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How easy should the prop turn by hand

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  • How easy should the prop turn by hand

    Have a 88 prostar and was curious to see how easy the prop should be to spin by hand when the boat is dry.
    Thanks.

  • #2
    on my 95 it spins freely... how's the cutlass bearing look?
    sigpic...A bad day water skiing still beats a good day at work...1995 Pro Star 205....

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    • #3
      It looks good as far as I can tell. The prop take both hands to turn. I would classify it as hard to turn by hand for sure.

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      • #4
        There should be some drag when turning the prop so if you're use to an I/O or outboard it will spin way harder than those. There should be no up and down play in the bearing and the bearing material should look uniform all around the shaft.

        If the boat has been on the trailer all winter and you're trying to turn the shaft it will feel extra tight until you run the boat in the water.
        I was njskier on here.

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        • #5
          Thanks for the info. I had read some posts about being able to turn the prop with one finger and that seemed almost impossible to me considering the strut and shaft packing. I ran it for a long time Friday and no vibration and the packing nut never got hot so I think I'm properly aligned. May unbolt the coupler to see if I'm aligned properly.

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          • #6
            Posting the obligatory "How to correctly align your propshaft once in the boat's lifetime" doc.

            Do it once, and you'll be able to rotate the prop with one or two fingers. I can do it with one, but it hurts. Two is a more reasonable measure on mine. It made a significant difference in smoothness when I did it.

            Needing two hands suggests to me that you should do this.

            /frank
            Attached Files
            1998 Maristar 200VRS

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            • #7
              Originally posted by Chrisoswald View Post
              Thanks for the info. I had read some posts about being able to turn the prop with one finger and that seemed almost impossible to me considering the strut and shaft packing. I ran it for a long time Friday and no vibration and the packing nut never got hot so I think I'm properly aligned. May unbolt the coupler to see if I'm aligned properly.
              Once aligned correctly you should be able to spin the prop with one finger.
              Tim
              Gone, surfing.

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              • #8
                Thanks a million guys...im off to align...wish me luck!!!

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                • #9
                  My 87 poweslot was always rather stiff. Almost a two hand deal, but fine when in the water. Certainly an alignment check won't hurt.

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                  • #10
                    wow..i just read that document..seems like a bear to do

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                    • #11
                      Originally posted by Chrisoswald View Post
                      wow..i just read that document..seems like a bear to do
                      If you're not comfy with doing it yourself, it's money well spent to let the dealer do it and get it perfect IMHO. Maybe install a dripless shaft seal while you're at it?
                      I was njskier on here.

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                      • #12
                        im gonna do just that..im good friends with a guy who works at a mastercraft dealer and he is gonna set me up..plus i get to see how its done. after seeing it done im sure i will be able to do it in the future..thanks guys

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                        • #13
                          Originally posted by Jerseydave View Post
                          If you're not comfy with doing it yourself, it's money well spent to let the dealer do it and get it perfect IMHO. Maybe install a dripless shaft seal while you're at it?
                          It's a meticulous process...good project when it sucks outside...
                          sigpic...A bad day water skiing still beats a good day at work...1995 Pro Star 205....

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                          • #14
                            My dealer told me that it shouldn't really spin freely... Hmm.
                            2008 Prostar 197 TT #32/100

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                            • #15
                              Ok, I guess I should clarify.

                              If you have a 1to1 trans it should spin very easy, one finger for sure.

                              I would believe a 1.xx geared trans would have a little more resistance, a Vdrive possibly a little more.

                              None of them should take two hands muscling it to break it loose and spin.

                              If that is the case and still so after alignment, you've got other issues that need to be looked at.
                              Tim
                              Gone, surfing.

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