1957 Mercury Mark 10 flywheel nut.

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  • March 29, 2023 at 8:53 pm #274562
    mark weaver
    Participant

      Would anyone know the flywheel nut torque spec for my 57 Mark 10? I have a service manual but nowhere in it is the torque specs. I know the specs for a 5/8 bolt fine thread  is 95 foot pounds but this nut has about 5 threats on it, it is the original nut, and I can’t see that standing 95 lbs……maybe 50 or 55??

      March 29, 2023 at 9:25 pm #274573
      Buccaneer
      Participant

        US Member

        This is the best I can find…….

        Merc-torque

        Prepare to be boarded!

        March 29, 2023 at 10:16 pm #274579
        mark weaver
        Participant

          Ok, according to that,  65 foot pounds…that sounds right. I was thinking 50 or 55. Just going by comparable OMC motors. Thank you very much.

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