Low power output RXP

[gejettest]

Hello all,
Newbie here, I have a 2006 Seadoo RXP supercharged, during a trip to Lake Mojave I took it a little too close to shore, so I idled it around, but had to use some reverse, naturally I sucked up some sand and rocks, I thought no big deal, (wrong) as soon as we cleared the debris field I accelerated and the ski shook violently, so I kept it under 3,000 rpm and limped back to camp. Shut the unit down, and felt in the impeller area and found a rock stuck in the impeller, source of my vibes. Check the inlet grate, clear. Fired it up and rode it, thought all was good. Seemed low on power. Re-docked it into the ShuttleCraft and couldn't go over 10mph. Normally I can get 30+ out of it.
I understand I wiped out my wear ring, and dinged my impeller.
Questions is:
1) Do I opt for a stainless wear ring?
I found some on Ebay for not much more than the dealers plastic one.
2) Did I wipe out the bearings in the impeller? How do I check to see if the bearings are wiped out? Unit only has 22 hrs, bought new.
I am an aviation engine mechanic, so I plan on doing the work myself.
3) Any suggestions?
Thanks,
Henry

 

[nswillin]

Do not use a metal wear ring. This will cause more problems than you want to have. The wear ring is made out of a material that it is made to wear. If something was to go through the pump, the wear ring is first to go before damaging other more expensive parts.

Take the jet pump off and spin the impeller making sure it spins freely and check for play left and right. Remove the impeller using impeller removal tool. Slide the pump shaft out and take look at the bearings. Looks like yours just has one big bearing assembly so if it is shot, would be easy to replace. :cheers:

 

[gejettest]

Thanks for the info, but since a rock or gravel, sand, etc, goes through the pump, the impeller is going to take the hit on the leading and trailing edges. Why does the plastic ring have to be sacrificed? It seems to me the better you keep the clearances close/within specs the better the performance will be.
Henry