Mercury Mark 6 Drive Shaft Repair?

Home Forum Ask A Member Mercury Mark 6 Drive Shaft Repair?

This topic contains 3 replies, has 3 voices, and was last updated by Buccaneer Buccaneer 4 years, 2 months ago.

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  • Buccaneer
    Buccaneer
    US Member - 1 Year
    Replies: 2978
    Topics: 833
    #1251

    While working on the Mercury Mark 6 water pump, I noticed
    my temporary repair on the drive shaft "seal area" with JB Weld,
    was much more temporary that I would have guessed. Since the
    repair, it has a total of about three minutes running time,
    and the JB Weld was already wore out of the original grooves
    in the seal area.
    I was trying to think of an economical repair that I could do myself.
    Looked up speedi-sleeve, and redi-sleeve, and the smallest
    size they show is .469 and .500 respectively.
    The drive shaft diameter at the seal area is .454 thousands.

    I have a link to a photo of my spare drive shaft, which looked
    worse that the one I used. There’s two sealing areas on the
    drive shaft. One just above the clutch spring, and one
    above the water pump area (where the drive pin hole is).
    Any ideas welcomed, Thanks, Buccaneer
    http://grayhitandmiss.com/Outboards/mk6driveshaft.jpg

    Prepare to be boarded!

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    dave-bernard
    US Member - 2 Years
    Replies: 845
    Topics: 10
    #14235

    call me 1 914 310 7086

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    westwind
    Canada Member - 1 Year
    Replies: 334
    Topics: 8
    #14236

    Although I haven’t tried it myself, I’ve heard that brazing the shaft and then polishing it down to smooth it out, works fairly well.

    Buccaneer
    Buccaneer
    US Member - 1 Year
    Replies: 2978
    Topics: 833
    #14269

    Dave, I sent you a PM.

    Westwind, brazing is something I could do. Suppose the
    grooved area would have to be V’eed out and cleaned up
    a little. Could chuck it in the lathe, cut down the braze
    close, then emory cloth it smooth.
    Not sure what the heat from the brazing would do to the strength
    or temporing of the shaft though?
    Thanks,

    Prepare to be boarded!

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