Many thanks for the replies, Pete, Duncan and Nigel.
I was unaware of this knowledge about Benwick, but I must say I have never
seen a drop in fuel pressure (sample point down stream of Benwick) at full
throttle (mine's the 912). Where can I buy a Flowscan sensor and are they
directly interchangeable, or do I have to throw the Benwick unit away?
Regards,
William
----- Original Message -----
From: "nigel charles" <nigelcharles@tiscali.co.uk>
Subject: Re: Europa-List: Benwick FM 1053 Fuel Flow Computer
<nigelcharles@tiscali.co.uk>
>
> >Don't do it!
> Put a proper flow sensor on; one that has far less risk of constriction
and
> blockage. ie a Flowscan sensor.<
>
> I totally agree with Duncan. The Floscan is far superior. Paddy found that
> it was impossible to satisfy the fuel flow test with the restriction of
the
> Benwick sender. If you take one apart you will be horrified to see how
small
> the aperture is. Conversely the Floscan causes minimal flow restriction.
If
> my memory is correct the pressure loss @15gall/hr and the impellor stalled
> is only 0.15psi. As it is suitable for much higher fuel flows restriction
> should not be an issue. In terms of accuracy Paddy and I are both
recording
> figures of less than 0.1% which is well within their quoted accuracy of
2%.
>
> Nigel
>
>
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