Bill Freeman wrote:
Jeff asked --
So Bill, for those of us who haven't built a LE, how's it go?
Jeff Spitzer
The Long EZ has two wing (actually strake) tanks with sight guages
which are connected to a selector valve located forward between
the pilots knees on the floor. The outlet of the selector runs to
the gascolator low on the firewall, then to the mechanical pump on
the engine, then to the electric fuel pump (in my case) below the
mech pump but above the gascolator, also on the firewall, and
then to the carb. the electric fuel pump is a backup, used during
takeoff and initial climb, and then during landing or any low
altitude work where the time to respond to a mech pump failure
would be short. Watching the fuel pressure in at TO/climb power is
very useful, read on for an explanation.
I have a fuel flow meter which is between the selector valve and the
gascolator - probably a mistake since it has been the cause of two
lower than normal fuel pressure events as bits of junk have collected
in the 1/8" throat of the sender. No actual engine misbehavior, but
have seen lower than desired fuel pressure at full power climb that
was fized by the boost pump or power reduction. Easy to troubleshoot
with an accurate fuel pressure guage looking at the carb inlet. If I were
doing it again, I'd put the flow sensor downstream of the gascolator.
Each tank is individually vented and has a stainless steel inlet screen
covering a sump of about 1 pint capacity (the blister in the "armpit"
between the strake and fuselage sides).
Anything I missed?
Bill
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