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  • Vibration

    Took the boat out for the second time this summer and noticed a vibration at 2000-3000 rpm. I figured a bent prop, so switched to a new prop, problem still there. Any ideas of cause? Bad fuel, fuel pump, tranny problems? Anyone else had problems such as this?
    Thanks Mitchell
    Mitchell

  • #2
    Check for play in the thrust bearing. Could also be alignment.

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    • #3
      check true-ness of drive shaft - if prop was struck - shaft may have some wobble to it.
      sigpic...A bad day water skiing still beats a good day at work...1995 Pro Star 205....

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      • #4
        Originally posted by mikeg205 View Post
        check true-ness of drive shaft - if prop was struck - shaft may have some wobble to it.
        Ha you said wobble...
        http://www.youtube.com/watch?v=UH5hUULu4Nk
        /spĂ´rk/
        a spoon-shaped eating utensil with short tines at the tip

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        • #5
          Originally posted by [email protected] View Post
          lol... too funny
          sigpic...A bad day water skiing still beats a good day at work...1995 Pro Star 205....

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          • #6
            I didn't believe it myself. Everyone said that you should be able to spin your prop with two fingers. I never could. On my last two boats I always had to use two hands. I figured that was the way it was. I also had a vibration at 2000 rpm, I pulled my prop shaft and it was bent!

            After I had the shaft straightened back to .004, replaced cutlass bearings, installed the shaft and believe it or not I could spin it with two fingers! Vibration at 2000 rpm was gone.

            I would look towards your prop shaft.

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            • #7
              After some research I drained the gas tank added sea foam and fresh non-ethanol gas, the boat ran much better, I know I will be adding a ethanol treatment from now on. Thanks for your replies
              Mitchell

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