Currently I have a poorly installed diesel tank and since it is behind the engine hard up against the cockpit sole it is staying there.
Previously it took sometime to bleed the fuel system and then I noticed the return from the engine was going back to the filter so I moved it from here and tee-d it in to the vent for the tank. This has made bleeding much quicker but now when I fill up residual diesel is being pushed out of the vent, this has caused problems a couple of times as I have assumed the tank has been filled when in fact it has not! (At least I think that is what is happening).
So today the brain wave was to move the vent in to the side of the deck filler, below the deck but it has occurred to me this will be fine when running the engine but could cause problems when filling the tank.
So the question is if I fill slowly will the tank vent OK from the filler when filling up? The tank holds about either 60 or 80 Litres (can not remember sat here) with a good size filler pipe about 40mm internal diameter. The vent pipe is 3/8 reinforced plastic.The alternative is to take the return up to the filler but then the pump will be lifting it at least 3 to 4 feet.
The deck filler is old fashioned chromed bronze and I was going to drill a hole and tap it for a 3/8 BSP nipple and attach the 3/8 plastic tube. The tank is stainless steel.
Other ideas welcome.
Writing this: I guess the only solution is to move the breather pipe from the stern up higher, somewhere on the pushpit I suppose....As I say ideas welcome.
Further thinking about it whilst watching Frannies feet with daughter: Put a tee on the nipple then take the vent pipe from the tank to the tee and then the other side to the vent in the transom. I think that will work.