Jet pump problem

[Joe440]

Today I was idling downstream enjoying the scenery and then all of a sudden the motor started making loud noise and the jet stopped pumping. I looked at the shaft and it turns but nothing seems to be happening with the jet pump. Motor starts up but makes a lot of noise. The seadoo is still in the water as I don't have the trailer with me. Any ideas ?



2000 RX 951

 

[- BiRkS_]

Sounds like you might have sucked something up inside the jet pump, or your drive shaft or PTO splines gave out.

Bottom line, ski has to come out of the water to investigate further. Try to beg/borrow a trailer. Whereabouts are you in Van? I have some connections out there.

 

[Joe440]

Sounds like you might have sucked something up inside the jet pump, or your drive shaft or PTO splines gave out.

Bottom line, ski has to come out of the water to investigate further. Try to beg/borrow a trailer. Whereabouts are you in Van? I have some connections out there.

Did some more looking. It seems like the drive shaft is slipping. I guess that's what all the noise is. What is the worst ? To replace the drive shaft or pto splines ?

I have a trailer, no tow vehicle ..... Problem is finding someone to tow on a long weekend.

 

[Joe440]

Update

I looked at the service manual and it shows a rubber bumper stop on each end of the driveshaft.
I have the driveshaft out and it didn't have a rubber bumper stop on either end. The spline shaft seems ok.

 

[frankcottnj]

Also check play in pump impellor to makesure it doesnt' ride up and down excessively causing a loose shaft.
fc

 

[Joe440]

All back together. Will have it back in the water tomorrow after work.

 

[Joe440]

Update:
I replaced the rubber driveshaft bumpers and the bumper at the PTO lasted less than a minute and the driveshaft started slipping again.

I did a search and some people have made a bumper from metal.
I made one from stainless steel and have had success. The seadoo is running as good as it has ever ran.

Any thoughts about using a metal bumper ?

 

[RodInEscondido]

The SeaDoo can wait, take care of the girl in the avatar!

Sorry, I could not help myself.