96 ss gt40 question

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  • TeenagerPrincess
    • Apr 2014
    • 17

    • Branson


    96 ss gt40 question

    Ok boat was running great at about 40mph. In a turn I get a noise (sounds like I hit an air pocket and the prop was spinning) anyhow the boat reduced speed to 30 and it wasn't as smooth running. So i stop and start back. Put in gear has a vibration. Also Loss of power. I put throttle down take3x longer to get on plane. And max speed is 30 now. I pulled boat out and thought I would see a messed up prop. Everything looks normal. Maybe a slight ding-bend on one of the blades. Any help please?



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  • TeenagerPrincess
    • Apr 2014
    • 17

    • Branson


    #2
    There was a bunch of stuff in the lake floating. I just assumed I hit something. That may not be the case.


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    • surroundsound64
      1,000 Post Club Member
      • Jul 2005
      • 2147

      • Longview, TX

      • 2018 230 1981 Ski Nautique

      #3
      Could you have hit something that got stuck on the tracking fins or rudder?
      2018 SAN 230
      1981 Ski Nautique
      Sold - 2011 Sport 200V
      Sold - 2000 SAN

      Comment

      • TeenagerPrincess
        • Apr 2014
        • 17

        • Branson


        #4
        I took it out and looked it over. Put it back in and still have the loss of get up and go. And when I put in gear had a decent vibration


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        • TeenagerPrincess
          • Apr 2014
          • 17

          • Branson


          #5
          Should the prop spin freely or hard to turn by hand?


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          • surroundsound64
            1,000 Post Club Member
            • Jul 2005
            • 2147

            • Longview, TX

            • 2018 230 1981 Ski Nautique

            #6
            It should turn by hand, but not spin. If that makes sense. Does the shaft look bent?
            2018 SAN 230
            1981 Ski Nautique
            Sold - 2011 Sport 200V
            Sold - 2000 SAN

            Comment

            • TeenagerPrincess
              • Apr 2014
              • 17

              • Branson


              #7
              Shaft looks fine. And prop spins if I make it.


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              Comment

              • surroundsound64
                1,000 Post Club Member
                • Jul 2005
                • 2147

                • Longview, TX

                • 2018 230 1981 Ski Nautique

                #8
                Does it vibrate when in reverse too?
                2018 SAN 230
                1981 Ski Nautique
                Sold - 2011 Sport 200V
                Sold - 2000 SAN

                Comment

                • NCH2oSki
                  1,000 Post Club Member
                  • Jul 2003
                  • 1159

                  • Maryville, TN

                  • 2005 ski nautique 206 SE

                  #9
                  Try a different prop, I bet one blade is out of whack, sometimes the damage is not obvious.
                  2005 Ski Nautique 206 SE, Acme 422, PP SG 8.0, ND Tower
                  2011 strada with strada bindings

                  Prior Boats:
                  1986 Sunbird skier with 150 Evinrude VRO
                  1992 Mastercraft prostar 190, with Powerslot
                  1999 Ski Nautique GT-40
                  1999 Sport Nautique, GT-40 FCT,



                  www.skiersofknoxville.org

                  Comment

                  • TeenagerPrincess
                    • Apr 2014
                    • 17

                    • Branson


                    #10
                    Reverse is a lot smoother.


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                    Comment

                    • surroundsound64
                      1,000 Post Club Member
                      • Jul 2005
                      • 2147

                      • Longview, TX

                      • 2018 230 1981 Ski Nautique

                      #11
                      Yea, I would say you have a jacked up prop. If reverse is smooth then the shaft and the rest are probably fine.
                      2018 SAN 230
                      1981 Ski Nautique
                      Sold - 2011 Sport 200V
                      Sold - 2000 SAN

                      Comment

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