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  1. #1
    Join Date
    Apr 2010
    Location
    saskatchewan, canada
    Posts
    321

    Default drive shaft brass key

    Yesterday I was out on the lake doing some surfing, turned to pick up my rider and there was a click and all of a sudden It was like the boat was in neutral.

    We had to be towed to the dock, I was super concerned that I had damaged the tranny or v drive. I put the boat up on my boat lift to find that the drive shaft had come out of the coupler?? I happened to have friend at the lake who is a mechanic and he came and had a look at it, he promptly took the coupler off and found my broken brass key stock and the stainless nut. He offered to put it back together for me but we didn't have brass key stock………
    I was able to make a call to guy at my lake who had some, and we put it back together and boat is working prefect. But I have never heard of the key stock failing at the top of the drive shaft before.

    Anyway I was super grateful to my buddy who helped me out of a jam !

    Now I need to replace the key stock, does not seem to be very common, any idea?

    Jeremy
    2005 Mobius LSV

    Gravity IV (750s rear, 400 mid and 650 bow)
    wakeplate, perfect pass,

    Not sure what stereo I have, but I have 3 amps 2 subs 6 x 6.5 mids and tweets and 4 tower speakers ( 2 x 8 inch and 2 x 6.5 and tweets)

    Fuel Injected
    1433 acme prop

  2. #2
    Join Date
    Jan 2008
    Location
    Tallahassee, FL
    Posts
    11,347

    Default

    Might want to keep a key like this with you. I think the key is the same for both ends of the shaft.

    http://www.ebay.com/itm/like/271258097797?lpid=82
    My Mom said I'm not allowed to get wet!
    2008 LSV
    2000 Outback LS (sold)
    Exile Tunes
    PWI
    LLTR!!!!!!!!



  3. #3
    Join Date
    Apr 2010
    Location
    saskatchewan, canada
    Posts
    321

    Default

    Quote Originally Posted by kaneboats View Post
    Might want to keep a key like this with you. I think the key is the same for both ends of the shaft.

    http://www.ebay.com/itm/like/271258097797?lpid=82
    I have just ordered this kit as well as a few "keys"
    I just thought it was weird that this would fail but not the one on the prop.
    2005 Mobius LSV

    Gravity IV (750s rear, 400 mid and 650 bow)
    wakeplate, perfect pass,

    Not sure what stereo I have, but I have 3 amps 2 subs 6 x 6.5 mids and tweets and 4 tower speakers ( 2 x 8 inch and 2 x 6.5 and tweets)

    Fuel Injected
    1433 acme prop

  4. #4
    Join Date
    Jan 2008
    Location
    Tallahassee, FL
    Posts
    11,347

    Default

    It is weird but if your coupler came loose from the shaft who knows what can happen. Make sure you get the little set screw tightened down so the coupler nut doesn't come loose again.
    Last edited by kaneboats; 08-05-2014 at 04:32 PM.
    My Mom said I'm not allowed to get wet!
    2008 LSV
    2000 Outback LS (sold)
    Exile Tunes
    PWI
    LLTR!!!!!!!!



  5. #5
    Join Date
    Jan 2008
    Location
    Tallahassee, FL
    Posts
    11,347

    Default

    Here is a pretty good picture of how the set screw is designed to hold the nut in place so the coupler cannot come off the shaft unless the screw is first removed.




    Also, if you need a special (super short) socket for the nut or the separator tool you can get them from Elbert's:

    http://www.elberts.com/tools.htm



    10133-1-lg_1.jpg
    My Mom said I'm not allowed to get wet!
    2008 LSV
    2000 Outback LS (sold)
    Exile Tunes
    PWI
    LLTR!!!!!!!!



  6. #6
    Join Date
    Apr 2010
    Location
    saskatchewan, canada
    Posts
    321

    Default

    Quote Originally Posted by kaneboats View Post
    It is weird but if your coupler bolt came loose from the shaft who knows what can happen. Make sure you get the little set screw tightened down so the coupler bolt doesn't come loose again.
    You bet man DOne and DOne!
    2005 Mobius LSV

    Gravity IV (750s rear, 400 mid and 650 bow)
    wakeplate, perfect pass,

    Not sure what stereo I have, but I have 3 amps 2 subs 6 x 6.5 mids and tweets and 4 tower speakers ( 2 x 8 inch and 2 x 6.5 and tweets)

    Fuel Injected
    1433 acme prop

  7. #7
    Join Date
    Apr 2010
    Location
    saskatchewan, canada
    Posts
    321

    Default

    That picture is perfect, you can even see a bit of the small spot for the brass key!
    I was just super lucky I didn't have to tow my boat home and was able to have a friend fix it on the lift for me!
    2005 Mobius LSV

    Gravity IV (750s rear, 400 mid and 650 bow)
    wakeplate, perfect pass,

    Not sure what stereo I have, but I have 3 amps 2 subs 6 x 6.5 mids and tweets and 4 tower speakers ( 2 x 8 inch and 2 x 6.5 and tweets)

    Fuel Injected
    1433 acme prop

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