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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 center board trunk movement		  New Topic  Topic Locked
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craig shaffer
Deckhand

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USA
8 Posts
Initially Posted - 05/16/2010 :  07:23:18  Show Profile
if you have the cover off the center board can you move it
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Ed Cassidy
Captain

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USA
365 Posts
Response Posted - 05/16/2010 :  08:15:50  Show Profile
I don't think you provided enough information for any of us to say anything.
Can you add some detail?
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craig shaffer
Deckhand

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USA
8 Posts
Response Posted - 05/18/2010 :  11:37:03  Show Profile
when sailing the box over the center board trunk moves,when the boat is on the trailer with the center board up and some one pushes on the center board i can see the trunk move a little is this right
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skrenz
Captain

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USA
351 Posts
Response Posted - 05/18/2010 :  13:26:25  Show Profile
Craig,
A Catalina 25 doesn't have a center board trunk per se. It has a swing keel of 1500 lbs that partially retracts into a space that is under the cabin sole (floor). So there isn't a box over the center board trunk. I suspect you might be confusing this forum with a different boat.

That being said, I have sailed many center board boats. The centerboard itself usually pivots on a bar through the centerboard trunk. The centerboard trunk is stoutly built and connected to the hull so that the joint does not leak. In smaller boats, it is usually further supported by a thwart (seat) placed accross the boat so as to contact the two sides and the top of the centerboard trunk. The short answer is No, the trunk should not be able to move against the hull.

I think this is what you are talking about. If I don't have it right, could you post a drawing?
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Ben
Master Marine Consultant

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USA
1234 Posts
Response Posted - 05/18/2010 :  13:42:28  Show Profile
My C25 does have a cover for the swing keel trunk. In my opinion, which may not be worth much, that trunk should not move even a little bit. Ever.

The part the cover hides is where the swing keel pivots when the keel is lowered. At the very least I'd take that cover off and see if there is any structural issues contributing to that area flexing. Unless I'm confused as to what you're talking about.
Edited by - Ben on 05/18/2010 13:44:46
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 05/18/2010 :  13:57:19  Show Profile
What interior do you have? If you have a traditional interior, are you referring to the wood cover over the keel pivot at the forward end? If so, take it off and check the actual fiberglass housing that it hides. The top of the trunk also extends aft in the bilge. Access is determined by the interior layout, and more general information about your boat makes makes it easier to help with specific problems. In general, the trunk shouldn't move, but with a little more general information and a clear description of the appearance of the actual trunk we will try to help. Examine the trunk from under the boat for cracks or evidence of damage - you may have to clean the area to see.
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 05/18/2010 :  14:05:31  Show Profile
TR=tall rig
SR=standard rig
Trad=traditional interior with port and starboard settees and removable table
Dinette - I think there are 2 variations of dinettes
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craig shaffer
Deckhand

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USA
8 Posts
Response Posted - 05/18/2010 :  19:48:09  Show Profile
I have a 1980 standard rig traditional interior with port and starboard settees and removable table,their is no sign of cracks under the boat,I just redid the bottom.
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Dave5041
Former Mainsheet Editor

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USA
3758 Posts
Response Posted - 05/18/2010 :  20:28:57  Show Profile
Does the fiberglass trunk (remove the wood cover) move when you push on the keel? Can you move the trunk by pushing on it? Is there any sign of water entry on the trunk or cracks visible on its surface? Does the keel "clunk" when you change tacks? A badly worn pivot hole in the keel or severely worn or bent pivot pin could let the keel move and possibly put very high pressure on the trunk, but you would definitely hear it clunk if it had that much play.. All of the load of the keel is normally carried by the pivot assembly.
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JohnP
Master Marine Consultant

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1520 Posts
Response Posted - 05/19/2010 :  15:20:32  Show Profile
My friend's 1980 C-25 swing keel trunk used to move on each tack, and he had it re-glassed by an experienced boat worker who added many layers over a few months to strengthen the whole structure. Now it does not move at all. He replaced the pivot fitting also.
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pastmember
Master Marine Consultant

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2402 Posts
Response Posted - 05/20/2010 :  11:32:51  Show Profile
The box is seen here, sorry it is so dark.
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dmpilc
Master Marine Consultant

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USA
4593 Posts
Response Posted - 05/24/2010 :  07:48:50  Show Profile
Here are a few good pics of the swing keel trunk with the cover removed, after we repaired a leak there. The guy added several layers of glass cloth and painted it. No leaks. There should be absolutely no movement in the trunk.
Edited by - dmpilc on 05/24/2010 07:52:58
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Notice: The advice given on this site is based upon individual or quoted experience, yours may differ.
The Officers, Staff and members of this site only provide information based upon the concept that anyone utilizing this information does so at their own risk and holds harmless all contributors to this site.