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Old 12-09-2011, 12:12   #1
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Strange Spots on Wooden Hull - What Could they Be ?

During a recent inspection we discovered these marks on the hull.

The hull is made of Paraguyan cedar,a traditional boatbuilder´s wood around these parts.If google is to be believed it is a red cedar. The chainplates reside right behind where these spots are. No rusting nails as far as we can see, the chainplates may have rust.

Would anyone like to venture a guess as to what we could be looking at? This would really be the wrong time to take the boat out the water. I mean really ..

Thank you very much in advance.



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Old 12-09-2011, 13:19   #2
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Re: Strange Spots on Wooden Hull - What Could they Be ?

Charlie Cobra could no doubt tell you what you are looking at. I would PM him and see what he thinks.

My own opinion? It looks like something bleeding through from the chain plate area. If that is true then you may be having some wood loss caused by dissimilar metals interacting electrically. Nothing should be able to bleed through intact cedar. Alternately, many boats leak in the chain plate area due to the hull deforming under load. Is she tight in that area? I would take an ice pick or an awl and do some poking around inside and out. See if you find any soft spots.

Good Luck with it.

Todd
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Old 12-09-2011, 13:33   #3
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Re: Strange Spots on Wooden Hull - What Could they Be ?

Thanks Todd. I am already trying to get to the wood in order to check but there is an inner wood that doesn't allow me to reach the external wood. I will check it anyway this week. Thanks for the advice.
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