After some consideration I decided that as there was already a hole in the forward end of the tank about one inch from the bottom I would utilise this for the fuel supply to the engine by fitting a tank connector together with a ball type isolating valve and a hose tail. These tanks are normally arranged with a fuel outlet at the top of the tank with an internal pipe as this pipe extends to the very bottom of the tank I decided that I would use this as the water drain by connecting a vacuum pump, when required, of the type used for sucking out engine oil.
Fuel supply to engine
Over the weekend I had modified the return fuel connection by silver soldering a purpose made hose barb to the end of the copper pipe as I am not keen on connecting hose directly to plain copper pipe with jubilee clips, yes I know lots of people do it and don't have any problems. Also I could then use the same size fuel hose that I had used for the engine supply for the return to the tank. The right angled hose tail was then fitted to the tank inspection plate and the fuel return hose connected up.
Hose tail silver soldered to the fuel return
Hose connected
Fuel return connected to tank
The hoses to connect the tank to the deck filling point and the fuel tank vent are still to be fitted once I have the required hose but it will still be possible to put fuel into the tank and the cap is fitted with a vent so that I will still be able to test run the engine. Also I have fitted a simple mechanical fuel gauge to the tank I will probably change this for a remote reading electric gauge in the future.
I have turned down the hose tail for the engine sea water pump to take a 1" hose but this has not been connected yet as I will use a temporary hose into a bucket for test running the engine.
When I fitted the new engine exhaust elbow I had to remove the copper sea water pipe which ran from the oil cooler to the cooling passage on the gearbox as there was not room for both as can be seen in the photograph below the sea water connection from the oil cooler is on the left just above the red teleflex throttle cable. I had been thinking of using a flexible hose but after some thought I found that I could probably modify the existing copper pipe one end of which was somewhat corroded although the rest of the pipe appeared to be sound .
The new exhaust connection
The corroded end of the sea water pipe
By cutting off the corroded end and the addition of a couple of copper elbows I found that I could divert the pipe around the exhaust connection the use of a capillary type fitting effectively forms a hose barb and will make the flexible hose connection to the oil cooler a much more secure fit, the original end of the pipe was finished in a similar fashion. The pipe required the attention of a file as it was of a slightly larger diameter than standard 28mm pipe. The modified pipe is in the workshop waiting to be soldered together it will have to wait until next week as I am going sailing this weekend Conyer round to Ramsgate and back on a friends boat.
Modified pipe awaiting soldering
The final connection to be made is the sea water hose from the engine heat exchanger via an anti siphon device to the sea water injection point on the exhaust connection the connection on the exhaust requires 32mm hose while the connection on the heat exchanger is a bit less and on the first attempt the jubilee clip would not compress the hose sufficiently to give a tight fit I will investigate further next week.
Finally to finish up today I started the pipework for the shower drain pump this will drain via an up and over loop into the waste from the heads wash hand basin which will also connect to the galley sink waste.
Shower drain pump
Shower drain pump strum box.
The bilge under the shower still requires a good clean and a coat of paint
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