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 Catalina/Capri 25/250 Sailor's Forums
 Catalina 25 Specific Forum
 keel bolts		  New Topic  Topic Locked
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Danielle
Deckhand

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17 Posts
Initially Posted - 01/22/2003 :  16:31:53  Show Profile
I have a 1980 C25 standard rig, and I am a little concerned about the keel bolts. They have some significant rust build up around the bases of them. I am going to have it hauled for bottom paint in the next month or two. Is it possible that additional bolts be put in for reinforcement? Do the old ones need to be removed? Do you have any idea on costs? Do keels ever just fall off? (GAWD forbid!)
You guys have been great with the ideas and suggestions in the past! Thanks in advance for any info.
Danielle
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Douglas
Master Marine Consultant

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1595 Posts
Response Posted - 01/22/2003 :  19:02:27  Show Profile  Visit Douglas's Homepage
Keel bolt hardware: Often times Catalina used whatever was laying about when it came to the washers. Much of the rust can often be attributed to a none stainless washer or even nut being used. Take a magnet with you and find out what you have. If it is magnetic its not good stainless. You might be lucky and be able to replace some of this hardware one at a time.

If the keel bolt has eroded away at the nut area yes you can install extra or new keel bolts. This involves drilling with a very long drill down through the bilge and into the keel. Then using a tap to thread the new hole and insert a new bolt and hardware.

Be sure to check the area just below the bilge. Often times a section of plywood has been glased into the bottom of the bildge under the bolts and is a integral part of the hull. This wood can often become waterloged and rotten. Repairing this is not to bad. Drilling several holes to suck out and dry out the wood and then injecting epoxy works good. Rot Doctor is a good product for this. Keep us posted as to what you find out and exactly how much of a project you have. Pictures would help.

Doug&Ruth
Triska (Alberg 29)
Tacoma Wa.
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mroettersr
Navigator

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USA
148 Posts
Response Posted - 01/24/2003 :  00:32:01  Show Profile
Danielle,
When I bought my C22, I had the misfortune of having to remove a soft (non-stainless) bolt that someone had used as one of the four bolts holding the keel hanger. I drilled a small hole up through the center of what was left of the bolt (the head had rusted off completely) and used a product called PB Blaster to inject into the hole to get penetrant to seep down through the threads. I have used PB on other projects like removing a 70 year old waterpump from and antique car, and it is a fantastic product. If you run into a problem, let me know and I will describe the process of removing the bolt from there. Suffice it to say, the removal required hours of time as the bolt was badly corroded.

Mike Roetter
'83 C25 #3568 SK/SR
Marblehead on Lake Erie
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Dave Bristle
Master Marine Consultant

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Djibouti
10005 Posts
Response Posted - 01/24/2003 :  17:01:30  Show Profile
Prior to about 1984, I think, the fin keel was made of cast iron and hung with mild steel bolts and nuts that will get rusty. Around 1984, Catalina started making a fiberglass-encased lead keel that is hung with stainless bolts. That should explain what you're seeing... A marine surveyor or other professional should probably have a look and tell you whether anything should be done. It may be that all you need to do is apply something to retard the oxidation--possibly including a sacrificial annode on the keel.

Dave Bristle - 1985 C-25 #5032 SR-FK-Dinette-Honda "Passage" in SW CT
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mroettersr
Navigator

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USA
148 Posts
Response Posted - 01/24/2003 :  23:47:16  Show Profile
Danielle,
I'm red faced. For some reason I didn't think that you were concerned about the bolts on a fixed keel but rather on the swing. My remarks must sound stupid. Sorry.

Mike Roetter
'83 C25 #3568 SK/SR
Marblehead on Lake Erie
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Douglas
Master Marine Consultant

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1595 Posts
Response Posted - 01/25/2003 :  13:43:14  Show Profile  Visit Douglas's Homepage
Either way swing wing or fin its best to find out what type of bolts you have and if they are not stainless they should be changed out same applies to the washers and hardware.

Doug&Ruth
Triska (Alberg 29)
Tacoma Wa.
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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.