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Intermediate bearing housing

boudin

Well-Known Member
Messages
312
Ratings
230 8
Points
58
Location
Lake Livingston, Texas
Boat Make
Yamaha
Year
2008
Boat Model
AR
Boat Length
21
#2
Looks like it might have been over greased? Did you add grease via the grease nipple?

The bearings are hermetically sealed and require no additional grease... ever. The grease in the housing only helps provides a water barrier inside the seals. If you are not seeing any water in the engine compartment, I would just wipe up the excess with a rag and then just run it.

-Greg
 

rsg1963

Jet Boat Addict
Messages
330
Ratings
206 2
Points
93
Location
Dublin, Ca.
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
#3
Yeah, looks like over greasing of the bearing housing surround. I usually give mine one or two pumps per year and that's it. No excess when I've done it.
 

swatski

Jetboaters Fleet Admiral
Messages
8,558
Ratings
9,206 137
Points
493
Location
Saint Louis, MO
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
#4
Is this a leak? I didn’t notice any problems last season and never had water in the engine compartment. Changing oil today and looked around and found this on both engines.
This has happened in many boats, without any ill effects. In theory, could indicate a blown seal in the bearing housing (not the bearing seal itself) but the only role for that grease there is to keep water away - so if there are no leaks there is nothing to worry about.

--
 

MidnightRider

Jet Boat Addict
Messages
511
Ratings
562 11
Points
118
Location
Oronoco, MN
Boat Make
Yamaha
Year
2017
Boat Model
X
Boat Length
21
#5
I actually had a small amount drip out from factory even before I did my 10 hour, wiped it up and never saw anymore. Yours looks quite a bit worse, most likely from over fill but as others are saying, as long as there isn't any water, wipe it up and drive on.
 

Stevenpigsooie

Jet Boat Lover
Messages
104
Ratings
109 1
Points
73
Location
Beaver Lake, Arkansas
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
#6
Thanks for the replies. I posted that in May before this season really got going and haven’t had any issues now after 4 months of use.
 

rsg1963

Jet Boat Addict
Messages
330
Ratings
206 2
Points
93
Location
Dublin, Ca.
Boat Make
Yamaha
Year
2016
Boat Model
AR
Boat Length
24
#7
May! LOL. Considering this was about leakage I suppose we were a little late to the game. :)
 
Messages
3,236
Ratings
2,974 93
Points
268
Location
Florida
Boat Make
Yamaha
Year
2014
Boat Model
Other
Boat Length
Other
#8
It is best to leave those alone completely, if you over grease that you risk separating the rubber from the aluminum housing and then you will have a real issue, I have over 650 hours on mine and since I do not grease them I have yet to have an issue with them. You can remove the grease fitting and insert a piece of line trimmer string to take a sample of the grease and see if it is ok or has water, if it looks ok put the fitting back and don't mess with it.
 
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