21 September 2012

Where have you been, naughty girl?

Once upon a time, my uncle and aunt got a dog from a New York pound and discovered that at some point in his former life Bruno had been taught to stand on his hind legs and walk about.  It was eerie to see because we had no idea of how he had come to learn that; and of course Bruno had no way of telling us.  The knowledge added a mysterious sort of depth to his personality that, in part, helped make him a most interesting and entertaining little guy.


As I was stripping the bottom of Diana I uncovered (literally) this.



It's a patch in the hull, not badly done (though it could have been better faired), apparently from when something holed the boat.  I imagine it may have been some ugly metal angle-iron or something poking up along a bulkhead when the boat rode there during a tidal or storm surge.  For a fin-keeled boat to sustain a hull holing in a location like this-- under the quarter berth-- for any other reason suggests some kind of funny business.  Any puncture from sharp impact afloat would have occurred forward of the keel; right?

My fear is that the boat was allowed to lie over on her side, which could (but not conclusively) account for a hole here as well as the PO's having had to rebed the keel, since that is how a fin-keeled boat sustains damage when it goes aground.  But the keel has been fixed (by me), the rest of the hull is sound, and so there is really no way of knowing at this point.  It's like undressing your lover and discovering a scar from an injury or some surgery-- it begs a question; but at least in that case you could expect some sort of answer to either set you at-ease or put you off trusting her, if only for the present.


And so this shall remain as a mystery, documented in my (very poor) photos and very soon to be covered over for ever by the epoxy barrier coating, a piece of Diana's past that she is unwilling or unable to tell me about and which inevitably, however unfortunately, imparts at least some little skepticism as to her former reputation. 


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Custom cooler

This is my really cool customized camping cooler for Diana.


Here shown holding what it usually does-- iced tea-- is the interior of the cooler as I modified it.  The divider is Plexiglass left over from the cabin windows.  It slides down into place between Starboard fiddles mounted in 5200 (to seal the screw holes so water doesn't get into the foam core; it does not stick to Starboard).  The side corners are cut out to let water reach the drain fitting, a plastic one I installed in the forward end.  The drain deposits its dribble into a PVC receptacle in the floor of this compartment which in turn carries the dribble forward into the bilge.  The drain in the cooler is cut off flush with the bottom so the cooler will sit level (and thus structurally sound) on a flat surface like the dock.

Beyond the divider Starboard fiddles hold a grilled shelf for smaller items.  The bagged ice goes under the grill.  (This cooler is not big or strong enough to hold a full block.  Nevertheless, with a plug in the drain it will hold some residue of ice-- not merely cold water-- for 5 days.)  With this configuration, there is a place that remains free of ice cubes to hold taller things, like full gallons of water or iced tea, wine bottles, etc.  The smaller stuff goes above the ice in back.

The grill is a leftover section from the light baffle material I got when installing a work light in my mother's kitchen.  It is not very strong and was annoying to cut, as a jigsaw only shattered it and a bandsaw did only a little less damage.  I resorted to cutting it by hand with a very fine hacksaw blade.  Of course the sides are not parallel, due to the cooler's shape, and the back edge is slightly rounded.  And then there is the issue of ensuring that the square holes, when cut through, allow enough support along the fiddles.  As can be seen I got it aligned so that one long strake rides on each side fiddle.

The cooler is not a 'marine'-spec one but a standard Coleman '5-day' campers'-spec one.  The marine ones all have top hinges along the side.  As seen here Diana needs one hinged from the end-- or, as here, not at all.

The cooler sits under the ladder; its top is covered by the bottom step (which I personally never use, as I step on the quarter berth edge when entering or leaving the cockpit).  This step is hinged at the back.  I do not yet have it rigged but I want to have a Fastpin slid through the ladder side(s) to hold up the step.  Then one can lift the cooler lid without having to hold up the weight of the step.  The step does not protrude far enough beyond the upper one to allow anyone to accidentally step on it and break it or bend the Fastpin.  If it's pinned up, you will see there is no step below (or just the cooler lid) and step onto the quarter berth instead.

