[poser]

I have a few questions on reassembly of the jet pump: shaft, impeller, bearings and seals.

1. There are 2 seals that separate the impeller from the bearings, one is skinner than the other and looks to be closer to the duct. Which way do they face [the manual is not clear]?

2. What are you guys using to press the bearings on the shaft?
I was thinking about using some PVC pipe and a dead blow hammer

3. The manual says to fill the space between the bearings with grease. What type of grease are you guys using? regular axle grease? or marine grade grease?

I think that's it for now
thanks!

 

[poser]

one more...

I bought a wear ring, but the manual or parts breakdown doesn't show one. do I need to return it?

 

[Ernest T]

1. Is this on your FX? On the FX HO the more open end of the seals face towards the rear of the ski. I suspect it would be the same on the FX, but don't know for sure.

2. Best way to install the bearings is to freeze the crank overnight in the freezer (don't tell the wife). Then heat the bearings lightly in the oven (some use a heat gun), and they will slide right on.

3. You want to use waterproof marine type of grease.

4. The FX HO (and I suspect the FX as well) does not have a separate wear ring. Basically, the impeller housing is the wear ring (stainless steel). You can buy aftermarket housings that do have a replaceable plastic wear ring inside, that can be changed out when it wears out. There are pros and cons to the plastic wear ring. I probably would not recommend one unless you ride where you are picking up lots of small rocks etc. through the pump.