X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta07.emeryville.ca.mail.comcast.net ([76.96.30.64] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5041786 for flyrotary@lancaironline.net; Mon, 04 Jul 2011 07:13:01 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.64; envelope-from=wschertz@comcast.net Received: from omta23.emeryville.ca.mail.comcast.net ([76.96.30.90]) by qmta07.emeryville.ca.mail.comcast.net with comcast id 3nBo1h0021wfjNsA7nCPik; Mon, 04 Jul 2011 11:12:23 +0000 Received: from WschertzPC ([71.57.77.95]) by omta23.emeryville.ca.mail.comcast.net with comcast id 3nCg1h00L23NHuF8jnChPx; Mon, 04 Jul 2011 11:12:42 +0000 Message-ID: From: "Bill Schertz" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: Leaking injectors? Date: Mon, 4 Jul 2011 06:12:18 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B7_01CC3A11.53C27650" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3508.1109 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3508.1109 This is a multi-part message in MIME format. ------=_NextPart_000_00B7_01CC3A11.53C27650 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Ernest, if you shut off power to the pump, while the engine is running, = the injectors drain away the residual pressure just fine. Bill Schertz KIS Cruiser #4045 N343BS Phase one testing Completed From: Kelly Troyer=20 Sent: Sunday, July 03, 2011 2:28 PM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: Leaking injectors? 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......... =20 Kelly Troyer "DYKE DELTA JD2" (Eventually) "13B ROTARY"_ Engine "RWS"_RD1C/EC2/EM2 "MISTRAL"_Backplate/Oil Manifold "TURBONETICS"_TO4E50 Turbo From: Ernest Christley To: Rotary motors in aircraft Sent: Sunday, July 3, 2011 2:15 PM Subject: [FlyRotary] Re: Leaking injectors? On 07/02/2011 09:52 AM, Kelly Troyer wrote:=20 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=20 the fuel return line... Shouldn't shutting down by cutting power to the fuel pump relieve the = pressure, though? ------=_NextPart_000_00B7_01CC3A11.53C27650 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Ernest, if you shut off power to the pump, while the engine is = running, the=20 injectors drain away the residual pressure just fine.
 
Bill=20 Schertz
KIS Cruiser #4045
N343BS
Phase one testing = Completed
 
Sent: Sunday, July 03, 2011 2:28 PM
Subject: [FlyRotary] Re: Leaking = injectors?
 
No = !!...........The check=20 valve is located in the inlet to the pump and will hold regulated = pressure
indefinately or until relieved by leaky = injectors or=20 the afore mentioned bypass sysrem.........
 
Kelly Troyer
"DYKE DELTA JD2" (Eventually)
"13B ROTARY"_ = Engine
"RWS"_RD1C/EC2/EM2
"MISTRAL"_Backplate/Oil=20 Manifold
"TURBONETICS"_TO4E50 Turbo
 
From: Ernest Christley=20 <echristley@att.net>
To:=20 Rotary motors in aircraft = <flyrotary@lancaironline.net>
Sent: Sunday, July 3, 2011 2:15=20 PM
Subject: = [FlyRotary] Re:=20 Leaking injectors?

On 07/02/2011 09:52 AM, Kelly Troyer wrote:=20
Ernest,
    Your EFI fuel pumps have a = check valve=20 in them and will hold regulated pressure
for a long time or until leaky injectors relieve this=20 pressure..........Short of replacing<= /DIV>
the injectors the fix is to put a pressure relief orifice = from the=20 fuel pressure line to
the fuel return=20 line...

Shouldn't shutting down = by=20 cutting power to the fuel pump relieve the pressure,=20 though?


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