Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 02-04-2016, 12:10   #1
Registered User
 
Skipper Bob's Avatar

Join Date: Apr 2016
Location: Macau
Boat: van de Stadt Pionier, 30'
Posts: 25
What to do about corroded keel bolts

Hi,

I would like to ask for some advice. I've been scraping the peeling paint in my bilge to prepare for repainting it and noticed the keep bolts are quite corroded, as shown in the attached pictures.

The boat is a 1962 van de Stadt Pionier 9. A picture of the hull showing her keel is also attached.

I am now considering what to do about these keel bolts. Should this level of corrosion be a cause for concern? Am I about to lose my keel next time I encounter heavy seas? Or is this problem merely cosmetic? Should I just clean and paint over the bolts? Should I perhaps (as one friend here suggested) reinforce the bolts by welding on steel rings around each bolt? Or do it "properly", which probably means lifting the boat out of the water, removing the keel bolts and nuts and replacing them, which probably means removing and later re-attaching the whole keel?

As you can appreciate, I would like to avoid the latter, most drastic scenario.

Thanks for any advice and opinions.
Attached Thumbnails
Click image for larger version

Name:	IMG_20160401_102137.jpg
Views:	166
Size:	127.3 KB
ID:	121907   Click image for larger version

Name:	IMG_20160401_102145.jpg
Views:	151
Size:	127.0 KB
ID:	121908  

Click image for larger version

Name:	IMG_20150702_101940.jpg
Views:	146
Size:	122.6 KB
ID:	121909  
__________________

__________________
Skipper Bob is offline   Reply With Quote
Old 02-04-2016, 12:17   #2
Senior Cruiser
 
Cheechako's Avatar

Cruisers Forum Supporter

Join Date: Aug 2006
Location: Skagit City, WA
Posts: 19,363
Re: What to do about corroded keel bolts

They look pretty questionable. Is the keel lead? They might come out if it is.... I guess it depends on how the boat was constructed though.
__________________

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











Cheechako is offline   Reply With Quote
Old 02-04-2016, 12:38   #3
Freelance Delivery Skipper..
 
boatman61's Avatar

Community Sponsor
Cruisers Forum Supporter

Join Date: Jan 2010
Location: UK/Portugal
Posts: 20,209
Images: 2
Send a message via Skype™ to boatman61
pirate Re: What to do about corroded keel bolts

If its an iron keel.. I have known folk to leave the old bolts in and drill/thread new holes in situ then screw in the new bolts and trim to height.. put the nut on the thread before hand else its a buga otherwise..
__________________


Born To Be Wild
boatman61 is offline   Reply With Quote
Old 02-04-2016, 13:14   #4
Senior Cruiser

Cruisers Forum Supporter

Join Date: Aug 2009
Location: between the devil and the deep blue sea
Boat: a sailing boat
Posts: 17,314
Re: What to do about corroded keel bolts

Pull them out and check them out. If you have lead ballast, you may have to drop it. Remember the stick goes first then.

b.
__________________
barnakiel is offline   Reply With Quote
Old 02-04-2016, 13:37   #5
Marine Service Provider

Join Date: May 2012
Location: New Orleans
Boat: We have a problem... A serious addiction issue.
Posts: 3,940
Re: What to do about corroded keel bolts

I may be wrong, but I am pretty sure that's a lead keel.

Inspecting the bolts isn't terrible, just take the mast off, unbolt the keel, cut away the keel foot, and lift the hull off the keel. If the bolts are in good shape you don't even have to move the hull, just drop it right back into place, and bolt it back together. If the keel bolts are shot, then you probably need to send it to a foundry to be repaired. It's possible to DIY if the yard will let you, but you have to melt the lead away from the J bolts, remove the old steel ones, and replace with new bolts. Then refil the channels with new lead (or the lead you melted away from the channels previously of course.

Frankly with the health concerns over lead vapors, I wouldn't do it myself.
__________________
Greg

- If animals weren't meant to be eaten then they wouldn't be made of food.
Stumble is offline   Reply With Quote
Old 02-04-2016, 14:20   #6
Registered User
 
UNCIVILIZED's Avatar

Join Date: Jun 2014
Location: Up the mast, looking for clean wind.
Boat: Currently Shopping, & Heavily in LUST!
Posts: 5,629
Re: What to do about corroded keel bolts

Given how they look, & that they're well over half a century old. At a minimum, you need to check the section of them between the top of the keel, & the parts of them which you've shown us.

And I hate being the bearer of bad tidings, but realistically, it's time to replace them. Because you don't have a lot of quality metal to work with when reattaching your keel as it is, if/when, you drop things for an inspection.
__________________

The Uncommon Thing, The Hard Thing, The Important Thing (in Life): Making Promises to Yourself, And Keeping Them.
UNCIVILIZED is offline   Reply With Quote
Old 02-04-2016, 14:47   #7
Marine Service Provider
 
boatpoker's Avatar

Join Date: Nov 2008
Location: Toronto, Ontario or Bahamas
Boat: Benford 38 Fantail Cruiser
Posts: 2,593
Re: What to do about corroded keel bolts

If I saw those on an insurance survey, they would be in the "Needs Immediate Attention" section of recommendation section and recommended as "insurance for port risk only"

This essentially means I would be recommending the vessel not leave the harbour.

