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  1. #51
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Doo bolt pattern on stx shoe.

    Sean
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    Last edited by smokeysevin; 10-01-2019 at 08:07 PM.

  2. #52
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    I need to measure the doo transom plate and see what the bore of the pump seal is. I am giving some thought to using an oem doo carbon seal setup and cutting the kawasaki hull for a larger thru hull fitting. This would use an oem doo shaft (rxt length) and run a pump adapter to bolt the doo pump onto the 15f shoe. It seems like this is the most robust setup and I won't need to sweat as much about the shaft components being machined and balanced.


    Given that I know the ultra 155 pump fits the tunnel and the doo pump is not that much different I don't see any major issues fitting stuff.

    The only hurdle I see is getting the correct amount of cooling water to the engine. The kawasaki setup uses either 2 or 3 barbed fittings, all 1/4" npt. The seadoo pump looks to have one fitting in the pump and an aux fitting on the nozzle. I think I can plug the fitting in the pump where it connects to the transom seal on the rxtx and just run 3 1/4" npt fittings like the solas doo pump does, then plug those into the kawasaki thru hull fittings.

    Sean

  3. #53
    Moderator beerdart's Avatar
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    I like where your headed with the doo pump. Here is my Doo pump for the Polaris MSX anything is possible. Water flow from the doo pump should be fine as its restricted with a orifice washer at the shoe.
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  4. #54
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quote Originally Posted by beerdart View Post
    I like where your headed with the doo pump. Here is my Doo pump for the Polaris MSX anything is possible. Water flow from the doo pump should be fine as its restricted with a orifice washer at the shoe.
    I have you, GGG and Kosh to thank for that one. Spent way too much time today reading through y'alls threads.

    Approximate bolt positions of kawasaki and doo pump (harbor freight calipers and boogered out inserts).




    Sean
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  5. #55
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quick and dirty mock up, green is the kawasaki stx shoe, blue is the adapter, yellow is the doo 159 pump.

    I am hoping I can get this water jet cut to rough size and then knock the rest out on the mill with a rotary table for the center.

    The blue piece will have 2 grooves cut in the lip that sticks into the kawasaki shoe for o rings.

    Currently the whole adapter is 60mm thick and fits on a 200 x 300 mm rectangle.

    The spacer/adapter also only adds 20mm to the length of the pump assembly which actually keeps the pivot point in roughly the same point as with the ultra pump interestingly enough.

    Sean
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  7. #56
    come on man you're not gonna 3d print it first, what are you a caveman!? hahaha


  8. #57
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    Quote Originally Posted by mwhc View Post
    come on man you're not gonna 3d print it first, what are you a caveman!? hahaha
    What am I made of money Mike? This mockup is getting printed on paper, glued to some mdf, cut out with a dull jig saw blade, and nailed together using "reclaimed" nails from my neighbors fence.

    Sean

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  10. #58
    This is how I run a jetski shop in the desert nmpeter's Avatar
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    Sean, is inevitable!



  11. #59
    My name is Sean and I am addicted to STXs smokeysevin's Avatar
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    I got some of the carbon seal parts in the mail today and I got to playing with the bellows. Based on some reading you are supposed to install the bellows assembly then add preload to the setup by scrunching the bellows towards the motor and tightening the hose clamp.

    On the 08 RXT-X like I have for a donor, there is an insert that the bellows clamps onto but its not adjustable radially to center the shaft. It looks like later model doo's have slotted holes to center the carrier and reduce wear on the seal setup (in theory).

    I like the idea of using the newer model doo thru hull support piece because it is a factory part already made for that purpose. I also like the price of it which brings me to my question: What is the difference between the early and later model bellows for the carbon seal? The carbon seal looks to be the same part number, am I missing something obvious here?



    Thanks,

    Sean
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  12. #60
    thickness on the newer ones put more pressure combined on the carbon seal and "hat".... IMO it help with the shitty alignment from the factory but essentially they're the same if i understand your question right


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