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Date: Wed, 17 Mar 2004 05:13:06 -0800
From: Perry Mick <pjmick@mail.viclink.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] mainfold hose
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>
>
>     One more question, please.  I just finished hooking up two toggle
>switches to allow me to turn the high pressure fuel pumps on and off.
>Recently, there have been a few posts recommending turning the fuel pump off
>prior to engine shutdown to eliminate those few drops of fuel in the
>throttlebody.  Do you just turn the pumps off for a few seconds and then
>turn off the ignition, or just turn off the pumps and let the engine die
>from fuel exhaustion, similar to pulling the mixture lever to shut down a
>Lycoming?   Inquiring mind wants to know.  Thanks in advance for all replies
>and advice, as ususal.   Paul Conner, 13b powered SQ2000, engine running.
>
>
>  
>
Paul, I always shut off the engine by pulling the circuit breakers to both fuel pumps. The engine will die almost immediately after losing the high pressure in the fuel rails.

If you are flying and running only one h.p. fuel pump, and that pump fails, the engine will become silent only milliseconds later! 

Perry Mick
http://www.ductedfan.com