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  1. #1

    Intermidiate shaft greasing question

    I just got all the old crappy grease out of my pump system on my 97gp. The intermediate housing is made of basically 2 pieces, one with the shaft and bearings and the other is just the mounting plate fill with grease. What I wanted to know was, when I pump grease into the zerk for the intermediate housing it is supposed to flow through the seals, (under pressure), and into the mounting plate and then into the intake duct. Is this correct?


  2. #2
    Moderator OsideBill's Avatar
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    Metal when you say into the intake duct do you mean to the shaft spline?

  3. #3
    No, I mean into the area of the intake duct that the drive shaft goes through. the drive shaft slides into the intake duct from the rear and there is a whole cavity that Yamaha says to fill with grease.

    It is kinda hard to put this into words. But really my question is that when I pump the intermediate shaft with grease it is supposed to fill the housing then squirt out of the seal into the mounting plate then into the intake duct cavity.

    Is that correct?

  4. #4
    Hydrotoys's Avatar
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    Isn't that area just open to the water?

  5. #5
    Moderator OsideBill's Avatar
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    From my interpretation of the manual pg 113 it shows the shaft installed in the duct housing then you fill the cavity with grease from the open end of the housing. it appears that there is some type of seal at the rear of the housing for the grease but I have not found anything more about it yet.
    The intermediate shaft bearing is a sealed unit both sides this will not fill grease into the open cavity of the duct housing.

  6. #6
    Old Ski Insanity w/rpm500's Avatar
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    I use the teflon/quicksilver in this area(in a nice squeeze bottle or tube)

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