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Thread: rxt rebuild...

  1. #1
    hero's Avatar
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    rxt rebuild...

    ive had my ski for almost 1 year now and it started off with just a prop and cold air intake, then next thing u know i upgrade to a x charger fizzle cooler,injectors and SDC ecu, thinking it would stop there. guess what it didn,t..
    heres a few pictures of the ski and parts i has now
    my mods are
    2rude charger
    vtech remap
    60lbs
    ferrea valves
    SDC titanium retainer
    rotax racing spring spacer
    fizzle intercooler
    riva grate
    riva ride plate
    riva pro block off
    04 cam
    rad torque plate
    thru hull exhaust
    mod and shorten water box
    x steering


  2. #2
    hero's Avatar
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    blow my head gasket a few weeks ago got it replaced and went back on and manage a


    during the weekend i decided to do a compression test cylinder 3 125psi cylinder 2 and 1 150psi, so i sprayed wd4 into cylinder 3 and got 150psi which gave me a indication that the rings a warn.Put a bore scope down the cylinder and saw score marks on the wall, this was from the tiem when i blow the headgasket and leaking water into the cylinder.
    so looks like the engine will need a rebuilt.
    placing an order on the online store right now and removing the engine out tomorrow.

  3. #3
    hero's Avatar
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    removed the engine and didnt take long at all, disasembling the motor time


    removed the pump and drive shaft and found that my shaft was rubbing the carbon sell, never had a carbon seal issue or water leak but it did cavitate a lil on take off..waiting on the SWM pump extention and rxtx drive shaft also ordered the speedfreak bellow.



    as u can see the shaft rubbing on the carbon seal..

  4. #4
    Sayers's Avatar
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    Looking good Kiet.

    You've got a lot of work ahead of you. Good luck.

  5. #5
    Sayers's Avatar
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    Quote Originally Posted by hero View Post
    blow my head gasket a few weeks ago got it replaced and went back on and manage a


    during the weekend i decided to do a compression test cylinder 3 125psi cylinder 2 and 1 150psi, so u sprayed wd4 into cylinder 3 and got 150psi which gave me a indication that the rings a warn.Put a bore scope down the cylinder and saw score marks on the wall, this was from the tiem when i blow the headgasket and leaking water into the cylinder.
    so looks like the engine will need a rebuilt.
    placing an order on the online store right now and removing the engine out tomorrow.

    Get a decent GPS mate. The phone apps can be a little inaccurate at times.

  6. #6
    hero's Avatar
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    Quote Originally Posted by Sayers View Post
    Get a decent GPS mate. The phone apps can be a little inaccurate at times.
    ive notice when i tryed other apps but the speed box apps was close to the garmin gps and my navman gps...

    paul im already scratching my head when i pulled the motor apart.

  7. #7
    Sayers's Avatar
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    I think generally the apps are close but I seen some spikes compared to my Garmen. If you've confirmed your 80.3 you've got that thing moving bud. Cant wait to see how you go after a freshen up.

    Wait untill you dry fit the plate and grate up, fun fun.

  8. #8
    hero's Avatar
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    accually the navman satnav was reading a lil higher, i ran 80s a few time and constant hi 79s
    plz dont tell me about the plate how much did u have to take off...
    doing the 08 supercharge oiling mod


  9. #9
    Sayers's Avatar
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    Quote Originally Posted by hero View Post
    accually the navman satnav was reading a lil higher, i ran 80s a few time and constant hi 79s
    plz dont tell me about the plate how much did u have to take off...
    doing the 08 supercharge oiling mod

    Took shitloads off. Mostly off the left hand front mounting surface of the plate. Started with the file thinking I'd take it slow. Ended up with the grinder. Must have dry fitted it with the grate and girdle 6 or 7 times.
    You might be lucky and it won't be too bad of a fit.

    Yeah the 08+ oiler is a must.

  10. #10
    hero's Avatar
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    not looking forward to that at all from the sounds of it...
    lucky this problem happened at the end of the season.

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