Thats what I'd write in the report, in my head I'd be saying ... "Holy crap those are toast".
__________________
That hysterical laughter you hear as you sail a way in your "new" boat ..... is the seller.
boatpoker is offline   Reply With Quote
Old 02-04-2016, 17:24   #8
Registered User

Join Date: May 2009
Location: Grenada
Boat: Shorebro,Royal 33 - Aloisius
Posts: 927
Re: What to do about corroded keel bolts

I hit a reef and sheared 8 of my 10 keel bolts. Now, that ended up being a good thing because they were VERY corroded and it forced me to replace. I had a marina do the job of course but watched all the steps, Spice Isle Marina in Grenada. With the boat on supports, the remaining two nuts were taken off. The boat was lifted with the keel supported. It ended up being fairly easy twisting out the old bolts. New rode was delivered from Trinidad, a local machine shop threaded both ends. Both the keel and boat were scraped and cleaned. New sealer was put on the keel and then the boat set back on the keel. Finally tightened the nuts each day for a few days. All in all, it was a fairly easy task and very happy it was done after examining the old rodes and their poor condition.


Sent from my iPad using Cruisers Sailing Forum
__________________
landonshaw is offline   Reply With Quote
Old 03-04-2016, 08:53   #9
Registered User

Join Date: Nov 2013
Location: Homeport: Oswego, NY
Boat: 1993 Sabre 362 #113
Posts: 351
Re: What to do about corroded keel bolts

Quote:
Originally Posted by Skipper Bob View Post
Hi,

I would like to ask for some advice. I've been scraping the peeling paint in my bilge to prepare for repainting it and noticed the keep bolts are quite corroded, as shown in the attached pictures.

The boat is a 1962 van de Stadt Pionier 9. A picture of the hull showing her keel is also attached.

I am now considering what to do about these keel bolts. Should this level of corrosion be a cause for concern? Am I about to lose my keel next time I encounter heavy seas? Or is this problem merely cosmetic? Should I just clean and paint over the bolts? Should I perhaps (as one friend here suggested) reinforce the bolts by welding on steel rings around each bolt? Or do it "properly", which probably means lifting the boat out of the water, removing the keel bolts and nuts and replacing them, which probably means removing and later re-attaching the whole keel?

As you can appreciate, I would like to avoid the latter, most drastic scenario.

Thanks for any advice and opinions.
The most drastic scenario is learning that the keel bolts needed replacing when the mast is pointing towards the bottom.

At least the nuts are looking pretty bad. Also have to worry about crevice corrosion which will be occurring beneath the washers and in the space between the bilge and the top of the keel.
__________________
Dave Lochner is offline   Reply With Quote
Old 03-04-2016, 09:08   #10
Registered User

Join Date: Feb 2013
Location: Muskegon,Michigan,USA
Boat: Columbia 34MKll
Posts: 6
Re: What to do about corroded keel bolts

I have the similar problem. 1971 Columbia 34. Iron keel. The bolts look ok but the nuts are fairly corroded. Thought about cutting wheel to nut. Replace one at a time so as not to lift hull from keel.
__________________
1canajun is offline   Reply With Quote
Old 03-04-2016, 09:16   #11
Registered User

Join Date: Nov 2015
Posts: 139
Re: What to do about corroded keel bolts

Amateur opinion here, use a cold chisel or nut breaker and take off a nut or two. Clean out and down to check extent of corrosion below the nut. If it looks decent, put on a fresh nut and washer and retighten to specs. If the bolt doesn't snap off while being tightened you likely can repeat this with all the nuts. BUT... all this means is that the keel is pulled snug against the hull, a good grounding may still cause the bolts to shear off if rusted deeply.
? What about x-ray inspection, the portable digital units may work. Anyone?
__________________
Dymaxion is offline   Reply With Quote
Old 03-04-2016, 09:59   #12
Senior Cruiser
 
seasick's Avatar

Cruisers Forum Supporter

Join Date: Sep 2007
Location: Bend, OR
Boat: Brewer designed Pacific 43 in fiberglass. Center cockpit set up for long-distance single handing.
Posts: 430
Re: What to do about corroded keel bolts

Your Van de Stadt Pionier 9 uses an iron keel which is a good thing in that your keel bolts are threaded into the keel.

If you have no immediate plans to head off long-distance sailing, I would try Dymaxion's suggestion of just replacing the nuts and washers, in water, if the bolts appear in reasonable good shape once you pull the nuts.

If you're heading offshore, I'd seriously consider replacing the bolts but you needn't necessarily haul out to accomplish this. You may have to weld on a big T-handle to extract them. They're just one more thing to keep you awake thinking about at sea.

While you're at it, carefully check your deck beams below your mast which is another common problematic area on these older Van de Stadt Pionier 9s.
__________________

__________________
seasick is offline   Reply With Quote
Reply

Tags
keel, keel bolts, rode

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
For Sale or Trade: U bolts, U bolts, and more U bolts off-the-grid Classifieds Archive 1 20-07-2012 16:33
wiring through hulls and keel bolts to anode? Jazman Construction, Maintenance & Refit 3 01-03-2008 06:21
Willard Keel Bolts MV Construction, Maintenance & Refit 4 29-08-2007 21:40
Keel Bolts..... Prflyer1 Construction, Maintenance & Refit 21 06-06-2007 17:54
Rust/Cracks Around Keel Bolts chicago sailor Construction, Maintenance & Refit 13 15-05-2006 16:25



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 01:39.


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.