|
Message
Turning on the fuel pump for a little while is probably
also a great way to mix any oil at the bottom of the tank.
Dave Leonard
That works
great for the right tank, but the left tank only transfers to the right, and
doesn't have a return.
Speaking of
fuel transfer, my system is like Tracy's, in that I feed from only one tank, and
use the other to transfer to the feed tank. The transfer pump is a
lowly Facet 5-6 psi pump. The feed tank has two high pressure EFI pumps,
and one AN-6 return line from the regulator. My transfer pump Tees into
the return line from the regulator.
A while
back, someone asked if the return from the regulator would overpower the Facet
pump, and keep fuel from being transferred to the feed tank. The answer is
that it can be a problem if you're running both EFI pumps. My normal
flight mode is to run both EFI pumps at all times. I test them
individually on pre-flight, and would turn one off if I lost an alternator, but
normally, they stay on. I found that this causes so much flow in the
return line that it does overpower the Facet pump. I bet I could
leave the Facet on all the time, and it MIGHT transfer enough to
make up for what I burn. In other
words, the transfer is very slow. Turning off one of the EFI pumps
improves this considerably. If I were doing this over, I'd have separate
fittings for return fuel from the regulator, and for transfer fuel from the
non-feed tank.
Cheers,
Rusty (fresh out of
comments)
|