The pencil scribble on the not-yet-painted right side (left in photo) is marking where the recessed red LED footlight will go.  With the step and lid down, it illuminates the step.  With the step up, it illuminates the cooler.

The heavy fiddles screwed to the sides support the step, which is 1/2" plywood with a 3/4" step plate epoxied to the front edge.  It was varnished about 7 years ago with Captain's Varnish and is still holding up well.

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Cockpit drains

Hunter, in their infinite wisdom (read that: attempts to save money) devised a simple way to install cockpit drains in the back of the H25 cockpit.  I really cannot fault this too much because they spared the cockpit sole itself from the potential for damage; and indeed my 38-year-old balsa-cored cockpit floor is one of the soundest parts of the boat.  But by installing the through-hulls through the vertical after bulkhead of the cockpit they kept much of the water from running out.  You always had to sponge out the last 1/2" or so while people stood towards the rear of the boat to get it all to run down to the drains.

This was something I meant to remedy from the start.  I found some nylon drains by Starboard East (that's the brand name) having a flattened side, meant to go in a vertical bulkhead down low to the floor; but they are nylon and subject to UV-exposure damage and stems' cracking and this is not a place one wants to risk that.  After searching high and low I found what the plumbing guy called 'bar-sink drains', at 1 inch diameter (though I have 'bar-sink drains' in the head and galley sinks and they are 'standard' at 2 inches).  They are rugged, heavy brass, but not stainless-steel and will go green unless I paint them.


Here is the mess I started with.  In this photo the starboard drain has already been chopped out.  I left the port side one for later as the boat on its stands is sort of tilting to that side and rainwater will have to go somewhere.  I had once removed the old Marelon (nee RC Marine) through-hulls and rebedded them with 5200 to stop leaks when I first got the boat.  Now I just hacked them out with a chisel.

The flange itself, now separated from the stem, is standing next to the hole.

All the tools used are in the picture!





The next step was to fill the hole.  Here are shown the 'communion wafers' of fiberglass to be used for the fill.  I used about six of these for each hole. These are of 1708 biaxial, because it was what was available.  For a small job like this really any 'glass will do.  I would not use cloth alone; but if you had at least most of it done in plain mat it would be fine.




The smaller ones are for the other holes in the cockpit getting filled at the same time. (Yes; I used the one with the bite out of it.  It doesn't matter.)



My simple 'mooyock' system for this is to apply duct tape to the back or harder-to-get side (the outside of the hull, for example) and to fill from the front or upper side.  Why make life hard on yourself?


This photo shows the power of 5200-- the gash to the left of the hole itself is from the through-hull's parting from the 'glass and its 5200 taking some 'glass with it.








Here is a close-up of the port-side hole before filling.  Apparently I missed a little with the duct tape (doing it by feel with arm down port-side seat locker).













Here is the port-side hole filled.  This-- like all the rest of these holes about the cockpit-- will get sanded and faired with Microlight before Epoxy Primekote and paint.

There is nothing wrong with overfilling it, so long as it's with 'glass.  A patch like this is easy to sand flush and it's reassuring knowing you've got solid material completely filling the hole.

As ever proper preparation is key.  Scrub the back and front sides with sandpaper and clean thoroughly with acetone before mixing up your resin & hardener.


The holes in the bulkhead above were from something the PO or the factory had here.  I really don't remember.  The smaller one is the lower drain hole of the port-side seat locker's drain, which I eliminated when I made the replacement drain trough (which now only uses the upper hole).










In this photo the right side (to the left) is already done (more or less) and the left side is to be filled.  Some days passed between these stages, to allow for a weather window which would let the port one cure before rain might leak through the cover.

You can see how Hunter's money-saving scheme for these did not include ensuring that they were mounted symmetrically.

