I think that the idea is to shut down the pump(s) with the engine running. The injectors will continue to do their thing, & the engine quits when pressure drops too low to flow through the open injectors.

Charlie

On 07/03/2011 02:28 PM, Kelly Troyer wrote:

No !!...........The check valve is located in the inlet to the pump and will hold regulated pressure

indefinately or until relieved by leaky injectors or the afore mentioned bypass sysrem.........

 

Kelly Troyer
"DYKE DELTA JD2" (Eventually)

"13B ROTARY"_ Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil Manifold

"TURBONETICS"_TO4E50 Turbo

From: Ernest Christley <echristley@att.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Sunday, July 3, 2011 2:15 PM
Subject: [FlyRotary] Re: Leaking injectors?

On 07/02/2011 09:52 AM, Kelly Troyer wrote:

Ernest,

    Your EFI fuel pumps have a check valve in them and will hold regulated pressure

for a long time or until leaky injectors relieve this pressure..........Short of replacing

the injectors the fix is to put a pressure relief orifice from the fuel pressure line  to

the fuel return line...

Shouldn't shutting down by cutting power to the fuel pump relieve the pressure, though?