Mike,
I may be wrong, but I understand it is a key requirement of sight gauges
that a leak in the gauge cannot feed air to the engine - as the pump will
suck air in preference to fuel.
You need to take the bottom end of the gauge off some sort of sump separate
---From the fuel feed.
I suggest you take a look at Graham Singleton's mod 10823 (for tank fittings
that take rigid Al lines) to see what he's done there, also the factory fuel
gauge mod paperwork (on their Web Site) gives an alternative routing that
you could take ideas from.
I'm running my gauge up the baggage bay, too - I don't want to see it in
flight - but details aren't finalised yet.
Regards,
Jeremy
Jeremy Davey
Europa Monowheel 537M G-EZZA
Tail done
Standard XS wings awaiting mods and closing
CM ready for installation in fuse (with airbrakes fittings)
1100 build hours to date
Intended fit:
Rotax 914 turbo, Airmaster CS fully-feathering prop
Lots of lights, buttons, switches, gizmos, and alarms
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Mike
Subject: Europa-List: XS Fuel System Mods.
Andy,
I seem to recollect you saying some time ago that you were planning to
introduce a mod to reposition the fuel sight guage and the fuel vents. My
proposal follows.
I would like to T the line from the port fuel outlet to the port fuel
drain where it emerges from the tunnel and feed it across the well of the
baggage compartment and up the stb wall, venting into the fuel filler neck.
There would be a further vent line from the filler neck to the lower
fuselage. The tube is protected throughout its run by enclosing it in square
section conduit which is bent to follow the fuselage profile and is left
uncovered where it runs up from the floor to the fuselage joint line (this
is the guage proper). It will be easy to fit and access for inspection.
Fuel contents could be checked before and during flight providing a
backup to the Europa fuel guage mod. already fitted.
What do you think? Can you see any reason why this change would not be
acceptable? In particular, can the tank also be vented into the filler neck?
I would be grateful to have your comments prior to submitting this mod
to the PFA.
I am copying to the forum as I'm sure there will be others who will be
interested.
Regards
Mike
XS #440
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