Monday, 12 May 2014
More work on the Tiller fitting...
He explained the modifications I needed to make to the existing plugs and the requirement for a core box. He also provide me with a couple of sketches which was just as well because despite his patient explanations I only half understood. I didn't want to disturb his Saturday morning any further and hoped that it would sink in with further study of the diagrams.
Here are the modifications to the plus which I managed to complete by about 2pm
The extra bits shaped in and stuck on with marine filler are to required in order to get the things out of the sand without damaging the sand mold left behind.
Next up was making the "core box". This is what's needed to form a sand core of the same (hopefully) dimensions of the shaft and which is then inserted into the molds created by the plugs. This was what took me the longest to get my head around and I still can't say I completely understand it far less explain it properly.
Quite how to go about making this thing was the next challenge. Luckily Chris dropped by as I was deep in head scratching mode and suggested casting it from the previous inside-out version (see previous post). That however required extending it which I achieved by extending both ends with stiff cards and then pouring in resin:
The resulting shape required a lot of tidying up before it could then be place in a container (an empty marine filler tube provided by Chris into which I then poured more resin (having previously waxed all the surfaces:
That got so hot (the resin hardens as a result of a chemical reaction with the hardener and that produces heat) at one point that it started to smoke and I was worried the whole boat might go up in flames.
That was the last job on Saturday at about 7 pm before going out for a curry with Alan.
After a lousy night's sleep (there was gale blowing all weekend which added to the affects of the curry and my increasingly frustrated state of mind I think took their toll) the first job was to cut the mold off.
This I managed but the resin did not pour properly and left cracks and this was the result after removing the mold and cutting out the plug:
However, by lunchtime after a great deal of work I had repaired the two halves and added the internal tapers required by Mike:
The bit in the middle is the extended plug from which I made the cast.
I spent the rest of the day filling the holes where the anode bolts had been (see a previous post for why); removed the flexible water tank for repairs/replacement and the old log impeller which I'm going to replace.
On the way home I dropped off the plugs and core box at Mike's. Unfortunately he was not in so I was not able to establish whether my work would do or not. As of the time of writing this I have not heard from him and so am hoping no news is indeed good news. Of course whether the resulting casting will fit the rudder post is yet another matter.
To be continued....
Friday, 9 May 2014
Expletives galore and got a date
The two halves will be used to create impressions in sand into which the molten bronze will be poured. Somehow they will be able to produce one solid bronze version of the above but only after I have done some more more work.
It took me almost the entire weekend to produce the above - hence the reference to expletives of which there were plenty - and (wrongly as it turned out) a solid inner plug for the hole. As Mike pointed out he needs a hollow version of that not a solid one. I haven't yet got my head around how he will use the eventual three pieces to cast the final object and have to visit him again for tuition on further modifications to be made to the above too before he can use it. I hope that doesn't take up another precious weekend.
I've now booked a slot with the marina to lift AS back in on 2nd June. With a couple of days off work, less (as it were) a Saturday that I'm required at home to celebrate my Grand daughters (twins) birthday, that means I have about 8 days to:
- Install the new rudder shoe (that Mike will make soon I hope)
- Re-fit the prop plus related anodes
- Fill the old anode holes in the hull (removing this completely because it looks like it may have contributed to the corruption and poor performance of the Verometal anti-fouling.
- Fit new transducers for Log and Echo-sounder (which will require removing the flexible water tank somehow)
- Final tightening of the new chain plates
- Re-antifoul with the replacement Verometal
- Clean and wax/polish the hull
- Service the sea cocks
- Replace Galley hull skin fitting but note below
- Stern gland stuffing box - I'll give it another go if I have the time but I haven't been able to shift the bloody thing, but I have pumped grease all the way through until it comes out the stern tube without coming out of the gland stuffing box, so I'm concluding that will keep the water ingress down to acceptable levels
- Lightening conductor only needs the water tank out rather than the boat on dry land
- Not going to fit a clever fridge so only need to replace galley skin fitting with like for like (that will then mean all skin fittings have been replaced).
Also, while it's not an out-of the-water job, the fact that I've clearly not got any sailing in yet (and will have very little sailing time this summer anyway due to work and domestic commitments) it looks like I will postpone the fitting of the 2 x 100 W solar panels that have been sitting at home for 15 months already) until next year!
An extra in-water job to add to the previous list is to ensure that the electrical circuits are not aggravating the electrolysis reactions which seem to have buggered up the previous Verometal anti fouling. I hope to draft Mick in for that and a number of other electrical jobs.
