I have about 60. I bought two at the same time used from fresh water. The other one actually has about 80 hours and is quite. I took out the bearing tube, jet pump coupler etc. and inspected. I couldn't see a problem with any of my seals or bearings.... all are clean and tight. I repacked the bearing with fresh grease, However when I put it back together I took it on a 50 mile ride and it was whining again when I took it out of the water???? Doesn't seem to be getting louder, just louder than the other ski. I think the noise is coming from the jet pump. I have good clearance on the impeller. May just keep riding and pay attention to see if it worsens?
I should clarify. I didn't disassemble the pump, just the cone. I don't have the impeller wrench. When I spin it out of the ski, it makes a very slight noise... I'm sure at a higher rpm it would cause a whine. Do you think I have a bad/going bearing and bad seal behind the impeller I cant see?
That's what I'm guessing as well. Did you change it yourself? I just ordered an impeller wrench and am waiting for it to arrive. I don't believe the bearings/seals are pressed in. If not it shouldn't be too tough.
ordered all of the parts including the shaft for about $130. I am going to press the bearings and seals in myself to save the labor. With that being said I have ridden it for about 140 miles and the noise isn't getting any worse. I will let you know how hard the project is in a week or two.
Yeah, mine has that as well. The bearings that the thread is talking about is the ones in the pump housing. apparently the front seal behind the impeller leaks after a while and makes the bearing start whining.
Just an update. I received my parts after waiting a couple of weeks. Pressed them in myself using a press at my brother's work. Took it out and rode it 45 miles. Beautiful! Sounds like a brand new ski. Thanks everyone.
You can buy the kit at SBT (Short block technologies) for around 60-65. I bought the wrench on e-bay for about 10-15 and I replaced the shaft although it was fine. I replaced it anyway. The biggest part is having access to a press with plenty of pushers for the correct sizes. Also you will want to read a manual to make sure you know how it comes apart since there are a series of snap clips and the assembly is pretty specific as to how to take it apart and put it back together. I'm not telling you this to discourage you from doing it yourself. If you have/know these few things, it's only about 1.5 hour job and can save you a few hundred bucks. Last note, if the noise just started you can probably ride it for a long time that way, just keep clean grease in it. The assembly is ball bearings and they are tough! The noise is simply surface corrosion on the bearings from a bad seal. Mine was making the noise when I bought it and I rode it for about 200 miles before I replaced them.. the noise didn't get any worse it just irritated me. Good luck.