Fuel return line....

castnet · Member

Fuel return line....

Stanley · Guru

In some installations this is impossible as the tank is in the keel. I suggest that you still plumb in a loop to trap some fuel in the return line before the line connects to the tank.

castnet · Member

Ok..so the important thing is to get the loop in and connect to the tank....

Also the Beta 25 calls out a fuel line of 8mm OD...what is the ID supposed to be??

Thanks

Stanley · Guru

8mm is 5/16"

castnet · Member

Thank you but my question is.....

Stanley · Guru

Use 5/16" ID fuel hose. This will fit on the fittings on the engine.

castnet · Member

OK if you say so...never heard of an OD being the same as an ID...must be a UK thing....thanks for the reply

NeilMcCubbin · Veteran Member

RE: Fuel return line....ID vs OD

castnet · Member

Fuel return line....

Farron · Senior Member

The Beta manual references the solid copper line that is used in the UK and much of Europe. I.E, 8mm OD line that uses "olives" or what in the USA are termed ferrules to effect a seal.

The engines that Beta Marine US imports into the USA, are all fit with hose barbs that accept standard rubber fuel line with a 5/16" ID. Stainless hose clamps effect the seal.

castnet · Member

Thanks for clearing that up.............

LB-PDX · Member

Just finished the install of a new Beta 25. That "almost 5/16 inch" fitting can be real challenging to mate up to. I had to grind off the barbs on a brass hose connector to get it slim enough to mate with great indignity onto the fuel return short hose on the engine.
8mm is close, but not really close as it otter be.
:)

On the positive side, we have not yet discovered any Whitworth bolts on the engine...

And, praise be, the raw water pump fitting is.... US !

Also, are stock fuel return fitting at the tank is on the top. Seems logical, but I might missing something. (?)

-- Edited by LB-PDX on Saturday 30th of June 2018 12:05:18 AM