Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 23-11-2015, 17:58   #1
Registered User

Join Date: Nov 2015
Posts: 25
At What Age Should Keel Bolts Be Replaced?

I looking to buy a 36' to 42' sloop. One 1966 sloop (42' Spencer... there were 26 made) has bolt on keel. Looks very good and bone dry.

The '36 sloop is encased. fyi

Thoughts?

Rodger
__________________

__________________
Ramjet60s is offline   Reply With Quote
Old 24-11-2015, 06:04   #2
Registered User
 
denverd0n's Avatar

Join Date: Jun 2008
Location: Tampa, FL
Posts: 3,953
Images: 6
Re: At What Age Should Keel Bolts Be Replaced?

Keel bolts are not normally replaced on a regular basis as a precautionary measure like, for instance, standing rigging might be. When the bolt shows signs of significant deterioration, that's when you replace it.
__________________

__________________
denverd0n is offline   Reply With Quote
Old 24-11-2015, 07:03   #3
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 187
Re: At What Age Should Keel Bolts Be Replaced?

If its an iron keel, the bolts are just tapped into the iron and are relatively easy to remove. You can pull them one at a time to check their condition, even in the water. If the exposed tops in the bilge are not rusty, there's no water weeping in or out, and no large crack visible between the keel and hull, there's no real need to do anything but check the tightness with a torque wrench. If the keel is lead, they are probably J bolts cast into the lead and not removable. You would have to drop the keel to check them. Once again, of there's no sign of leakage and the tops look good, no need to do anything but torque the nuts. If they break off when you do that, then you know they're bad. They can be sistered, but that's a pretty big job.
__________________
capt jgw is offline   Reply With Quote
Old 24-11-2015, 07:30   #4
Moderator Emeritus
 
GordMay's Avatar

Join Date: Mar 2003
Location: Thunder Bay, Ontario - 48-29N x 89-20W
Boat: (Cruiser Living On Dirt)
Posts: 31,586
Images: 240
Re: At What Age Should Keel Bolts Be Replaced?

Depending on the material of the bolts (galvanized steel, bronze, stainless steel or monel) and how they have been cared for, the life span of most keel attachments ranges from 15 years (Galv Steel), to up to 50 Years (Stainless Steel / Monel) to the life of the boat (Bronze).
__________________
Gord May
"If you didn't have the time or money to do it right in the first place, when will you get the time/$ to fix it?"



GordMay is offline   Reply With Quote
Old 24-11-2015, 08:29   #5
Moderator
 
a64pilot's Avatar

Cruisers Forum Supporter

Join Date: Oct 2013
Location: Albany Ga.
Boat: Island Packet 38
Posts: 17,059
Re: At What Age Should Keel Bolts Be Replaced?

Only part you can inspect visually is the part that doesn't matter. I'd have to inspect them, which of course may well mean removing the keel. So I'd figure on cost of dropping keel into purchase price, unless they are bronze or monel. never seen either, but then I've only seen a few.
__________________
a64pilot is online now   Reply With Quote
Old 24-11-2015, 09:29   #6
Registered User

Join Date: Apr 2006
Location: Caracas Venezuela
Boat: Beneteau First 456 Carisma 1984
Posts: 35
Send a message via Skype™ to sotavento
Re: At What Age Should Keel Bolts Be Replaced?

I have changed bolts on my First456 becouse thy where worn (rust) on heads. Inside they where perfect. So only change if heads are gone!.
__________________
sotavento is offline   Reply With Quote
Old 24-11-2015, 09:48   #7
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 187
Re: At What Age Should Keel Bolts Be Replaced?

As you look at the bolts from the bilge, if you just see bolt heads with no threaded studs sticking out, they would have to be tapped onto the iron keel and easily pulled to inspect or replace. If they are nuts on threaded studs, they might be J bolts cast into a lead keel and not removable. That would require dropping the keel if you wanted to inspect them. My Columbia 36 has hanger bolts screwed into an extra hard lead keel so they are removable, but most lead keels have J bolts.
Encapsulated keels have issues too. Any damage to the fiberglass keel from grounding or water seeping in from the bilge will cause the usually iron ballast to rust and expand, and that's really, really bad.
__________________
capt jgw is offline   Reply With Quote
Old 24-11-2015, 09:55   #8
Registered User

Join Date: Oct 2011
Location: Sequim, WA
Boat: Pacific Seacraft Dana 24
Posts: 165
Re: At What Age Should Keel Bolts Be Replaced?

