Crank seal replacement

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  • May 18, 2022 at 5:04 pm #260028
    James Calamon
    Participant

      US Member

      1970 Evinrude 33 / 33053m Have engine out and doing everything but crank seals, but wanted to know how hard it would be t replace them and if there indicators for leaking crank seal. Bought motor sitting sideways in the back of a boat i bought, so I have no history. It shows some lower end work, but has original coils and ignition parts.

      May 18, 2022 at 5:48 pm #260030
      Tom
      Participant

        US Member

        Put some oil on the crank at the seal and turn the motor over, assuming reed plate is in place.  If you see bubbles, replace the seal.

        T

        May 18, 2022 at 6:38 pm #260033
        Mumbles
        Participant

          Here’s how I test the top seal for leaks while spinning the motor over with a wrench and the plugs out.

          https://youtube.com/shorts/cXt6fV6Z5rc?feature=share

          May 24, 2022 at 8:47 am #260409
          fleetwin
          Participant

            US Member - 2 Years

            Your statement  …doing everything but crank seals…  confuses me.  Do you have the powerhead all apart?

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