Not sure what your cockpit looks like.  Pretty much that same panel showed
rot on my 35-1.  The cause was poor caulk under the coaming of the port
cockpit locker.  Your LF38 may be made differently.

I like Rick's suggestion about an access port.

Failing that, best option might involve scarfing in a new section.

Dennis C.



On Mon, Dec 7, 2015 at 3:00 PM, Patrick Davin via CnC-List <
cnc-list@cnc-list.com> wrote:

> So I'm doing a lot of projects lately, and was majorly bummed out to find
> the wall between the engine compartment and the lower foot of the port aft
> quarterberth has some significant rot. Frustrated because lately it feels
> like every project I fix, I find a new one. And this will be a big one.
>
> Please see pictures here:
> https://drive.google.com/folderview?id=0BxfHpwssU_6NNVBhbXpEZnhkUE0&usp=sharing
>
> As they say, pictures are worth a thousand words. It's a 2-3 foot section
> of the port engine compartment wall, abutting the storage compartments
> under the port quarterberth.
>
> One thing I'm perplexed on is - how did this happen? There are no leaks
> dripping onto this area as far as I can tell. The cockpit is above this and
> it doesn't have any major penetrations on this side. And the top of the
> bulkhead is solid. Normally when wood rots I expect it to start from the
> top, where the leak is.
>
> The only clue I have is this bulkhead had two cuts / gaps in the bottom
> (probably to run wires through) and that's where the rot seems to have
> spread out from. So maybe the moisture got in through the exposed grain at
> the cut?  There is high humidity in the engine compartment due to
> inevitable moisture in there. But also the rot is right behind the
> batteries (house #1 + starter), which I find suspicious. Is it possible the
> gel cells outgassing actually caused the damage somehow?
>
> From the pictures do you think this might be "dry rot"? (a particularly
> evil kind of rot which apparently spreads by fungus even without an active
> water leak anymore)
>
> If it's spreading I want to cut out the bad portion of the bulkhead and
> glass in new wood asap. If it's not spreading I can put it off, or even
> ignore it since it's not structural. I could even just paint over it with
> new waterproof marine paint?   If I have to cut it out, access will be
> tough - it's in the engine space, I'll have to remove the batteries, some
> wiring, and probably the exhaust lift riser, and the panel that covers the
> aft quarterberth storage compartments.
>
> The other thing is I can't even tell what kind of wood this was
> originally. It doesn't seem as strong as marine plywood or the wood used in
> other bulkheads. The bad wood seems sort of grey / bluish colored - I'm not
> sure if that's from the flaked off white paint or what.
>
> The other option is trying Git Rot injected into holes drilled into it.
> http://www.boatlife.com/git-rot/
>
> At this point mainly wondering if any of you have experience with this
> issue, particularly in this area (non-structural, between engine
> compartment and aft qtrberth storage compartments) or how something like
> this can happen (rotting from the bottom up rather than top down)?
>
> -Patrick
> 1984 C&C LF38
> Seattle, WA
>
>
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