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prop nut torque

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  • prop nut torque

    I was wondering how tight the prop nut should be on a pin driven prop. Just wondering as should it be snug or very tight.

  • #2
    Re: prop nut torque

    Each manufacturer has different specs. We need make, model and year specs to help.
    2008 JC Neptoon 25TT
    115hp Honda 4-stroke
    2007 Suburban LTZ
    Lake Murray, SC


    • #3
      Re: prop nut torque

      its a Johnson 25r70 (1970 25 hp) to get the cotter pin in it can either be snug or I can turn it one more turn to get the pin in and thats about it.


      • #4
        Re: prop nut torque

        What I do.

        Finger tighten the prop nut and then tighten just enough to get the pin in.
        I have not lost one yet !!! (touch wood)
        sigpicMarada 2100 Executive Series, 5 Litre V8 with Mercruiser Alpha 1 outdrive. 2007 K-Z Spree 260 RBH, all = a whole lot of family fun !!!!


        • #5
          Re: prop nut torque

          I just bought a turning post rascal and it recommends 30ft-lbs or refer to the engine manual(03 25hp mercury). Dont know if this helps but figured i'd throw it out there.


          • #6
            Re: prop nut torque

            Gently like a spark plug...just tight enough to get the pin in.