Water Tanks & Fuel Tanks

 

When you are doing a big project there are a thousand and one items that you know you have to do. Sometimes it’s difficult to know which one to do next. We were supposed to line up the engine this week but one of the stern bearings has a problem and the new shaft will not turn freely in the bearing so we have shipped both bearings and a length of shaft off to the machinist, so what to do instead.

There are things that you can do but others need to be part of a pattern you can not do item E unless items A,B,D and S have been started and that is where we are at this very moment. So we need fuel tanks and water tanks so these next few days we are going to look at building those.

There will be more than one fuel tank , we will have a storage tank and also a smaller day tank which we will pump from one to the other . As for water probable 2 tanks and 1 paraffin kerosene tank for cooking lighting and heating, old fashioned but I like that sort of thing.

We have two compartments under the coppit sole that I intend to use for two of these tanks.

Our first job is to give the area a good sealing coat of epoxy, we will then cut out some ply to fit this area (ie the sides and bottom of the tank) these panels will get coated with epoxy then given 4 layers of 450 cloth and cured in our hot house These will then be glued to the walls of the two voids we have under the sole we will then seal the joints with  a thickened epoxy and then put several layers of tape over each joint before  a final paint out with epoxy.

The compressor will be used to feed outside air to me whilst I am doing this as both the products I will be using are not the nicest in the world to be using, but infinitely better than most other products out there.

We shall use MAS Fuel and MAS portable water.

Fuel can be purchased from the following address

https://www.epoxy.ltd/shop/epoxy-resins/fuel-tank-build-repair-epoxy/

Blank board

blank board was cut from 18mm marine ply this was sanded with p 40 grade sand paper

Once this was blown clean and all dust removed, we mixed the fuel epoxy this is a bit smelly and we  made sure we had thick gloves and a mask that covered the face and had a charcoal filter in it.

MAS FUEL is mixed by weight only (call 07904446306 for mix ratio)

Once we have the mixture ready , we spread the mix over the baseboard, we use an old credit card we then lay the cloth on top and using a dry metal roller press the cloth onto the base board.

 

Once this is pressed all over the board we apply another coat of the fuel resin hardener mix again spreading with  a credit card, once we have a thin coverage we use a hot air gun and a metal roller to  completely impregnate the cloth with the resin. once this is done we lay on another layer of cloth, this is again pressed in using a dry metal roller. another application of the resin hardener fuel mix is spread the roller and heat gun is used again. It is very important to remove any air pockets the hot gun will help with this.

A final coat of cloth and epoxy is applied in the same way, any spare epoxy is poured on the final layer and spread with the credit card this will fill any weave in the cloth.

Boards clothed and resined

Fuel tank boards clothed and resined

All boards are covered in 450 bi axle cloth with resin hardener mix . three (3) layers in total are used.

Once touch dry these are taken to the oven and kept warm about 25 deg C  for 48 hours this is not necessary but we like to accelerate the cure as much as we can.

 

The next section will be on the clean up of these panels and there instillation