Refairing Keel Hull Join... Bit of a gap! - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > General Interest Forums > Gear & Maintenance
 Not a Member? 
  #1  
Old 11-07-2009
Member
 
Join Date: Jul 2008
Location: Hull, United Kingdom
Posts: 62
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
RichP is on a distinguished road
Refairing Keel Hull Join... Bit of a gap!

Hey guys,
I'm looking for some advice on re-fairing the front of my Keel to Hull join, as you can see there isn't much sealant left there!

The keel is Cast Iron and is attached to the boat with 6 3/4'' Whitworth Studs wound in with a nut and washer inside the boat.
I replaced the keel studs early this year and the boat has not been in the water since so I know they are good!

I'm know to do it properly the keel needs to be rebedded, but can anyone recommend a way to sort it out for a season and I will do it next year.

Cheers
Rich



Oh and here's what a 30 year old keel bolt looks like:

Change them!
__________________
Hi, i'm restoring my old quarter tonner on a budget! Read my blog if your interested!

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #2  
Old 11-07-2009
deniseO30's Avatar
Lies about her age
 
Join Date: Nov 2006
Location: Bristol pa
Posts: 5,450
Thanks: 50
Thanked 53 Times in 45 Posts
Rep Power: 9
deniseO30 will become famous soon enough deniseO30 will become famous soon enough
Well it looks like it's beyond filling with 5200. it the sole to keel connection warped? Or is it just the keel hanging in the front? My guess is you need to do a structural repair and fairing of the keel bed. Your blog isn't there when I click on it.
__________________
Denise, Bristol PA, Oday 30. On Tidal Delaware River, Anchor Yacht Club. New Website!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

my current "project"!
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #3  
Old 11-07-2009
Member
 
Join Date: Jul 2008
Location: Hull, United Kingdom
Posts: 62
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
RichP is on a distinguished road
Sorry, the blog moved, i'll update the link now.

The Hull part of the keel hull join seems fine so i deduct either:
- The front of the keel has corroded a lot and left said gap
- The front keel bolt stretched enough to let the front drop and create a gap
- That gap was there from factory and had a lot off bedding compound in it.


Not sure, I think if the keel had dropped at the front i would be expecting gaps all along the join, not just the front, in a wedge shape.
Of course the Hull could have distorted or any number of things. :P
__________________
Hi, i'm restoring my old quarter tonner on a budget! Read my blog if your interested!

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #4  
Old 11-07-2009
Stillraining's Avatar
Handsome devil
 
Join Date: Jan 2008
Location: LaConner,Washington
Posts: 3,477
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Stillraining is a jewel in the rough Stillraining is a jewel in the rough Stillraining is a jewel in the rough
If it were me and I planed on droping it all next year and have already changed the bolts then I would not worry about it.... clean it out as best you could...inject in some 4200 as far in as you can...then just mix up some Fiberglass structrual filler and fair it.... I would not even use epoxie as it will be harder to remove next year ...a little bottom paint and go sailing.
__________________
"Go Simple...Go Large"

Relationships are everything to me..everything else in life are just tools to enhance them.


The purchase price of a boat is just the admittance fee to the dance...you still have to spend money on the girl...so court one with something going for her with pleasing and desirable character traits others desire as well... or you could find yourself in a disillusioned relationship contemplating an expensive divorce.
Reply With Quote Share with Facebook
  #5  
Old 11-07-2009
Member
 
Join Date: Jul 2008
Location: Hull, United Kingdom
Posts: 62
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
RichP is on a distinguished road
Ok will probs do that...
Have to go for the Sikaflex equivalent as 3M stuff is hard to come by privately in the UK.
__________________
Hi, i'm restoring my old quarter tonner on a budget! Read my blog if your interested!

