Glenn,
Some years ago we had a similar problem. In those days the fuel gauge was
tee'd off the line to the engine, and when the fuel level dropped to the
point where the gauge showed nearly empty air got into the line, caused the
engine to fail, me to force land and considerable embarrassment!
Subsequent investigation showed that the flow of fuel past the tee caused a
drop in pressure sufficient to show several gallons less in the gauge than
the true quntity. The error increases with rate of fuel flow, and hence is
only apparent when the engine is producing significant power.
I mentioned this in case you may have your gauge connected to the engine
supply line rather than a static outlet from the tank.
Regards,
Roger
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com]On Behalf Of GLENN
CROWDER
Sent: 30 September 2006 5:21 pm
Subject: Re: Europa-List: Monowheel sight gauge
I have routed my sight gauge identically and it works great on the ground,
but
in the air the fuel goes down in the sight gauge by about 3-4 gal. If I
route the
vent into my fuel return line at the top of the tank instead of the fuel
tank breather
tube, I get the same results so the sight guage is pretty worthless while
flying.
Glenn
>From: "josok" <josok-e@ukolo.fi>
>Reply-To: europa-list@matronics.com
>To: europa-list@matronics.com
>Subject: Re: Europa-List: Monowheel sight gauge
>Date: Sat, 30 Sep 2006 13:30:46 +0300
>
>
>Hi Ron,
>
>I decided to route the tube up the seatback, back in the seatback over the
>tank, and up to the breather tube. The reason is that i will be able to see
>the fuel level while tanking. The breather tube is connected to the top of
>the filler and has it's opening behind the flap extension. You will get the
>idea of the latter from the attached picture, where you see the vent
>system. This is one of the good ideas of Graham Singleton. I am still
>thinking of adding a one way valve there opening in the cockpit, to have a
>second vent in case the primary one gets blocked.
>
>Kind Regards,
>
>Jos Okhuijsen
>
>
>-------------------- m2f --------------------
>
>Visit - www.EuropaOwners.org
>http://www.europaowners.org/viewtopic.php?p=12828#12828
>
>-------------------- m2f --------------------
>
>
>Attachments:
>http://www.europaowners.org//zfiles/img_2454_459.jpg
>
>
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