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?