Survey: Did you know ... every 12 months or 100 hrs?

[Bill D]

So @Bill D, what color was the grease in your bearing/hub? I just want to know what to expect when I open mine up.
thx

Hmmmm, kind of yellowish / beige and kinda creamy? The main thing I was looking for was to see if it was runny and if there was any visible rust or water.

How will will you clean the grease out?

I'm not really sure. I think I remember Cam saying that he put it in a bag and hit it with an air compressor wand. Do you think I should be concerned with removing all the old grease, or is most of it close enough?

 

[Bruce]

@Bill D, see this thread https://jetboaters.net/threads/chan...-and-switching-to-oil-bath-lubrication.10155/

When you remove the cone you can see the grease on the rear side of the rear bearing. There is several inches of space and another bearing beyond what you can access. If you could remove the grease I do not see how you could effectively regrease. I would leave it alone unless there is an issue.

 

[swatski]

Dripped all over myself when I was crawling under the trailer...

That does sound like an age related issue I have to say.


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[Bill D]

@Bruce I don't remember my grease looking quite as green as what is pictured in your post. Is that likely from the water incursion, or should it look that way, and is mine off? If I'm reading your post correctly, you're saying that it would be best to leave well enough alone unless I have to replace the bearings? Do you think it is necessary to add any grease to the cone if everything looks ok?

I'm 100% ok with taking an item off my to-do list!

 

[jpass]

Our Sea Doo boat has a similar requirement. The main reason for inspection is to ensure that the grease is still present and in good shape and also that water isn't getting into the pump internals. If the grease looks good and there's no discoloration or water, you are good to go. I cleaned out the old grease and added new per the manual, but as others have stated, that only addresses the grease on the outside of the outer bearing, the inside and the more internal bearing grease can only be changed by tearing down the pump and at that point, you might as well replace the bearings while you're in there.

 

[Bruce]

@Bill D, the grease in my 2014 and 2016 pictures was 7 and 9 years old. If you do not find water in there I would call it good, put a little grease on the o-ring and put it back together.

No grease has escaped so there is no need to add any.

If you pack the rear bearing you still are not doing anything for the front bearing which is more likely to have an issue.

 

[Bill D]

@MrMoose I pulled the pumps today and took pictures of the cones for reference. I think they look the same as I remembered. Although, sometimes I have on my rose-colored glasses and that can change the hue on things... Either way, 320ish hours.

Starboard


Port

 

[MrMoose]

@Bill D, great pics. Your grease and bearings look really good. Thanks for sharing.
Comparatively speaking, it seems that I had less grease in my cones, but the grease that was in there still seemed to be contacting the bearings.




@swatski, did you have more grease in your cone on your 2016?

 

[swatski]

Seems about the same:


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[MrMoose]

Thanks @swatski.

 

[Bill D]

I almost forgot to mention, on Bruce's recommendation, I just rubbed some grease on the O-ring and closed them back up.

 

[MrMoose]

I almost forgot to mention, on Bruce's recommendation, I just rubbed some grease on the I-ring and closed them back up.

My shop manual said to apply marine grease on the o-ring, so that's what I did.