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2000 200hp Saltwater series 2 stroke waterpump kit missing washers

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  • 2000 200hp Saltwater series 2 stroke waterpump kit missing washers


    Bought an OEM Yamaha waterpump service kit.Missing was the washers and plastic washer retainer.2 flat, 1 wavy, and plastic slit washer retainer...all missing from the kit.Is it an acceptable practice to reuse the old ones if in usable condition?? The kit seems to be very complete with replacement key and studs which I didnt assume were necessary.However I do assume the washers are necessary.I am new to Yammys so help me out here if you have done this before.Thanks Charlie

  • #2
    Folks replace JUST the impeller at times, re-using the above mentioned parts.

    If the old parts (those washers, etc) are fine, it won't hurt to re-use them.. ]

    Rubber gaskets, those, I wouldn't re-use depending on age..

    Make sure you pull up on the drive shaft while tapping the washers downward-
    (To keep the driveshaft from going slightly up and down and making an annoying knocking sound).


    .
    Scott
    1997 Angler 204, Center Console powered by a 2006 Yamaha F150TXR

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    • #3
      [QUOTE=TownsendsFJR1300;n228247

      Make sure you pull up on the drive shaft while tapping the washers downward-
      (To keep the driveshaft from going slightly up and down and making an annoying knocking sound). QUOTE

      THANKS,i saw that tip on youtube however didnt see it in the clymer manual.I have done Mercruiser waterpumps dozens of times and the kit also includes the entire pump housing and not just the ss cup.I cant see replacing just the impeller .If you are going through the trouble of taking everything apart it makes common sense to replace everything for a few bucks more.You are doing the exact same amount of work by reusing the old parts.Charlie

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      • #4
        they include some things and exclude others that we think should be included some times in different kits, not just the water pump.
        if the housing looks melted buy a new one
        that plastic retainer might be one to get new if damaged while removing.

        I found orings missing from carb kits before and was told to just buy what you need when you need it, sounded not to bright to me.
        it is what it is, we just have to live with it all

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        • #5
          Just to clarify, as you pointed out, your already there, replace most everything (cept the housing un-less it's damaged as it's not included in the Yammy kit).

          Can you re-use the retainers as you asked, yes, as long as their in good shape (and un-damaged when removing)..

          You'll find those retainers work VERY WELL when you try to remove them(go around slowly and gently pry up all the way around a lil at a time).

          I use an open end wrench that just slips around the drive shaft. Supporting it parallel, I gently pull up on the
          shaft while tapping down (and rotating the drive shaft) on the wrench end. That get's it good and snug..


          FYI, from my Yamaha manual:


          Capture.JPG






          Last edited by TownsendsFJR1300; 3 days ago.
          Scott
          1997 Angler 204, Center Console powered by a 2006 Yamaha F150TXR

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          • #6
            Nice diagram,Thanks guys!!

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            • #7
              I find slot of yammy pump housings melted. BAD design . Charles look under the wear plate and the POS plastic dust cap (black) and check the small ss seal spring. They go bad often in da salt. The pump housings usually melt at the top of the housing on the inside above the "cup"... if replacing remove the very top, black water outlet seal and install to new pump housing.. I always grind down the new keyway and install with"Tripble guard grease" when install the two O rings above the cup I use Gas

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              • #8
                Grrr. Gasgacinch or OMC gasket compoud

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