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  1. #11
    ArhAlex's Avatar
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    made a nail file of 1.5 mm, then a screwdriver neatly picked up
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  2. #12
    Some People say that the 2018 Shaft is one Piece now as well as the Volute...can someone confirm this ? some Pictures ?

  3. #13
    Dg1148's Avatar
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    Quote Originally Posted by BRP View Post
    Some People say that the 2018 Shaft is one Piece now as well as the Volute...can someone confirm this ? some Pictures ?
    How many threads are you going to ask in? Another member confirmed in the other thread that he replaced his 2018 shaft because it wasn't.

  4. #14
    I have a 2019 gp 1800 - new - will change the supercharger impeller - but how can i see what kind of shaft it has? Do i need to replace it?

  5. #15
    Thank you k447. Excellent tutorial

  6. #16
    gprdanny's Avatar
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    Nice write up. I had my buddy do mine on a mill. Didn’t wanna take a chance on damaging my wheel.

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  7. #17
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by gprdanny View Post
    ... I had my buddy do mine on a mill. ...

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    Are those recessed screws threaded parallel to the volute throat axis?

    How do they clamp the volute sleeve into the surrounding housing?

  8. #18
    gprdanny's Avatar
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    Quote Originally Posted by K447 View Post


    Are those recessed screws threaded parallel to the volute throat axis?

    How do they clamp the volute sleeve into the surrounding housing?
    Yes they are parallel to the throat.
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  9. #19
    Click avatar for tech links/info K447's Avatar
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    Quote Originally Posted by gprdanny View Post
    Yes they are parallel to the throat.
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    Wow, the volute was pressed out of the housing to do the work.

    Seems like a lot of extra trouble compared to doing the ‘normal’ volute pinning method, which is also the method used by Yamaha factory in prior years.

    I just pinned another SVHO supercharger yesterday, and the actual pinning process (after removing it from the engine and unbolting the front housing) took maybe 30 minutes, working slowly.

  10. #20
    gprdanny's Avatar
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    Actually the volute fell out. Its a trend i think we will start to see more and more in the coming years. No extra trouble and took my buddy less then a hr to do.

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