Tuesday, 29 April 2014
Bow made good, footless and wheeless
First I had to remove the plastic bag covering the hole which previously I had filled with expanding foam. That stuff is very useful but horrid to work with it sticks to everything and is impossible to get off one's skin once it has set which it does very quickly. It had continued to expand after taping on the plastic bag so there was a lot of excess to remove. Fortunately it is very easy to cut one dry and so that was achieved quickly.
Next I had to insert a a plastic gasket over the top of the foam because the resin that I would use to make good the bow would dissolve the foam. I used a section of a Jeckell's sail bag and stuck it in place with marine sealant. Then a few layers of fibre glass resin and matting until it looked like this:
The next day - once again with Alan's help I fitted the stern chain plate permanently and was then able to refit the backstay, forestay and furling gear. That took a few hours. Fitting roller furling gear is a fiddly job - at least I find it so. Despite re-reading the instructions a number of times I couldn't work out how to keep the foil in place in order to insert the various screws. I resorted to a bit of tape that just about did the job. Once I had finished I discovered the grub screw for that purpose! Anyway I got it all back together as you can see from the photo below and despite the boat still being stuck firmly on dry land, it started to feel a bit more like a boat again. I haven't transferred the shrouds to the new chain plates yet - that can wait until the boat is back in the water.
I took the week off after Easter and was back at the boat on the Tuesday and Wednesday.
First job with Chris's help was to remove the outer prop bearing casing. This we managed but instead of the expected cutless bearing Chris discovered it was a white metal bearing. This apparently is poured in place in liquid for (having previously ensured plenty of grease to prevent the white metal boding with the shaft. However Chris also diagnosed significant wear on the prop shaft and concluded there would be no point in replacing the bearing without also replacing the prop shaft! Happily because the stern gland did not leak significantly and he also concluded that it would be OK to refit the external bearing but be prepared to have to replace the whole shaft at some point in the future. No doubt the engine will have to come out too at some point so I'll probably do both together.
I had also previously noticed that one of the bolts holding the rudder shoe in place looked rusty and so needed to check that out. I consulted Chris once again and he recommended that I took the shoe right off to check it out thoroughly. The last thing I wanted was the rudder failing mid Atlantic!
Since the above works I have heard back from Mike the Foundry man that he can cast a new rudder shoe for £45 which is a bargain and I also tracked down Paul of 'OflandandSea' on ebay who can make me a new tiller for around £250 which considering the time involved is also a bargain.
Next job a return match with the propshaft stuffing box and refitting the external bearing on the propshaft and the prop itself. Then perhaps fitting the new transducers for the depth sounder and the speed log. That will require removing the flexible water tank which will be a chore, but it has a leak and needs a good clean so it needs to be done anyway. With luck I'll get that done this coming weekend and then it's 'just' the anode(s) to sort out before re anti-fouling with the replacement Verometal copper mix and then I can get her back in the water. Still loads to do afterwards of course but the prospect of getting some sailing in begins to feel less far fetched than it once did.
Tuesday, 15 April 2014
Bow chainplate installed
On Saturday I finished making up the bow chainplate by drill in out the bolt holes and the pin hole.
Then with Alan's help I managed to install it. Mind you in the process I almost got stuck head first in the anchor locker a few times and the sight of a pair of legs poking out the front of a boat and waving around must have been a strange sight!
Finally I filled the cavity with expanding foam which went bloody everywhere. Goodness knows how long it will take to get it off hands. I frantically taped plastic bags over it all to try and keep the dam stuff in. That green stuff squirting out in the bottom photo is the foam.The original plan consisted of squirting the foam under a plastic bag. It didn't work!
Next weekend I hope to glass it over and reinstall all the metal work and the forestay. Before that though as advised by Kiwi Chris I will need to insert a plastic gasket because the fibreglass resin may dissolve the foam!
Wednesday, 2 April 2014
Chain Plates installed
Still got the bow one to do. Hopefully will get the glassing done this coming weekend and the installation the weekend after
Sunday, 23 March 2014
Chain Plates and Aries
On Saturday Chris came over and helped me prepare for fitting the chain plates (or rather I helped him).
The photos below show where they will go. The gaffer tape covers the holes that we drilled to bolt them through.
It was important to get them to line up with the shrouds which we did by running the leadline down each stay and marking the hull. Then needed to ensure the holes for each of the pins was at the correct height.
The plates themselves needed countersinking and the large countersink bit I had ordered was delivered over the weekend. It was too big for my drill press so on Sunday I went round to Howard's to make use of his workshop facilities once again. He has a heavyweight drill press and the means of clamping objects to it securely and we discovered that was essential given the torque generated by the countersink bit.
Here's Howard in action
It's not quite square so will need some slight adjustment once the gunk behind the pads has set.










































