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  1. #1
    Join Date
    Nov 2019
    Location
    Canada
    Posts
    4

    Default Looking for suggestions re Goose Neck Repair

    A Goose Neck is a critical connection point joining a Sailboat's boom to it's mast ... mine comes from a 1993 23.5 hunter and is made of either cast Aluminum or some other kind of Cast Alloy (unknown) ... at issue: bushings that were intended to keep the Pivot Points from wearing out have disintegrated (upper and lower Pin extrusions) ... so ... the bottom Pin extrusion which should be .5" circle (Diameter) is now an oval with a minimum diam of 3.45", and a max diam of 4.85" ... basically the top half of the Pin's original Circle has been worn away.

    This part is no longer available from the Vessel's Vendor. To replace this goose neck with some other part would require replacing both the upper and lower mast pivot points, the goose neck, and worst of all, finding a way to adapt the boom to the new goose neck hardware ... all very custom parts.

    So, for now, looking to find a way to continue using the existing Goose Neck, by first replace the bushings, and then find a way to repair the worn extruded Pin on the goose neck ... here are some options I am considering

    1) complete re manufacture of cast Goose Neck (expecting this could be huge $)

    2) attempt to weld some material to the pin (as the cast material is unknown, very concerned that heat from any welding could permanently damage the part)

    3) cut the Pin Flush then drill a 1/2" hole in to the part to accept a 1" x 1/2" Diameter Aluminum or Stainless Rod (as the part is only .7" wide very concerned that with .1" wall thickness after drilling, any stress/shock to the pin may result in fracturing the part)

    4) following a similar line on #3, the rod could be threaded 3/8" instead of 1/2" providing more wall thickness (requiring a special rod 1" long with .5" at .5" diam and .5" at 3/8" threaded ... again $ involved for custom work)

    5) today I was investigating the possibility of leaving the part as is, and building up the missing material with some type of epoxy and or metal filler ( there are so many products out on the market it is hard to know if any of them would do the job ... needing to fill about .5" length by .165" of material ... the bond must be able to sustain -30 to +40, be Water Proof, shock Proof (when a boom whips across from once side of the boat to the other there can be a huge amount of force exerted on the Goose Neck) Thinking I could cut up sewing needles and embed them in to the existing pin to strengthen the bonding surface

    6) Other Ideas?

    Was hoping the combined expertise of professional metal workers would be able to advise the best way forward so I don't ruin this critical part

    Thanks in advance for your time

  2. #2
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    Hi bxdobs

    Welcome to our MetalWork Forum,

    A few of our members have told us they own holes in the water in which they pour money into. In short- boats.

    Hopefully they are the people from whom you might receive assistance and advice on your boom gooseneck repair

    I take it that the sailboat is privately owned and budget is limited.

    The key is to supply as much information as you can.

    There is a sticky above the general Metal Working page that can be read to give you an idea.

    Sticky: New? Asking a Question - Read This

    https://metalworkforums.com/f65/t198793-question-read

    Feel free to explore our sub forums for all of what we have to offer. Go to the FORUM box in the LH corner,the one with the little white down arrow and click.
    Click again on Forum Home and it will take to the page where all our sub forums and other helpful links are.

    Again welcome to a great forum

    Grahame

  3. #3
    Join Date
    Oct 2011
    Location
    Norwood-ish, Adelaide
    Age
    59
    Posts
    6,540

    Default

    A photo or two would be appreciated - not being a sailing type, I can't picture the problem.

    Michael

  4. #4
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    I have no idea at all if it will help,however its the same as your problem.

    Captain Curran's sailing blog: Replacing a broken gooseneck on my sailboat mast
    It is dated 2015 and that is a long time on the net.

    Grahame

  5. #5
    Join Date
    May 2011
    Location
    Murray Bridge S Aust.
    Age
    71
    Posts
    5,942

    Default

    Grahame, thanks for enlightening us LandLubbers, now we know what a Gooseneck is in Nautical terms
    Kryn
    To grow old is mandatory, growing up is optional.

  6. #6
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    It can be difficult to get a grasp on the approach to repair when the some of the other factors are not quite clear.

    You do not mention the size or make of the boat or its age. I assume 20 or thirty years due to the corrosion factor described.

    These bits of info make it helpful those who might have some input to the problem.

    The other factor is that cheap, fast and strong don't usually work in conjunction.

    I would be asking my self is a material that would corrode in time a good choice?

    Some of the sailing boat forums I have googled on the net, in the last few minutes, have some very good info.

    While original parts may not be available there seems to be quite a few after market items available on Google.

    Grahame

  7. #7
    Join Date
    Jan 2004
    Location
    Mackay North Qld
    Posts
    6,446

    Default

    Quote Originally Posted by KBs PensNmore View Post
    Grahame, thanks for enlightening us LandLubbers, now we know what a Gooseneck is in Nautical terms
    Kryn
    60 seconds on Google

  8. #8
    Join Date
    Oct 2010
    Location
    melbourne, laverton
    Posts
    1,910

    Default stainless

    hi mate . ive done a bit of this sort of stuff.
    last year broke a cast alloy boom vang goose neak.
    this was on a 85' palmer and johnson ketch.
    what size yacht is it.
    we where way remote at the time . port Mcneil. British coloumba .
    there was a machine shop they built us a new one
    for around $800 . out of stainless.. with bronze bushes.
    aaron

  9. #9
    Join Date
    Nov 2015
    Location
    Brisbane Australia
    Posts
    85

    Default

    I might know a fair bit about sailing boats.

    If it is a dinghy or catamaran then maybe this Ronstan part would suit.

    Or a Seldon/Proctor gooseneck.

    Both of these above are available in the US, I know you are in Canada but I have done a lot of sailing in the US so I am fairly sure you should be able to get them in Canada.

    If not I am sure you could mill up a new one out of a block of aluminium.

    If it is a bigger boat, please say and I can give you my best two cents worth.


    Screen Shot 2019-11-03 at 20.26.50.pngScreen Shot 2019-11-03 at 20.21.16.png

  10. #10
    Join Date
    Dec 2011
    Location
    Sydney
    Posts
    505

    Default

    Have you checked RigRite (rigrite.com)?
    They are in Rhode Island, USA - the website is a bit old school, but they have a huge range of spar and rigging stuff, including replacements for some obsolete parts.
    Best of luck,
    Bill

  11. #11
    Join Date
    Nov 2019
    Location
    Canada
    Posts
    4

    Default Photo of gooseneck for 1993 23.5 Hunter


  12. #12
    Join Date
    Nov 2019
    Location
    Canada
    Posts
    4

    Default Update

    Quote Originally Posted by WCD View Post
    Have you checked RigRite (rigrite.com)?
    They are in Rhode Island, USA - the website is a bit old school, but they have a huge range of spar and rigging stuff, including replacements for some obsolete parts.
    Best of luck,
    Bill
    Hadn't seen this site before ... this appears to be a Z-SPAR product ... the Z-1188x sure looks like the part but the listed measurements are not an exact match to my part (depends on these being manufacturer specs or someones measurements)

    Z-1188X with 2 Z-1766L Bushings
    73 mm tall
    18.5 mm wide
    10 mm boom pivot hole
    12 mm top & bottom pins (.472")

    My Parts ... bushings are beyond measurement
    70.94 mm Tall
    17.96 mm Wide
    10 mm boom pivot hole
    12.65 mm top & bottom pins (.498")

    I have now sent emails to hunter, z-spar, and rigrite to see if I can obtain a replacement part

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