it would be great. Removing power head seems impossible because of 2 screws in front blocked by the swing handle. Thanks in advance .

      #291222
      frankr
      Participant

        US Member

        Drive shaft passes through a bushing and can be a bear to remove if all coated with carbon and crud.   Assuming there is no other problem, the good news is you don’t have to remove the drive shaft. The pump can be removed by simply prying/rocking it out.  It likely has some corrosion around it.  When you reassemble it, notice the pump housing, plate and flat spring are all keyed for proper alignment.  Clean up the parts so they slip together easily and pay attention to the keys.

         

        7.5-pump-housing

        #291235
        old57
        Participant

          Thanks for the input. The pump seems really stuck I’ll give it a try tomorrow. Seems like a real lousy design but she is 70 plus’s years old and runs great except for pump . Thanks again for the information.

          #291236
          frankr
          Participant

            US Member

            Lousy design maybe. But it beats drilling out those frozen pump housing screws in newer models.

            #291237
            frankr
            Participant

              US Member

              Lousy design maybe. But it beats drilling out those frozen pump housing screws in newer models.

              Um speaking of lousy i think the impeller is obsolete?

              #291240
              old57
              Participant

                You are definitely right about the housing screws and I was able to finally drop the pump thanks to your suggestion. I’m confused on most outboards I’ve had there’s a water tube going to the block and there is none in this unit. Am I missing something? I’ve looked at diagrams and don’t see any. Is this normal?

                #291252
                frankr
                Participant

                  US Member

                  Normal yes. It is cast as an integral passage in the exhaust tube and housings. I may post a picture later. Too sick to do it right now.

                  #291255
                  old57
                  Participant

                    Thanks and hope you feel better. The impeller is obsolete but I read that 1966 5-6-7.5 hp have almost identical. You just have to shave off some rubber. It’s worth a try, already on order. Once again thanks, you’ve been a big help. Get better.

                    #291256
                    labrador-guy
                    Participant

                      US Member - 2 Years

                      Thanks and hope you feel better. The impeller is obsolete but I read that 1966 5-6-7.5 hp have almost identical. You just have to shave off some rubber. It’s worth a try, already on order. Once again thanks, you’ve been a big help. Get better.

                      If you have a belt sander,  that works good to skinny those impellers a little on each side.  You will also need to bore the ID out a little.  Mine shoots water out  maybe two foot behind the motor.

                      dale

                      #291296
                      old57
                      Participant

                        I’m just waiting for new impeller wool definitely take your advice and use belt sander hopefully the motor will be ready just in time for winter. Go figure. Thanks for everyone’s help.

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