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 Once again The Pivot Pin		  New Topic  Topic Locked
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frich
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USA
418 Posts
Initially Posted - 01/07/2004 :  07:48:23  Show Profile  Visit frich's Homepage
I know this subject has been spoken about repeatly, but I just want to make sure I can follow this course of action.

I own irish ayes 3 years now and last year replaced the swing cable and turning ball. I have never expierienced the clunking of the keel moving sideways within the trunk at any time.

Should I assume that my pivot pin is in good condition, and replacement is not needed? Is replacing the (4) bolts exposed on the hull a good practice? I just have so many other things to do and getting a marina to perform the keel pin will jeopardize my splash down date!! And I want to SAIL A LOT THIS YEAR!!! sorry for shouting


Frank R
84 C25 SK
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ClamBeach
Master Marine Consultant

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3072 Posts
Response Posted - 01/07/2004 :  10:08:45  Show Profile
I'd think you're going to hear some clunking or thunking when she gets significantly worn. You could get a better feel for this by seeing what sort of side play you have by horsing around on the end of the keel while on the trailer. (or boat otherwise safely supported of course)
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Leon Sisson
Master Marine Consultant

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USA
1893 Posts
Response Posted - 01/07/2004 :  11:25:17  Show Profile  Visit Leon Sisson's Homepage
Frank R,

Is your boat on a trailer or stands now? If so, then checking or replacing the keel bolts and/or pivot pin is fairly straight forward task.

-- Leon Sisson
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frich
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USA
418 Posts
Response Posted - 01/07/2004 :  11:35:21  Show Profile  Visit frich's Homepage
Leon
The Boat is on a trailer with the keel resting on a cross member that can't be removed.


Frank R
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Leon Sisson
Master Marine Consultant

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1893 Posts
Response Posted - 01/07/2004 :  11:59:41  Show Profile  Visit Leon Sisson's Homepage
Frank R,

If the aft end of the keel is on a trailer crossmember, that's normal. If the forward end of the keel is accessable, and can be lowered and raised a couple of inches, that's all you need in order to inspect or replace the pivot parts. There are a variety of methods for manuevering the head of the keel once the pivot bolts are removed. One of the least expensive and most reliable is the 3/8"-NC all-thread method combined with secure blocking. The keel casting weighs about 1,500 pounds -- plan accordingly.

Once the pivot hardware is out of the way, it's easy to check the diameter and clearances of the pivot pin and hole in the keel. If the pin is close to 1" in diameter, the hole isn't much larger and is still close to cylindrical, and you're not experiencing keel clunk now, then there's probably no need to repair the hole in the keel at this time.

The support bolts and pivot pin are very inexpensive. The bronze pivot hangers which bolt up into the hull are also reasonably priced. I'd suggest replacing anything that looks the least bit worn. If the hole in the keel is too large, then that's a much less trivial task to correct, but several owners have done it successfully.

Let us know if you need more specific info to proceed. Many C-25 owners have done this work themselves.

-- Leon Sisson
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frich
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USA
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Response Posted - 01/07/2004 :  12:28:13  Show Profile  Visit frich's Homepage
Thanks Leon I will take a close look this weekend

Frank R
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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.