CD13 water pump issues

Home › Forum › Ask A Member › CD13 water pump issues

Viewing 8 posts - 1 through 8 (of 8 total)
  • Author
    Posts
  • March 15, 2015 at 4:17 am #931
    makeitrun
    Participant

      US Member

      I have recently put together a Johnson CD13 rebuilt power head, new seal kit, and impeller. The motor fired up after a couple of pulls, and runs very good except it doesn’t pump water. I have removed the power head 3 times trying to figure it out everything checks out good with the lower unit, and power head nothing is clogged I am stumped.

      Any help would be greatly appreciated.

      March 15, 2015 at 5:24 am #12009
      Doug Wilson
      Participant

        US Member - 2 Years

        make sure the water in the tank is well above the intake up closerto the exhaust these pumps do not self prime so needs tobe higher than you would think
        also if it has a thermostat make sure it is opening
        Doug

        Doug

        how is it motors multiply when the garage lights get
        turned off?

        March 15, 2015 at 5:31 am #12010
        Mumbles
        Participant

          I see you are in Florida so there is a chance this motor has been used in salt water?

          One weak link in the chain in the cooling systems of these motors is in the area of the upper water tube grommet. They tend to corrode in this area causing a massive internal water leak which can’t be seen while the motor is running. If you pull the tube and the grommet right out, you will see right away if any aluminum is missing. Better yet, plug the water passage right below the power head and apply water or air pressure to the copper water tube to check for leakage. There is a way to fix this problem but that’s another story.

          March 15, 2015 at 9:10 pm #12055
          makeitrun
          Participant

            US Member

            It’s a northern motor super clean the problem was the water level was not above the impeller she pumps water like a firetruck now. The only problem now is I found the crank seal underneath the power head floating in the water off comes the power head one more time.

            March 16, 2015 at 11:36 am #12088
            fleetwin
            Participant

              US Member - 2 Years

              Are you sure you are using the correct powerhead base gasket? Are you sure the powerhead and exhaust housing are the same vintage/compatible?
              This can get confusing, and mismatches/wrong gaskets usually lead to overheat problems.

              March 16, 2015 at 3:35 pm #12095
              aquasonic
              Participant

                US Member

                Well, the water pump issue could not have had a better outcome!

                I can see how the crank seal could fall off easily when reinstalling the powerhead.

                If you haven’t replaced that cork crank seal and the o-ring under the powerhead then it would be a good time to do this. That will keep water from getting into the crankcase.

                March 16, 2015 at 5:15 pm #12098
                fleetwin
                Participant

                  US Member - 2 Years

                  OK, so it sounds like the issue has been resolved??

                  March 17, 2015 at 1:43 am #12137
                  makeitrun
                  Participant

                    US Member

                    Yes everything is good now, thanks all for the help.

                  • Author
                    Posts
                  Viewing 8 posts - 1 through 8 (of 8 total)
                  • You must be logged in to reply to this topic.