The ugly patched place to port is from where the PO had installed his bilge pump's Auto-Off-Manual switch-- right into the bulkhead, without sealant, and without cognizance of what happens when these electrical things get wet.  In this photo it's been filled with 'glass and begun to be faired with Microlight.

The big round hole to starboard is for the Whale manual bilge pump.

 
Here are the drains newly installed.


These nifty little fittings came with very good flanged nuts for the other side.  (I did not use the rubber gaskets.)  The surface-mount flanges are not too thick-- certainly much thinner than the flanges of normal nylon or Marelon through-hulls would be.  When I drilled out these holes I was relieved to find that they would miss all the balsa, which starts about an inch or two forward of the holes, and would go through solid 'glass.  It did occur to me that I might rout out the 'glass to set the flanges flush; but what tool would I use for that in this tight corner and how would I get them smooth and level enough?  I have lately decided I will mask these off and fill the space behind them and around to the outboard edges with Microlight, so as to keep water from pooling against the edges of the flanges.  Though I set these in with 5200 I did not get as much 'ooze-out' as I would have liked.  Most of it is between the stem and the hole I drilled for each one, where it should be.


My yardmate Roland made a very good point that these 1-inch drains are probably too small for offshore work.  I don't expect to do much sailing far offshore in this boat; and boats with cockpit drains of this size or worse have done successful passages.  But his point is well taken; and once I have fewer tasks in front of me I may look to replacing or adding to these with larger ones.  My choice of size for these was governed by only the existing transom fittings; but they could be changed too.

After discussing with him I did decide I will not install check-valves in these lines.  They are almost straight runs and are subject to pooping from heavy water directly aft, which would lead to not only water shooting into the cockpit but the water already in the cockpit not going out.  But the check-valves would further restrict water flow.  The H25 is pretty buoyant aft and would probably rise away from heavy swells; but who is to say what happens in such conditions?  People with experiences about cockpit flooding at sea are encouraged to comment!


I don't have a photo of the underside, but the Marelon elbows I meant for the bilge-pump outlets screwed onto these brass fittings perfectly (with plenty of Teflon thread-seal tape) and I was able to hook them up using the old hoses.  I did, however, wait for the 5200 to fully cure (about a week).  Shields no.148 hose can be a monster to fight on and off; and experience has shown it is strong enough to work loose the 5200 on recently-bedded fittings and through-hulls.  So-- proceed gently, with patience.

I reused one of my old hoses for this (just temporarily) but found the other was too short.  I hacked off a piece from the (as-yet) unused bilge-pump lines, not measuring very well as I was doing all this from lying inside the starboard-side locker, and got it almost too short again.  For now one clamp is sufficient; but these will all be done properly before the boat goes in.


The very dusty state of this cockpit is due to its being prepared for Epoxy Primekote and paint.  The nonskid of the sole did come off with scraping from a chisel; but it is adhered really well and since I don't need to bed down any more hardware to the sole I may only rough it up enough to take the Primekote and paint over it.  The same goes for the deck/cabintop.


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Bare-bottomed girl

I suppose this really should read 'bare-bottomed lady', as she is 38 years old; but it got attention.


This status is the product of about 2 seasons of scraping and sanding (with everything else I have to do).  I began using Stryp-Eaze but I had a very bad scraper and made little progress.  I changed to Pettit's Bio-Blast, which I found did not respond to following the directions as they were given.  It's supposed to stay on 15-25 minutes without drying; but I found that on a moderately-warm day, not even hot, it went from gel to utter varnish in much less time than that.  The best tactic was to apply it, using a brush from a cup, wait about 5 minutes and then go at it.  I got a really good deal on a scraper-- with two sets of blades-- at Harbor Freight for $2.99.  No complaints at all with this-- it worked great; but I did rotate the 4-sided blade several times before sharpening it as it did jam up pretty quickly.

I also found that the chemical stripper, having to soak into the paint in order to work well, does not work overhead!  On surfaces that were more on the bottom than on the sides, apparently the stripper merely hung on the paint, softening the very outer layer but doing little else.  So all of the bottom (read that: hardest-to-work-with) places were done mechanically, with 'Dusty' the orbital sander, 50-grit discs and hard work.