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #6  
Old 11-07-2009
Stillraining's Avatar
Handsome devil
 
Join Date: Jan 2008
Location: LaConner,Washington
Posts: 3,477
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
Stillraining is a jewel in the rough Stillraining is a jewel in the rough Stillraining is a jewel in the rough
FWIW ...I did not know there were keel configurations that allowed for bolt changes like that...I think most are cast in place like foundation bolts and a particle destruction of the keel is involved to change them..I'm now interested in knowing how mine is constructed.

Might be a good thread to start.
__________________
"Go Simple...Go Large"

Relationships are everything to me..everything else in life are just tools to enhance them.


The purchase price of a boat is just the admittance fee to the dance...you still have to spend money on the girl...so court one with something going for her with pleasing and desirable character traits others desire as well... or you could find yourself in a disillusioned relationship contemplating an expensive divorce.
Reply With Quote Share with Facebook
  #7  
Old 11-07-2009
Senior Member
 
Join Date: Jun 2004
Location: West Michigan
Posts: 515
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 10
merc2dogs is on a distinguished road
Cast iron is normally threaded. lead is normally embedded. It's because of the need for deeper threading to produce the same strength in lead vs iron.
Iron has enough strength that it can hold with 'normal' bolts, lead would require a very deep thread and wide bearing surface to produce the same.
Similar to the difference between regular wood screws and screws made for use in MDF
Much cheaper/easier to place a 'J' bolt on the mold when casting lead.

Ken.
Reply With Quote Share with Facebook
  #8  
Old 11-07-2009
Senior Member
 
Join Date: Mar 2008
Posts: 885
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 7
GaryHLucas is on a distinguished road
Everyone mentions bedding the keel, but I'd be more concerned about sealing the joint to prevent seawater from getting to the bolts and the threads, like it obviously did in the past. It doen't look like this keel dropped any. It looks more like a rough casting, or a casting corroded away somewhat. I just had my keel blasted down to white metal and it was amazingly rough and had a ton of filler to make it fair. I'm now in the process of putting all that filler back.

Gary H. Lucas
Reply With Quote Share with Facebook
  #9  
Old 11-08-2009
Member
 
Join Date: Jul 2008
Location: Hull, United Kingdom
Posts: 62
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 6
RichP is on a distinguished road
Well bedding the keel does seal the joint, that's what its for.
Just for this year I shall try and fair it as best as I can. The studs only cheap I can change the bolts again if needed.

Stillraining, cast iron keels are very common in the UK and the keels studs are usually just wound straight in. They don't come out easy though... Put up a hell of a fight!
It seems a very suspect practice to cast in a bolt that can never be removed...
__________________
Hi, i'm restoring my old quarter tonner on a budget! Read my blog if your interested!

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Share with Facebook
  #10  
Old 11-08-2009
roline's Avatar
Cal 9.2 SilverSwan
 
Join Date: Jul 2000
Location: East Tennessee
Posts: 272
Thanks: 0
Thanked 1 Time in 1 Post
Rep Power: 14
roline is on a distinguished road
The cast iron keels on the Rush and Cal 9.2 have pockets on each side of the keel that the studs extend into and the studs have washers and nuts on both ends. Only the leading and trailing studs are into threaded cast iron.
As of to the gap that you have, I'm an epoxy fan even if you consider it temporary.

keelbolts
__________________
Cal 9.2 #19 SilverSwan
Reply With Quote Share with Facebook
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Fin Keel or Shoal Keel acmecoyote General Discussion (sailing related) 11 05-06-2011 04:39 PM
My First Boat...Boat Term Question... Kacper General Discussion (sailing related) 38 09-23-2008 06:52 PM
Fixed or swing keel, which is better? TimG2 General Discussion (sailing related) 15 03-20-2008 04:36 PM
Keel Bolt Repairs Don Casey Gear and Maintenance Articles 0 11-10-2003 07:00 PM
Keel Bolt Concerns Don Casey Gear and Maintenance Articles 0 10-12-2003 08:00 PM


All times are GMT -4. The time now is 08:03 AM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012