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 How to replace keel bolt nuts? Need to know		  New Topic  Topic Locked
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EUSJIM
1st Mate

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32 Posts
Initially Posted - 02/01/2010 :  20:41:37  Show Profile
Just bought this Capri 25. The keel bolts are fine. A couple of the nuts are rusty...not stainless.
Is there a technique to remove one by one? What torque for the new nuts?
Jim Oursler
Capri 25
Hull 181
Ray Hubbard
Rockwall TX
Edited by - EUSJIM on 05/14/2011 21:23:56

Scott121
Deckhand

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16 Posts
Response Posted - 02/02/2010 :  21:01:51  Show Profile
Congrats on buying a Capri 25.

This is from Kent Nelson at Catalina.
"The keel torque for the 1/2" bolts should be 39 ft-lbs with the boat on the hard and the keel supported."

Scott
Capri 25 #403
San Diego
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Sloop Smitten
Master Marine Consultant

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USA
1181 Posts
Response Posted - 02/03/2010 :  09:56:03  Show Profile
If you are just looking to replace the nuts and washers I would give one a good soaking with PB Blaster and let it set overnight to verify whether the nut will release or not. I have had good luck with this product removing corroded hardware. By the way, stainless can rust. Depends on the grade of stainless used.
Whatever process you follow your biggest fear would be twisting off a stud so approach it carefully. If the torque setting is 39 lbs., and the stud is corroded inside the nut, it will take less then 39 lbs. to break the stud. You might also use a nut splitter which may be more safe then twisting off the nut but again it will depend on the condition of the studs threads inside the nut if it is reusable.




Nut Splitter
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Ed Cassidy
Captain

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USA
365 Posts
Response Posted - 02/03/2010 :  10:18:04  Show Profile
If you have viable thread above the nuts, use a nut splitter or if that worries you, put a cap over the rusted nut that is held in place by an additional nut. Something like a stack of large washers that fit around the rusted nut with a smaller washer that is held in place by the additional nut.
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abraxis
1st Mate

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USA
49 Posts
Response Posted - 02/10/2010 :  10:20:00  Show Profile
I agree with all the info. that you have received.
My Capri came to me with SS nuts and flat washers, I added SS
lock washers one at a time so as not to free up the keel entirely and re-torqued to 39 lbs. I found outthat after a coulpe of years or so without the lock washers the nutswould loosen just a tad, 2 to 4 lbs.

An aside--- always take a small magnet with you whenever you go to
purchase ANYTHING out of stainless. Low grade ss will be attracted
to the magnet. PASS on anything that fails this easy test.

ABRAXIS
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Voyager
Master Marine Consultant

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USA
5377 Posts
Response Posted - 02/15/2010 :  21:21:44  Show Profile
Michael
Checking with a magnet is excellent advice!
Edited by - Voyager on 02/15/2010 21:22:24
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EUSJIM
1st Mate

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32 Posts
Response Posted - 05/14/2011 :  21:21:54  Show Profile
I only had three bad, soft steel nuts. Was worried that they would be hard to remove, so used a good solvent. Replaced them with stainless which I checked with a magnet. The torque bar was long enough to provide adequate leverage for removal of old nuts. Torqued new to 39 ft lbs and checked all others for proper torque. The bolts were all like new, bright stainless.
Edited by - EUSJIM on 05/14/2011 21:23:23
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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.