Water Pump Rebuild: 'How to'..........

Discussion in 'Crazy-Awesome almost Dakar racers (950/990cc)' started by Pyndon, Dec 11, 2006.

  1. Pyndon

    Pyndon Long timer

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    All,

    Tis the season to be jolly and here is my gift to you all, or those that need it anyway :wink: .

    I have bebuilt the water water pump on my 950 and documented it at the request of many. Hope you find it useful.

    This is just an informative link, please post replies to my main thread.

    http://www.advrider.com/forums/showthread.php?t=147440&page=24

    Thanks and all the very best for the festive season.

    :1drink
    #1
  2. RED CAT

    RED CAT Bumpy Backroader

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    Great thread. Thanks. Am storing in favourites for later. Thanks a bunch.
    #2
  3. cpmodem

    cpmodem Orange Caveman

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    Thanks :bowagain for the hard work you have put in for this forum in this past year Pyndon.
    -cp
    #3
  4. jsrider

    jsrider Long timer

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    Totally awesome! :clap

    Nice torque wrench, by the way. :D
    #4
  5. Zen Slug

    Zen Slug Spineless Adventurer

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    pyn,

    i think the link is busted:dunno
    #5
  6. djmase

    djmase something catchy.

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  7. fast4d

    fast4d Long timer

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    thanks for your write up. it was easy to follow and your advice of using the oven while the spouse is away is priceless.

    my impeller looks shaved down. 18k miles. the shaft and seal appear ok.



    [​IMG]
    [​IMG]
    #7
  8. Leodis41

    Leodis41 I wanna Orange one!!

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    Ouch! That doesn't look right. I have never seen that on anybody else'e rebuild.
    Was there any debris in the impeller housing?:huh
    #8
  9. fast4d

    fast4d Long timer

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    no debris other than the casting sediments

    this came from superduke R. another owner told me his looked the same after his WP broke and dealer replaced it under warranty.
    #9
  10. Head2Wind

    Head2Wind MotorcycleMayhem

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    is it possible to have installed the 09 shaft? the 09 shaft is longer and requires a different impeller and cover. I will run out to the shop and measure the two for verification... back in a sec...

    one way is if the inner bearing was not pressed in all the way, but then the large inner clip would not of been able to engage the cover.... impeller could have been loose on the shaft? or not seated all the way down?
    #10
  11. Head2Wind

    Head2Wind MotorcycleMayhem

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    Water Pump Shaft lengths:

    early model 03-08 length: 33.4mm

    current model 09-10 length: 34.6mm
    #11
  12. jsrider

    jsrider Long timer

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    IIRC a few folks had problems with loose impellers on the early bikes and had similar ground-down impeller blades.
    #12
  13. fast4d

    fast4d Long timer

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    my pump shaft measures 34.7mm

    bike's manufacture date is 3/2008
    #13
  14. Head2Wind

    Head2Wind MotorcycleMayhem

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    that is the current model shaft 34.65mm was my measurement on the shaft that I pulled out of the box that is supposed to be for a 09.

    The impeller that you have pictured appears to be a "early" version.. which is weird if its running a 34.65 shaft. but then that might explain why the impeller is showing wear.
    #14
  15. skianreid

    skianreid Boulder Moto

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    :1drink
    #15
  16. Masa

    Masa Been here awhile

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  17. rubRsidedown

    rubRsidedown Long timer

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    GREAT writeup.
    So great, I THINK I could even do it. :evil
    #17
  18. DiRtsoUP

    DiRtsoUP Sweatychef

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    Oh Man!...I'd definitely lose stuff in the process. Ahh but what the hell eh...a few lost/reused gaskets & bolts here and there should be fine :wink: Just like the sealer's would do. Great blow by blow thanks for posting...now I need a few weeks to think about doing it myself.
    #18
  19. crashmaster

    crashmaster ow, my balls!

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    No need to think, just dive in. Its really pretty straight forward, just set your laptop in front of the bike and have at it.

    The first time might take you a little while as you learn your way around the parts, but the second time goes way quicker. Hell, I did one in a campground in the middle of the Atacama without a lot of cursing and tool throwing, and if i can do it, anyone can. :lol3

    Pay close attention to how that head pipe comes out from under the frame, because there will be a test a little bit later on. :lol3
    #19
  20. Katoom119

    Katoom119 Mmmm....Orange Kool-aid

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    +1

    I had never in my life broken into an engine further than the oil filter. I had never even taken a clutch apart. I pulled it off by paying CLOSE attention and followed Pyn's example step for step.

    If in doubt, stop, look it up, or ask. We'll get you through it.
    #20