My friend’s 1983 LF38 has a rather large removable rectangular panel in the area you are talking about (which provides pretty fair access to the right side of the engine, transmission, and v drive, as I know from personal experience). There are stainless tabs on the edge of the panel that keep the surface flush with the quarter berth side of the bulkhead, and the quarter berth cushion holds the panel in place.
Maybe the area of rot is an opportunity to increase the engine compartment access. Rick Brass Imzadi C&C 38 mk 2 la Belle Aurore C&C 25 mk1 Washington, NC From: CnC-List [mailto:cnc-list-boun...@cnc-list.com] On Behalf Of Frederick G Street via CnC-List Sent: Monday, December 07, 2015 6:50 PM To: cnc-list@cnc-list.com Cc: Frederick G Street <f...@postaudio.net> Subject: Re: Stus-List Rot in non-structural bulkhead - thoughts? Patrick — from what I can see in your photos, I wouldn’t be surprised if the battery (or a previous one) had something to do with the rot. The discoloration and deterioration of the wood could have come from acid leak or outgassing of hydrogen sulfide from a battery being overcharged. Your best bet, if you have enough access, would be to cut back a rectangular section of the plywood until you reach “good” wood, then put in a patch out of new marine plywood and get a layer of glass over everything. That should keep the battery issue in check in the future. Fred Street -- Minneapolis S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^( On Dec 7, 2015, at 3:00 PM, Patrick Davin via CnC-List <cnc-list@cnc-list.com <mailto: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 <https://drive.google.com/folderview?id=0BxfHpwssU_6NNVBhbXpEZnhkUE0&usp=sharing> &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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