Coaming dowels FYI
Moderator: Jim Walsh
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Coaming dowels FYI
Here are photos of the original coamings (fore and aft ends), showing the dowels which were exposed by planing the board to remove eroded grain. Although 2 dowels look 'tapered', I believe this is because they were drilled at a slight angle, which made them look tapered after planing.
It appears to me that the function of these dowels is to prevent 'splitting' of the wood where it enters and exits the cockpit. The wood within the cockpit is under pressure (bending force) while the upper portion outside the cockpit is not. I believe these dowels were intended to prevent cracking from these uneven stresses along the grain. My boat is a later model (#794 out of less than 850), and these dowels may not be present in earlier models. They may have been added later in production to address splitting of the coamings. So, If you are replacing your coamings, it would probably be wise to duplicate these dowels.
The original coamings (shown) have been planed to remove the degraded surface wood. They are now less than 1/2" thick (13/32" actually). Thus replacement is necessary.
Stan Freihofer
1981 CD25 #794
Ft. Lauderdale
www.reefroof.com
Instant Bubble-head. Just add water.
I see no pictures
there are no pictures here......
They're there
I saw the pictures when first posted, and they're still here. Unless they took a brief intermission, perhaps your browser (or something) is blocking images?
Judith
Judith
To unpathed waters, undreamed shores.
The Winter’s Tale. Act iv. Sc. 4.
The Winter’s Tale. Act iv. Sc. 4.
- Ray Garcia
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Rot In The Coamings
Several times I have found rot in coamings and other similar places because of people overlooking a common mistake.
Whenever a limber or weep hole is cut in the bottom of a board and it isn't properly sealed or waterproofed, end grain is exposed which allows moisture to enter the wood cells and this eventually promotes wood rot.
Most of the time, the coaming has compound in place between the aft end, where it sits on the aft deck, but that doesn't seal the notch or hole that allows accumulated water to flow off.
Many times it is an honest mistake to not remember to seal all exposed wooden surfaces. Out of sight, out of mind (until it's too late).
O J
Whenever a limber or weep hole is cut in the bottom of a board and it isn't properly sealed or waterproofed, end grain is exposed which allows moisture to enter the wood cells and this eventually promotes wood rot.
Most of the time, the coaming has compound in place between the aft end, where it sits on the aft deck, but that doesn't seal the notch or hole that allows accumulated water to flow off.
Many times it is an honest mistake to not remember to seal all exposed wooden surfaces. Out of sight, out of mind (until it's too late).
O J
"If I rest, I rust"
Voting Member #490
Voting Member #490
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- Posts: 223
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- Location: 1981 Cape Dory 25 #794, S/V PEARL
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Re: I see no pictures
Don;
The photos take some time to load... maybe you need to wait a minute or two, depending on your internet connection... but they should load...
Stan
The photos take some time to load... maybe you need to wait a minute or two, depending on your internet connection... but they should load...
Stan
mattlydon wrote:there are no pictures here......
Instant Bubble-head. Just add water.