I have dual electric Facet pumps in parallel with a Matronics Fuel Scan DX
flow meter.
There is a return flow line back to the tank so it requires a fuel
transducer going both
ways, one to add and the other to subtract. If I run both pumps with the
engine off
and the return transducer unplugged I get over 11 gph on the flow meter. Of
course
it shows 0 with both transducers connected. As long as I'm showing 11 gph
or more,
I would think that shows good health on the fuel system, along with the fuel
pressure
gauge.
Glenn C
>From: <rparigor@suffolk.lib.ny.us>
>Reply-To: europa-list@matronics.com
>To: <europa-list@matronics.com>
>Subject: Europa-List: Anyone monitoring 914 return flow?
>Date: Thu, 22 Dec 2005 15:56:42 -0000
>
>
>Curious, is anyone monitoring return flow on a 914?
>
>To monitor net fuel usage we need to subtract what is going back to tank
>from what is going into the fuel pressure regulator.
>
>Net fuel usage is a useful thing to be able to track.
>
>Seems to me if one were to have monitor and sensors already, if a selector
>switch were installed that switched between net and return, return could
>be checked once in a while which off the cuff sounds useful??
>
>With clean filter/s and good strong pump and no restrictions one would
>know what is normal return flow. Seems to me a trend down could be
>followed to catch poor flow before you experienced vapor lock or low
>differential pressure.
>
>Thx.
>Ron Parigoris
>
>
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