Bulwarks

I have noticed some rot in the mahogany bulwarks and I want to change them.
Has anyone else had this problem and what did you do about it? Why didn’t
they make them out of teak to begin with?
David & Susan
Te Wahapu Road
RD 1
Russell, NZ 0255
goodallradtke@xtra.co.nz

because it coast to much.

David & Susan wrote:

I have noticed some rot in the mahogany bulwarks and I want to change them.
Has anyone else had this problem and what did you do about it? Why didn’t
they make them out of teak to begin with?
David & Susan
Te Wahapu Road
RD 1
Russell, NZ 0255
goodallradtke@xtra.co.nz

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I believe one can order a BCC with mahogany trim or with teak trim.  The cost of teak per board foot is almost twice that of mahogany in the U.S.  If I lived in New Zealand or Australia, I would consider replacing them with wood that was native to either New Zealand or Australia - such as Blue Gum.  Based on articles in Woodenboat and Classic Boat, there are excellent woods for boat building in your region of the world.
 
S/V IDUNA
----- Original Message -----
Sent: Wednesday, June 19, 2002 10:57 PM
Subject: [bcc] Bulwarks

I have noticed some rot in the mahogany bulwarks and I want to change them.
Has anyone else had this problem and what did you do about it? Why didn't
they make them out of teak to begin with?
David & Susan
Te Wahapu Road
RD 1
Russell, NZ 0255
goodallradtke@xtra.co.nz



Dave, sorry to hear you have discovered rot in your Honduras Mahogany
Bulwarks, but you are not alone.
Personally, if I had my choice, I would have wished for the cover
board to be made entirely out of GRP.
On Calliste, rot developed under a bulwarks stancion. The bedding
compound under the stancion failed to keep out water. The water
intrusion continued under the stancion and down the all thread bolt
and leaked inside.
Upon disassembly, I discovered a cracked and deteriorated black “o”
ring, that had been placed around the bolt before the stancion was
put in place and tightened down.
It struck me as bad design, to place a “o” ring on all thread, and
then squish it flat upon tightning the bolt.
Another discovery was that when you squish 3M 5200 to paper thin, the
bubbles in the compound pop and thus make this paper thin seal loaded
with crecent shaped holes which hold the intruding water and rot is
the result.
You can see a photo of the cover board repair on Mike Anderson’s web
site: http://andersonboatworks.com click photos click Calliste

As we all know bad design leads to premature maintaince. I learned
that if you champhor both the bottom of the stancion post hole and
also champhor the cover board hole this leaves a annular groove
around the bolt, so when the post is tightened down the bedding
compound squishes in around the bolt, filling the annular groove, and
the resultant bedding compound “o” ring is effective in stopping the
leaks, but the problem of the paper thin “hole ridden” 5200 is still
present under the rest of the stancion foot print on the cover board.
Solution here is to find a way not to squish the 5200 flat and paper
thin. I leave you to think up an idea how to do this, because as you
can see in the photo, I changed to bronze stancions, to help to
relieve the problem of reoccuring rot, and so far it seems to work.
Good luck, Douglas

One option to squeezing out all the 5200 is to hold off on tightening down all the way upon installation (maybe a 1/16th)....then after the 5200 has firmed abit (24 hours)....do a final tigtening......ideally, you'll have a good healthy (visible) squeezeout of 5200 that can then be improved upon by a final turn or two on the bolt, sloted head, etc.
 
Tom Chapman
St. Helens
----- Original Message -----
From: dwkayaks
Sent: Thursday, June 20, 2002 11:58 AM
Subject: [bcc] Bulwarks

Dave, sorry to hear you have discovered rot in your Honduras Mahogany
Bulwarks, but you are not alone.
Personally, if I had my choice, I would have wished for the cover
board to be made entirely out of GRP.
On Calliste, rot developed under a bulwarks stancion. The bedding
compound under the stancion failed to keep out water. The water
intrusion continued under the stancion and down the all thread bolt
and leaked inside.
Upon disassembly, I discovered a cracked and deteriorated black "o"
ring, that had been placed around the bolt before the stancion was
put in place and tightened down.
It struck me as bad design, to place a "o" ring on all thread, and
then squish it flat upon tightning the bolt.
Another discovery was that when you squish 3M 5200 to paper thin, the
bubbles in the compound pop and thus make this paper thin seal loaded
with crecent shaped holes which hold the intruding water and rot is
the result.
You can see a photo of the cover board repair on Mike Anderson's web
site:   http://andersonboatworks.com    click photos  click Calliste

