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I'm No Expert
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Discussion Starter #1
Seadoo's pump intake is the hull, anybody know if the bolt pattern for the pump changes at all over the years for if basically any year seadoo pump will fit any other seadoo pump? I have a 90 seadoo bombardier i'm going to be cutting the intake out of for my project and i have most of the pump but missing the nozzle. Not a big deal but i'm just curious if this stuff is just standard stuff or if each year somthing different was desiged.
 

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jetboataholic
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Seadoo's pump intake is the hull, anybody know if the bolt pattern for the pump changes at all over the years for if basically any year seadoo pump will fit any other seadoo pump? I have a 90 seadoo bombardier i'm going to be cutting the intake out of for my project and i have most of the pump but missing the nozzle. Not a big deal but i'm just curious if this stuff is just standard stuff or if each year somthing different was desiged.
So you decided to go with a jet ski pump.:D Should push that little boat just fine. What are you going to do about an engine? Are you just going to plant the Seadoo engine in there too? Good luck with the project.
 

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One part at a time...
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463 Posts
So it is a nozzle you need? the older models pretty much all had the same nozzle systems. As long as you look for one that is pre 2000 or somewhat closer to the year you have they should be the same. Let me know the exact model you have and I can probly find you the one you need or tell you what to look for. I have worked on many of these machines and worked at a bombardier dealership as a certified tech. John.
 

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I'm No Expert
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3,139 Posts
Discussion Starter #4
Ya it's the nozzle. The seadoo is a 1990 bombardier, not sure the exact model. THe motor looks like it was a a 550 or somthing but i cant say for sure. I'm just compairing it's size with my js550.

here's the front half of it.



Any idea how much HP these things had?

Also i'm trying to get this pump off the back, how do i get the pump apart, looks like i need to have a tool to hold the front spline while i use a wrench on the back. I found a diagram that looke like the hole shaft unscrews and slides out. Also i pulled the nose of the pump off and some black grease/oil came out... fucking smelled horrible!!
 

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One part at a time...
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Ya that Sea-Doo pump oil STINKS!!! You need a spline tool to fit into the impeller. If you have a vice, clamp the oil side in it and use the tool to remove the impeller.

http://www.rivayamaha.com/RivaStore/product_page.asp?Category=SD Impeller Toolshttp://cgi.ebay.ca/SEADOO-KAWASAKI-IMPELLER-PTO-TOOL-REMOVER-NEW_W0QQitemZ140225958071QQihZ004QQcategoryZ26455QQtcZphotoQQssPageNameZWDVWQQrdZ1QQcmdZViewItem

The one at the top (TOOL33) is the tool you need. If you have a powersports shop anywhere close they can get you the tool also. You'll need a bottle of the Sea-Doo pump oil and usually a new o-ring. Coat the o-ring and flange with locite 518/flange sealant when you put the cone back on. Anti-seize on the threads of the impeller bolt and about 80 ft lbs for re-assembly. Why are you taking it apart? Is the wear ring and impeller worn?

Oh and those 587 motors (if thats what you have) are 85 hp I believe. Let me know any more qeustions you have on rebuilding it.
 

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I saw the pics of the rear of the seadoo hull in the other thread. I was just wondering if you got the pump off the hull. I usually is siliconed on there as well as bolted so it can be tricky to get off.
 

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I'm No Expert
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Discussion Starter #8
I didnt get the pump off yet, i figured i needed to pull the impeller nut and stuff before it would slide off but i may be wrong.

WHen looking in the intake the shaft has rust on it so i was thinking i need to pull the shaft and clean it up, is the shaft hard to pull/reinstall?

I'm pulling the pump just to get it out of the hull so it's lighter, easier to work with, and also so i can inspect it. THe impeller looks alittle beaten up too figured i may need to straighten/file on it a bit and sharpen it up too... maybe just get a new one.
 

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B1 Racing
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6,523 Posts
yes. keep in mind that is an axial flow jet, it wont feel like your jetboat. if you have ever been on a jetskii you will know what i mean.

Not sure what your using for a motor but the Kawi Ultra 150 has a mixed flow pump that works real well.
 

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One part at a time...
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The shaft should pull right out. Usually you can clean up those impellers easily with a die grinder or a file. They don't need to be razor sharp. I'll try and find you an online manual. Post some pics of the pump and shaft and I might be able to give some more pointers.
 

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Ya the pumps for those years were pretty much all the same. The impellers changed depending on what motor you had. Different pitch etc.
 
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