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Prindle 18 mast step hinge  Bottom

  • Hi guys. Fairly new to the forum, but the wealth of knowledge on here is astounding. Had a quick question and was hoping somebody has fixed this kind of problem before. When I step my mast, I look down at the hinge and I can see the hinge pulling away from the mast. I put new rivets on it the other day and that didn't help. Am I going to have to pull the mast bottom off and add a backing plate of some kind?

    Thanks in advance,
    Adam
  • That is exactly what I did a number of years back. Have not had a problem since. I think my problem when I was using a gin pole and the mast was about 30% raised and something got hung up and it took about 5 minutes to free it up. At least that is when I noticed a problem with the hinge being pulled from the mast.

    Greg
  • This is an endemic problem with 35-40 year old P-18's Mast hinge. A quick & easy fix is to take it off & put it on other side of mast. Good for another 20 years. Pete
  • Appreciate the responses guys. I think I'm gonna go with the backing plate idea. Keep things clean......kinda sorta maybe. Hey Greg, did you use aluminium plate on yours? What gauge?
  • swcapitalo Appreciate the responses guys. I think I'm gonna go with the backing plate idea. Keep things clean......kinda sorta maybe. Hey Greg, did you use aluminium plate on yours? What gauge?

    Be certain to use Monel rivets. Aluminum or even Stainless will give you a loose hinge again.
    You can find them at Murray's.
    Here's an explanation of rivet sizing and nomenclature:

    https://www.thebeachcats.…ictures?g2_itemId=126388

    --
    Sheet In!
    Bob
    Prindle 18-2 #244 "Wakizashi"
    AZ Multihull Fleet 42
    (Way) Past Commodore, Prindle Fleet 14
    Arizona, USA
    --
  • EDIT: Disregard, I read the title as Hobie 18 mast hinge, not Prindle. I'm not familiar with the Prindle setup.

    Deleted.

    sm



    Edited by Dogboy on May 20, 2017 - 10:14 PM.

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