Here is a pic from earlier in the season which shows the very bottom layer of paint.  There were, apparently, three layers, all of old-school hard-shell antifouling.  This one was, of course, hardest to remove.  The chemical stripper did not permeate this paint, no matter how many times it was reapplied-- the greenish places are dried Bio-Blast which did not cut it.  For the most part it came off with the orbital sander (which meant that, for the most part, I wore my work home).

(May-Be is my cousin Mike's Capri 26 which was sold in the middle of this summer and relocated to its new home in New York.  This freed up plenty of room to work on mine!)

The black stripe came off well; apparently it was just standard enamel and the stripper ate it easily.  It was always too small and I will be redoing it completely more in keeping with the lines of the boat.


I am sure to have more on this later; but here I will add a reminder that the boottop stripe always has sheer, in both top and bottom edges.  Nothing looks worse than a perfectly-straight boottop, like how this one was.  The top, of course, reflects the sheerline of the boat.  The bottom edge does too; but much less conspicuously. For a boat of this size the bow end might be 2-1/2" above the actual floating waterline, the middle about 1-1/2" and the stern about 2" (I'll post my actual dimensions when I have worked them out). The bottom paint is exposed to the stripe (there should be NO hull color showing, ever).  Without getting too metaphysical you might think of the revealed bottom paint as that thin line of not-yet tanned skin that the woman shows just beyond her swimsuit at the beach.  It looks like vulnerability (a boat at rest should never show her bottom paint to strangers!) but it also indicates strength and hardiness, that she can and will endure whatever these elements hand out.  No one admires a boat that looks like it can barely stay afloat!


This view shows (albeit only slightly) some of the patching I did to the bottom.  The old through-hulls were removed and filled (the two larger circles below and beyond the stand pad).  Below them are seen the new through-hulls, which my daughter helped me install (it's always a two-person job).  The forward one is for the old SR Mariner speedometer-- I got a new fitting from them and almost too late realised it had to be aligned fore-and-aft to ensure the paddlewheel works properly.  I had expected the alignment was done by the paddlewheel itself.

I have since faired the very top of the keel in front-- it looks awfully big here but it's not really.


The other blotches are places where the gelcoat was chipped, not from blistering but just from age.  I filled these using Microlight most of the time, just whenever I had some extra from fairing the deck or keel blade.  This is not the best stuff to use under the waterline; as the filling compound will soak up water; but this bottom will all be sealed in barrier-coat epoxy and so it'll survive just fine.

I also mean to carry the barrier coating up above the waterline in some places, merely to seal some cracks there; so as yet there is no paint-to line or masking involved.

It is important to note that these ancient-gelcoat cracks are not moisture blisters.  One task I had long feared to attempt was to get moisture readings on this hull; but Jerry was checking his C44 in the yard and I borrowed the meter for Diana.  Being so long out of the water it now reads a very respectable 6 and below (out of 22) just about everywhere.  The place along the port side of the keel, where I had detected some delamination and then repaired, now reads under 10.  This might even account for standing bilge water.  The starboard side, however, reads about 16 which is alarming.  I will probe this from inside when I get the chance (before barrier coat) but it may reflect bilge water as well.

(The rudder reads well over 22-- with loud pinging from the detector meter! --which I will address in another place.)




Poor Diana, of course, is understandably embarrassed to be laid so bare and undignified before strangers' eyes.  I told her she has nothing to worry about, that at least it's a very good-looking bottom; but she was very prompt, as soon as I had taken these photos, to rap me in the head with a bit of stray line and then to lash out at my leg as I vaulted out of the hatch--


By the way this still hurts (wearing long pants is like sanding it with 80 grit all day); and I have promised the boat to get the barrier coat on as soon as possible.  At least then she'll be in her pewter-gray underwear, not a bad look for any hull.

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