terrible whine noise and leaking PV

[gazza2010au]

went out today on my 1997 GSX seadoo i was riding around for about 1 hour than i started hearing a loud whine noise at mid to high RPM what could this be? and can someone point out the seal i need to replace inside of the power valve as mine is leaking oil all over the cylinder and down the side i looked at the parts diagram but cannot figure out what seal needs replacing

cheers

 

[Bills86e]

WHINEs can be counterbalance shaft or jetpump bearings going south. Use your engine Stethoscope or a block to your ear to help determine the origine.

 

[Rampage]

Not sure if the Power Valve and Rave Valve is the same thing, but heres a thread on the Rave's

http://www.seadooforum.com/showthread.php?t=37588&highlight=rave+valve

 

[RFoster130]

Where is the whine coming from? Engine area or rear of the ski at the pump?

 

[gazza2010au]

the pump had very little oil probably enough to keep the bearing from seizing i have since refilled the pump and it went fine today now i have another problem my seadoo gets up to RPM6850+ but only does 42mph the impeller looks fine

 

[Chester]

If there was so little oil in the pump to make it whine, you should replace the bearings. Did you replace the seal and pressure test the pump?

Chester

 

[gazza2010au]

no i just refilled it with oil there was no milky oil so i dont think it was leaking? just lacking maintenance

 

[Rampage]

the pump had very little oil probably enough to keep the bearing from seizing i have since refilled the pump and it went fine today now i have another problem my seadoo gets up to RPM6850+ but only does 42mph the impeller looks fine

does it feel like its cavatating? Does it accelerate real good up to 42?

 

[gazza2010au]

yep it accelerates perfect i have not gone from 0-42mph flat out but no cavitation unless i hit rough water or waves

 

[gazza2010au]

i just pulled the jet pump off look at the bent impeller could this be why i am only seeing 42mph? the wear ring is within spec but has a lot of scrapes and gouges

 

[Chester]

i just pulled the jet pump off look at the bent impeller could this be why i am only seeing 42mph? the wear ring is within spec but has a lot of scrapes and gouges

That's your problem. Get the impeller fixed and replace the wear ring, it's toast.

Chester

 

[RFoster130]

Yeah thats the problem fo sho. That ring is destroyed too.