If it ain't broke don't fix it situation. If all appears sound, no rust, no cracking or other evidence then messing with it can introduce a problem where there was none.
Just IMHO based on oldness.
__________________
Xthewater is offline   Reply With Quote
Old 24-11-2015, 09:59   #9
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 187
Re: At What Age Should Keel Bolts Be Replaced?

Quote:
Originally Posted by Xthewater View Post
If it ain't broke don't fix it situation. If all appears sound, no rust, no cracking or other evidence then messing with it can introduce a problem where there was none.
Just IMHO based on oldness.
I agree. Mine were leaking so I had to change them. I found the forward one where the leak was rusted to dust. The rest were rusty on top but very good below that. I'm replacing them all.
__________________
capt jgw is offline   Reply With Quote
Old 24-11-2015, 10:20   #10
Registered User

Join Date: Apr 2006
Location: Caracas Venezuela
Boat: Beneteau First 456 Carisma 1984
Posts: 35
Send a message via Skype™ to sotavento
Re: At What Age Should Keel Bolts Be Replaced?

capt jgw, I agree with all you said, my poit is, if heads are OK threads will be good (to my experience) and there is no need to chage them
__________________
sotavento is offline   Reply With Quote
Old 24-11-2015, 10:26   #11
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 187
Re: At What Age Should Keel Bolts Be Replaced?

Quote:
Originally Posted by sotavento View Post
capt jgw, I agree with all you said, my poit is, if heads are OK threads will be good (to my experience) and there is no need to chage them
It's the spot between the fiberglass and the lead that's vulnerable. You can't see that from the bilge. The bolt on mine that rusted away didn't look any worse than the rest, but pulled right out when I put the wrench to it. It was wasted completely away at the interface, and that was not evident until I pulled it out.
__________________
capt jgw is offline   Reply With Quote
Old 24-11-2015, 13:40   #12
Registered User

Join Date: Sep 2015
Location: Tasmania Australia and Haines Alaska
Posts: 13
Images: 4
Send a message via AIM to cradlemountain
Re: At What Age Should Keel Bolts Be Replaced?

Please, what dose 'sistered' mean?
__________________
cradlemountain is offline   Reply With Quote
Old 24-11-2015, 13:55   #13
Registered User

Join Date: May 2015
Location: Muskegon, Mi
Boat: Columbia 36
Posts: 187
Re: At What Age Should Keel Bolts Be Replaced?

Quote:
Originally Posted by cradlemountain View Post
Please, what dose 'sistered' mean?
Another bolt set in beside the original. Originally meant reinforcing a broken frame by installing another one alongside.
__________________
capt jgw is offline   Reply With Quote
Old 24-11-2015, 15:55   #14
Registered User
 
rosatte's Avatar

Join Date: Jun 2015
Location: belleville ont.
Boat: catalina 34
Posts: 147
Re: At What Age Should Keel Bolts Be Replaced?

Our catalina 34 is a 1991 after hearing about bad keel bolts we had our keel removed and keel bolts inspected they were as good as new so after reebbing keel cost was 2700 dollars thats a lot for nothing that needed to be done boat has always been in freshwater so maybe that may have come into play its plain and simple if boat has been properly maintain d u shouldn.t have a issue.
__________________
rosatte is offline   Reply With Quote
Old 24-11-2015, 15:58   #15
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,369
Re: At What Age Should Keel Bolts Be Replaced?

For a cruising boat, keel bolts should be replaced at the design stage, before building.
__________________

__________________
"I spent most of my money on Booze, Broads and Boats. The rest I wasted" - Elmore Leonard











Cheechako is online now   Reply With Quote
Reply

Tags
keel, keel bolts

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Keel Center board cable replaced with dyneema? Bristol30 Construction, Maintenance & Refit 1 14-05-2015 20:43
Age old question.. or is an old question of age? xeon_tsd Dollars & Cents 27 24-02-2013 06:47
For Sale or Trade: U bolts, U bolts, and more U bolts off-the-grid Classifieds Archive 1 20-07-2012 16:33
How Old Is Too Old Before SS Rigging Should Be Replaced? CastOff Monohull Sailboats 32 25-03-2010 10:33
When should thru hull fittings be replaced? irwinsailor Construction, Maintenance & Refit 14 18-03-2007 02:16



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 13:57.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.