Greasing impeller bearing.

[Marvin willis]

Are yall filling the cone with grease when greasing the bearing? I just greased boat and jet ski and neither had grease in the cone.

 

[Marvin willis]

I figured people are putting grease fittings on the cone. So what's the difference?

 

[GNX231]

I think a grease fitting in the cone is a great idea. i redid thhe pump on my seadoo a few years back and i filled the entire pump with grease and then the con as well until it looked like an ice cream cone so the bearings are always in grease. no problems since.

 

[justason]

Are yall filling the cone with grease when greasing the bearing? I just greased boat and jet ski and neither had grease in the cone.

What jetski? I was greasing recently And I couldnt find a fitting in my 110hp waverunner.

Dare i ask?.....cone?

 

[Marvin willis]

Yes I think they all have a cone on the end of your prop that you unscrew and grease the bearing. I know on my ultra250x people talk about the bearing going bad and when it does it breaks the crank on the motor Too

 

[KXCam22]

I modified mine with a drain plug and use gear oil. It is known mod in the PWC world. The grease needs to be API#0 which is quite thin grease that flows. Some use a mix of amsoil grease and amsoil gear oil to make a slurry to replace the API#0 grease. You can tell I researched it to death before I did the oil mod. Not sure that you can put a grease nipple on since the trapped air would get forced out the seals. cam.

 

[aarons1k]

My past Seadoo I had to grease the cone when I installed new wear ring , do yamaha use the same set up ?

 

[Marvin willis]

I just used reg marine grease. I thought about the oil mod but I like to take it apart and visually see that the bearing looks ok

 

[Big Shasta]

I went with the gear oil mod when I rebuilt mine. There are also topics where people put a plug in the cone so the oil can be changed easily but you still have to pull the pump to do it.

https://jetboaters.net/threads/impeller-bearings-trashed-lots-of-rebuild-pics-pg-6.2822/page-6