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Intermediate bearing housing

Discussion in '2016 Yamaha Boats' started by Stevenpigsooie, May 5, 2018.

  1. Stevenpigsooie

    Stevenpigsooie Well-Known Member

    Messages:
    100
    Location:
    Beaver Lake, Arkansas
    Ratings:
    +105 / 1
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    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.
     

    Attached Files:

  2. boudin

    boudin Well-Known Member

    Messages:
    299
    Location:
    Lake Livingston, Texas
    Ratings:
    +218 / 8
    Boat Make:
    Yamaha
    Year:
    2008
    Boat Model:
    AR
    Boat Length:
    21
    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
     
    • Agree Agree x 2
    • Like Like x 1
  3. rsg1963

    rsg1963 Jet Boat Addict

    Messages:
    330
    Location:
    Dublin, Ca.
    Ratings:
    +203 / 2
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    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.
     
  4. swatski

    swatski Jetboaters Fleet Admiral

    Messages:
    7,553
    Location:
    Saint Louis, MO
    Ratings:
    +8,117 / 122
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    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.

    --
     
    • Agree Agree x 2
  5. ttzz

    ttzz Jet Boat Addict

    Messages:
    371
    Location:
    Oronoco, MN
    Ratings:
    +400 / 9
    Boat Make:
    Yamaha
    Year:
    2017
    Boat Model:
    X
    Boat Length:
    21
    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.
     
    • Agree Agree x 1
  6. Stevenpigsooie

    Stevenpigsooie Well-Known Member

    Messages:
    100
    Location:
    Beaver Lake, Arkansas
    Ratings:
    +105 / 1
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    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.
     
    • Like Like x 3
  7. rsg1963

    rsg1963 Jet Boat Addict

    Messages:
    330
    Location:
    Dublin, Ca.
    Ratings:
    +203 / 2
    Boat Make:
    Yamaha
    Year:
    2016
    Boat Model:
    AR
    Boat Length:
    24
    May! LOL. Considering this was about leakage I suppose we were a little late to the game. :)
     
  8. Cobra Jet Steering LLC

    Cobra Jet Steering LLC Jetboaters Admiral

    Messages:
    2,953
    Location:
    Florida
    Ratings:
    +2,708 / 55
    Boat Make:
    Yamaha
    Year:
    2014
    Boat Model:
    Other
    Boat Length:
    Other
    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.
     
    • Informative Informative x 2
    • Agree Agree x 1

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