rebuilding the jet pump on a 1996 Seadoo GSX

[cmeseadoin]

Hey guys,

I have a 1996 seadoo gsx with the 787 and she's got about 290 hours on it. I have owned it for the past 11 of it's 13 years and it has been immaculately cared for and only run in fresh water. It looks like bran new inside and out, but it is time for some work that has never been done. Part of what it is.... I am installing a new wear ring as I took off the nozzle and pump and there are a few areas where the ring is gone but overall not horrible. I don't think it has ever seen a new one. I have the pump on the bench and have ordered all my parts from SBT including a tool to pull the impeller. It seems that all I do is unscrew the impeller by locking the flat shaft of the pump in a vice and turning the tool counterclockwise as to unscrew. I cannot wait to see how tight that thing is screwed on as the whole time you throttle up she's trying to tighten more LOL! Once I get that off, I am going to have to saw and cut carefully the old wear ring out.

(P.S> I know this is a total no no in most cases, but if I get that pump shaft locked in a vice, is there any harm done by running an impact gun on the impeller removal tool in several quick sharp blows to break the torque seal and break her loose?...With the tool in there, the splines should be able to hold up to that?)

Another question is, once I get the impeller out, does taking the impeller out mean that it automatically needs a jet pump rebuild and to replace all bearings in the pump that are behind that impeller? Probably a good idea with 290 hours on the ski? How do you tell specifically if this needs to be done? Also, I have ordered up the jet pump rebuild kit for it, but it seems that special tools are needed to pull and install the new bearings/seals and whatever else is behind there. Can someone tell me what tools this is and where I can purchase them? I am highly mechanical and I can do the job if I have the tools. I did not see jet pump service tools on SBT but maybe I did not search correctly?

Any information would be greatly appreciated...thanks guys:cheers:

 

[gsxgtxman]

you don't have to rebuild the pump if all the bearing are in good shape. Replace wear ring, and inspect the impellar for wear. Replace if needed.

There is a parts tab at the top right of the forum, for sea doo parts warehouse and they have just about everything.


P.S. Don't use the impact, you don't need it!!!!!!!!!!!!!!!!!!!!!!!!!!!

 

[cmeseadoin]

Just thought I would update the progress.....got it all done tonight. The wear ring was a piece of cake to replace. I got home from work and my package of goodies was here from SBT...I pulled out my impeller removal tool and easily removed the impeller. I then used a screwdriver to pry out the top ring on the stock wear ring and as it de-laminated, I was able to eventually pull all the surface material off of the harder part in the center. I used a dremel with a cutting bit to cut a kerf in the wear ring all the way from the bronze vanes to the egde of the outter wear ring. No damage to the plastic cone at all. Once I had my cut in it, I used a screw driver to pop it separate and then grabbed it with a big pair of needle nose...then twisted the whole old ring right out. My new ring had been in the freezer for 5 days, slipped right in so easily it was not funny....warmed up and was night and tight. Reinstalled impeller and whole ski back together. Got my rave rebuild kits today too, did all that and the carbs have been rebuilt.....hooked up hose, grinded starter for a few to fill carbs, engine fired....lookin good. Water testing tomorrow......Im outta time, lata'

 

[timmyboy76]

5 DAYS....i would've used as a beer mug, after that long....:lols:..:cheers:

 

[cmeseadoin]

5 DAYS....i would've used as a beer mug, after that long....:lols:..:cheers:

LOL! Yep...I had to wait on my impeller tool and other parts to come, so I could not do it yet anyways....so it sat in the freezer and man, went in EASY as cake