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hanschristian.org • View topic - Seized seacocks on a HC34

Seized seacocks on a HC34

Hose Clamps, Seacocks & Thru-hulls, Heads, Holding Tanks and Sanitation

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Seized seacocks on a HC34

Postby reno_geo » Sat Apr 20, 2013 10:00 am

When I purchased HC34 Bettina she had been on the hard for over ten years. All the seacocks are very tight if not seized. They seem to be the original hardware (1977). What is the best way to maintain these? Can they be disassembled and lubricated? Are any special tools needed to do that? Any instructions available?

Ed
HC34T Bettina
Hull No. 13
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Postby markfnovak » Sat Apr 20, 2013 5:23 pm

You probably have tapered plug valves. I recommend you get a copy of Nigel Calder's "Boatowners's Mechanical and Electrical Manual", third edition, and expore what he has to say about servicing them.

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Postby clonjers » Sat Apr 20, 2013 5:28 pm

On our HC34 we disassembled them just undo the nuts. Ours were not frozen, so maybe you need to apply some penetrating oil, or the like. Then pop them out, be careful don't break them.

Usually did this at each haul out.

Then apply grinding/lapping compound, reinsert the plug and rotate back and forth forever, they should cleanup nicely. apply a proper waterproof grease made for sea cocks.

Should work.
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Postby jonneely » Sat Jul 06, 2013 12:57 am

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Postby Bill » Tue Jul 09, 2013 2:23 pm

Hey Jon,

I am sure it is possible but you might consider what you would do if you broke the screw end off the tapered plug while disassembling. If you can get the nut off easily, you could probably do a single seacock at a time by using a tapered wood plug on the outside of the hull. I have not tried this before but would be fairly confident it would work. I don't think I would try it by myself though.

Working the tapered portion of the seacock is fairly quick and straight forward as suggested in previous posts. You could plan on less than 15 minutes per seacock once you complete the first one.

Good luck, hopefully you are in a warm climate. You friend will get cold in the water otherwise waiting for you to finish each plug.
Bill and Lisa
Beyond Reason
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Hull #23
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Postby bruadair » Fri Jul 12, 2013 2:38 am

D&D
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Postby edelweiss » Fri Jul 12, 2013 11:36 pm

1980 HC 38T/MKII hybrid
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Postby jonneely » Sat Jul 13, 2013 5:07 am

1982 HC33 S/V Prism
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Postby bruadair » Sun Jul 14, 2013 3:04 am

D&D
s/v Bruadair
1984 Hans Christian 33T #58
Exploring the Western Caribbean,
Currently resting in Bocas del Toro, Panama
www.sv-bruadair.blogspot.com
Bruadair is now for sale, more at
www.hanschristianforsale.blogspot.com
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Postby jonneely » Sun Jul 14, 2013 6:39 am

1982 HC33 S/V Prism
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Postby bruadair » Sun Jul 14, 2013 7:41 pm

D&D
s/v Bruadair
1984 Hans Christian 33T #58
Exploring the Western Caribbean,
Currently resting in Bocas del Toro, Panama
www.sv-bruadair.blogspot.com
Bruadair is now for sale, more at
www.hanschristianforsale.blogspot.com
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