As we all know bad design leads to premature maintaince. I learned
that if you champhor both the bottom of the stancion post hole and
also champhor the cover board hole this leaves a annular groove
around the bolt, so when the post is tightened down the bedding
compound squishes in around the bolt, filling the annular groove, and
the resultant bedding compound "o" ring is effective in stopping the
leaks, but the problem of the paper thin "hole ridden" 5200 is still
present under the rest of the stancion foot print on the cover board.
Solution here is to find a way not to squish the 5200 flat and paper
thin. I leave you to think up an idea how to do this, because as you
can see in the photo, I changed to bronze stancions, to help to
relieve the problem of reoccuring rot, and so far it seems to work.
Good luck,  Douglas



David and Susan,

I believe the bulwarks were offered in both mahogany and teak when in '77 when we bought our bare hull #22.  And while teak is more rot resistant than most mahogany, no wood is rot proof. It still has to be maintained with paint, varnish or oil and the caulking kept after to avoid water encrochment, etc.  And rot can be picked up anywhere and for a lot of reasons. It is wood after all.

Except for the walestrake (mahogany) that Sam Morse installed we finshed our boat ourselves both inside and out. Unfortunately we got beat up pretty bad in Puerto Rico in '98 (hurricane Georges) and had to replace all the exterior wood including bulkwarks, covering boards, walestrake and chain wales. The only rot we found was in a few small places on the bulwark that we installed and a small portion of the walestrake that was caused by our installation of a rubrail.

To rebuild, we took the boat to Trinidad where the cheapest wood was teak and so refitted with that. I wold have preferred to go with mahogany again but I couldn't find a 'grade' that was being brought out of South America that I liked.

One thing I particularly like about the BCC's but see it being left off, is the wooden walestrake. I think it addes a tremendous amount of 'class' to the classic design and the boat just doesn't look as good without it. It's like the BCC with only a three-foot bowsprit. I guess it appears as representing too much work and additional costs for some owners. Too bad.

Stan on Waxwing #22

Photo: Original mahogany with long rubrail. Re-fit left off the rubrail and just included a chainwale.

 

 

  David & Susan wrote:

I have noticed some rot in the mahogany bulwarks and I want to change them.
Has anyone else had this problem and what did you do about it? Why didn't
they make them out of teak to begin with?
David & Susan
Te Wahapu Road
RD 1
Russell, NZ 0255
goodallradtke@xtra.co.nz


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stan where have you ben . frank on shawnstar.

Stan Roeder wrote:

 

David and Susan,

I believe the bulwarks were offered in both mahogany and teak when in '77 when we bought our bare hull #22.  And while teak is more rot resistant than most mahogany, no wood is rot proof. It still has to be maintained with paint, varnish or oil and the caulking kept after to avoid water encrochment, etc.  And rot can be picked up anywhere and for a lot of reasons. It is wood after all.

Except for the walestrake (mahogany) that Sam Morse installed we finshed our boat ourselves both inside and out. Unfortunately we got beat up pretty bad in Puerto Rico in '98 (hurricane Georges) and had to replace all the exterior wood including bulkwarks, covering boards, walestrake and chain wales. The only rot we found was in a few small places on the bulwark that we installed and a small portion of the walestrake that was caused by our installation of a rubrail.

To rebuild, we took the boat to Trinidad where the cheapest wood was teak and so refitted with that. I wold have preferred to go with mahogany again but I couldn't find a 'grade' that was being brought out of South America that I liked.

One thing I particularly like about the BCC's but see it being left off, is the wooden walestrake. I think it addes a tremendous amount of 'class' to the classic design and the boat just doesn't look as good without it. It's like the BCC with only a three-foot bowsprit. I guess it appears as representing too much work and additional costs for some owners. Too bad.

Stan on Waxwing #22

Photo: Original mahogany with long rubrail. Re-fit left off the rubrail and just included a chainwale.
 
 
 
 

  David & Susan wrote:

I have noticed some rot in the mahogany bulwarks and I want to change them.
Has anyone else had this problem and what did you do about it? Why didn't
they make them out of teak to begin with?
David & Susan
Te Wahapu Road
RD 1
Russell, NZ 0255
goodallradtke@xtra.co.nz
 

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Risk Free!
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