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Discussion Starter · #1 · (Edited)
I was given an Ocean Yachts Islands 17. The mast plate is missing. Searching for one that resembles the specs has proven fruitless. The specs are also not detailed enough to indicate exactly how it attaches to the mast. There is also a chance the tongue on the bottom of the mast is damaged but without having seen how it is supposed to be, I can't know for sure. Obviously, if I can't step the mast, this boat is useless to me. So, I am hoping to find someone who has the same boat who would be willing to take pix of the bottom of the mast with and without the base plate. We can fabricate the plate if we knew what it should look like, how it should attach to the mast and whether or not the mast base is as it should be. Ideally, of course, I'd purchase the plate if I could find one.
I am new to sailing and not very familiar with the online community, so if you'd also be willing to spread the word, it would be greatly appreciated.
Thanks.
 

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Discussion Starter · #3 ·
Here is a link to the boat specs. It is a PDF. The specs are actually from the Sumner version of the boat but the mast step picture seems consistent with the earlier model made by OY. I definitely have the OY model - the company's plate is still on the boat.

I tried to post the pix but the forum is not allowing me to do so, since I have posted less than 10 times.
 

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Discussion Starter · #6 ·
The tongue on the bottom of the mast measures 5/8" X 2 1/4".
The mast step is as follows:
Length 4 3/16"
Width outside 3/4"
Width inside 5/8"
Depth inside 5/8"

outside depth is difficult to measure due to caulking
 

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Discussion Starter · #8 ·
Thanks. Yes, there should be another piece similar to the mast step that attaches to the mast and hinges with the step plate. If we could determine how it was attached to the mast, we'd have far less of a problem :(
 

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Discussion Starter · #11 ·
From what I am gathering from different sources, is that the missing portion of the hinged plate is strictly to facilitate the ease of raising the mast and has little to do with the actual mounting of the mast. A friend suggested the mast will sit nicely in the mast step without the part and I can use the pin holes on the mast step to keep the mast from sliding fore and aft. One of the bolts that secures the step to the deck is slightly raised, so I am wondering if the missing hinge piece was missing for a very long time and a previous owner did that intentionally to stop the mast from sliding to the fore. I am also missing one of the pins, so this theory makes sense in that way.
 

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Discussion Starter · #13 ·
I don't think side shims are needed. The tongue width is the same as the inner dimensions of the mast step.
I have come to the conclusion that in spite of things I've read, Sumner Yachts did indeed change the boat after they bought it from Ocean Yachts and that would explain why the specs are inaccurate
 

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Discussion Starter · #14 · (Edited)
ok .... so I think the pieces have all come together.

My boat was made by Ocean Yachts. They were bought out by Sumner Yachts. I was under the impression that they continued making the boat, "as is". The specs I got online are from Sumner and not OY. Apparently, the OY model did not have a hinged mast step setup, which the Sumner specs indicated it had. So, Sumner did indeed change the boat. The model I have is merely a mast step and the pins were used to center the mast tongue and keep it from sliding fore and aft.
I had wondered how a hinged setup would work, anyway, since the centerboard console would be in the way of raising the mast in this way. Someone else also pointed this out.

Thanks for all your help!
 
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