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Thread: Removing Westerbeke/JS Reverse Gear Coupler

  1. #1
    Join Date
    Jan 2007
    Location
    Brewer, Maine
    Posts
    113

    Default Removing Westerbeke/JS Reverse Gear Coupler

    I'd like to remove the reverse coupler plate for re-facing from my Westerbeke 20B-two with a JS transmission. As you can see from the photo, the nut is locked by a keeper ring which has been bent into a notch in the shaft. I hope that there is an elegant strategy for releasing the nut rather than hammering on the keeper ring with a screwdriver and risk damaging the transmission gears. Please educate me!50C0C502-E6F2-44B6-B584-67E425406494_1_105_c.jpg

  2. #2
    Join Date
    Oct 2008
    Location
    Walney, near Cumbria UK
    Posts
    55,844

    Default Re: Removing Westerbeke/JS Reverse Gear Coupler

    They hammered it in without damaging anything, so you can hammer it out. But please make a drift, rather than abusing a screwdriver.
    Putting a dolly (big heavy hammer) against the edge of the flange to absorb the shock will be helpful, but will require a second pair of hands.
    It really is quite difficult to build an ugly wooden boat.

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  3. #3
    Join Date
    Jun 2003
    Location
    Central Coast, Ca
    Posts
    32,908

    Default Re: Removing Westerbeke/JS Reverse Gear Coupler

    I would just put an impact gun on there and spin it off. It won't do anymore damage then buggering the threads with a drift.I have done this more than once with no ill effects. If you are really concerned use a wee 1/8" burr and grind the material out of the slot.
    (This is a pretty common locking technique and the shaft is harder then the nut)

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