Chain Plate Bulkhead Repair - 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 > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 03-27-2009
Member
 
Join Date: Apr 2008
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
Islander30Bahama is on a distinguished road
Question Chain Plate Bulkhead Repair

Hey everyone,

I posted this on AS as well I figure the more input the better.

So this weekend after I get the motor running I am going to carefully remove a chain plate teak plywood bulk head. I pulled all the trim off in the head side of the bulk and I didn't like the spongyness of the wood. My plan is to pull the bulkhead out and see if I can repair it using penetrating epoxy.
Here is my plan for repairs.

1) Cut and remove fiberglass tabs that hold bulkhead in.

2)once bulk head is out inspect entire bulkhead for dry rot.

3)every three inches or so drill a hole into bulkhead from the edge about 10inches into it.

4) inject penetraing epoxy into each hole.

5) let cure for a few days in the garage.

6) reinstall bulkhead using west system epoxy and glass.

I am open to suggestions if anyone has any input. I figure I should do this project while I have the entire interior torn apart.

Thanks

Jeff
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 03-27-2009
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Wrote this reply on AS, and posting here as well...

Considering that the wood is spongy, I would do one of the following:

1) re-place the bulkhead, or
2) cut out the spongy area and scarf in a new wood, or
3) cut out the spongy area, scarf in new wood and sister an additional board to it.

Method 1 is probably the nicest looking, but the most work. Method 3 is probably considerably stronger than method 2 and well worth doing. I'd also recommend you do whatever you do on the port side to the starboard side or vice versa.

If the wood is spongy, it has started to rot and probably lost significant portions of its strength. This is a chainplate that holds your mast up.... do you really want to just repair it with penetrating epoxy instead of doing a proper repair.

Quote:
Originally Posted by Islander30Bahama View Post
Hey everyone,

I posted this on AS as well I figure the more input the better.

So this weekend after I get the motor running I am going to carefully remove a chain plate teak plywood bulk head. I pulled all the trim off in the head side of the bulk and I didn't like the spongyness of the wood. My plan is to pull the bulkhead out and see if I can repair it using penetrating epoxy.
Here is my plan for repairs.

1) Cut and remove fiberglass tabs that hold bulkhead in.

2)once bulk head is out inspect entire bulkhead for dry rot.

3)every three inches or so drill a hole into bulkhead from the edge about 10inches into it.

4) inject penetraing epoxy into each hole.

5) let cure for a few days in the garage.

6) reinstall bulkhead using west system epoxy and glass.

I am open to suggestions if anyone has any input. I figure I should do this project while I have the entire interior torn apart.

Thanks

Jeff
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 03-27-2009
Member
 
Join Date: Apr 2008
Posts: 86
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 7
Islander30Bahama is on a distinguished road
Thanks

Thanks SD,

I will take some pictures this weekend and post them with the progress of this project so that It may helps others here in the forums.

The only soft/spongy areas of the bulkhead are along where it is tabbed to the hull. If I were to cut that part of the bulkhead off use it as a template to replace with 3/4 in marine plywood then do a sistering board on the forward side of the bulkhead so its in the head and not very visible.

When sistering the two together should I use epoxy and thru bolt it all together for added stiffness?

This is a repair I want to do the right way the first time for in the future I plan to keep this boat a long time and do some coastal sailing with her.

Thanks,

Jeff
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 03-27-2009
sailingdog's Avatar
Telstar 28
 
Join Date: Mar 2006
Location: New England
Posts: 43,290
Thanks: 0
Thanked 11 Times in 11 Posts
Rep Power: 13
sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice sailingdog is just really nice
Quote:
Originally Posted by Islander30Bahama View Post
Thanks SD,

I will take some pictures this weekend and post them with the progress of this project so that It may helps others here in the forums.

The only soft/spongy areas of the bulkhead are along where it is tabbed to the hull. If I were to cut that part of the bulkhead off use it as a template to replace with 3/4 in marine plywood then do a sistering board on the forward side of the bulkhead so its in the head and not very visible.
The interior layers may be spongy much further along since water can wick a long distance along the plies of the plywood, and being trapped between the outer plies, it wouldn't be immediately visible and could be completely rotten.

Quote:
When sistering the two together should I use epoxy and thru bolt it all together for added stiffness?
Yes, laminating the two pieces together with epoxy and through-bolting is the way to go.

Quote:
This is a repair I want to do the right way the first time for in the future I plan to keep this boat a long time and do some coastal sailing with her.

Thanks,

Jeff
Good to hear, glad to help.
__________________
Sailingdog

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Telstar 28
New England

You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

If you're new to the Sailnet Forums... please read this
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
.

Still—DON'T READ THAT POST AGAIN.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 03-27-2009
Faster's Avatar
Just another Moderator
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 15,354
Thanks: 88
Thanked 243 Times in 234 Posts
Rep Power: 10
Faster has a spectacular aura about Faster has a spectacular aura about Faster has a spectacular aura about
If the bulkhead is truly rotting near the tabbing, then it may well separate from the tabbing quite easily. If the original tabbing itself is sound, you might consider leaving a couple of inches of the original tabbing in place, leaving a double ribbed flange into which you can insert the new/repaired bulkhead. The rotten wood can be dug/scraped out of the resulting cavity.

This would give you the ability to be certain that you've put the bulkhead back in the same place, an exisiting, original (presumably well bonded) basis for bolting into after you've retabbed over the entire assembly, with less reliance on a totally secondary bond. You could epoxy the new bulkhead into the old tabbing flange, retab, AND through bolt...

All this assuming the original tabbing is sufficient, and still well bonded to the hull.
__________________
Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




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
To Have and To Hold (anchoring) GoodOldBoat Good Old Boat 6 12-28-2010 06:50 AM
Leaking Chainplate Sixbrothers Gear & Maintenance 20 06-23-2009 12:03 AM
Bulkhead repair......ive put this off long enough. SVDistantStar Gear & Maintenance 3 08-29-2008 01:58 AM
Choosing and Installing an Electric Windlass Sue & Larry Gear and Maintenance Articles 0 09-06-2002 09:00 PM
Dueling Rodes Tom Wood Seamanship Articles 0 10-21-1999 09:00 PM


All times are GMT -4. The time now is 10:42 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

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.