Bob,
I have the Rand header tank and I Installed a 1/4" aluminum tube at the very
top of tank pointing forward and a slight slope towards the rear of the tank
where it exits grouped with the filler tube and the fuel level sender wires. At
that point I connected a clear fuel line tube and ran it towards the passenger
side with constant slope to under the shlef and to an exit point. At the exit
point I bent another piece of the 1/4" aluminum tube going through the fuselage
side about 2" behind the firewall just below th shelf and the open end of the
tube faces straight forward which I flared the end open to scoop up some air
and in some effect pressurizing the fuel tank. It's never even been a quesstion
with venting execpt for slow fuel filling for the last couple of gallons of
fuel. I have on several occasions while transfering fuel from wings to header
tank forgot and pumped a couple gallons overboard. I have a fuel pressure
indicator and it always inflight indicates more pressure than is available by
gravity.
Joe Horton
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