X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta03.emeryville.ca.mail.comcast.net ([76.96.30.32] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5598163 for flyrotary@lancaironline.net; Wed, 13 Jun 2012 18:27:46 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.32; envelope-from=hoursaway1@comcast.net Received: from omta07.emeryville.ca.mail.comcast.net ([76.96.30.59]) by qmta03.emeryville.ca.mail.comcast.net with comcast id MyRp1j0061GXsucA3yT9qm; Wed, 13 Jun 2012 22:27:09 +0000 Received: from sz0081.ev.mail.comcast.net ([76.96.26.137]) by omta07.emeryville.ca.mail.comcast.net with comcast id MyT91j0092xV6SL8UyT9GG; Wed, 13 Jun 2012 22:27:09 +0000 Date: Wed, 13 Jun 2012 22:27:09 +0000 (UTC) From: hoursaway1@comcast.net To: Rotary motors in aircraft Message-ID: <1321402915.81358.1339626429380.JavaMail.root@sz0081a.emeryville.ca.mail.comcast.net> In-Reply-To: Subject: Re: [FlyRotary] Re: Fuel presure question. MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_81357_660291762.1339626429337" X-Originating-IP: [71.206.108.115] X-Mailer: Zimbra 6.0.13_GA_2944 (ZimbraWebClient - IE8 (Win)/6.0.13_GA_2944) ------=_Part_81357_660291762.1339626429337 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Eng. stops when both are shut off at same time or one after the other, will= check again tonight.=C2=A0=C2=A0 David=20 ----- Original Message ----- From: "Tracy" =20 To: "Rotary motors in aircraft" =20 Sent: Wednesday, June 13, 2012 8:29:41 AM=20 Subject: [FlyRotary] Re: Fuel presure question.=20 Hmmmm... =C2=A0Mine goes up about a pound when I switch on the second pump.= =C2=A0What happens when you turn both off?=20 Tracy=20 Sent from my iPad=20 On Jun 12, 2012, at 7:11 PM, hoursaway1@comcast.net wrote:=20 Question about fuel pressure indications, at fast idle 2200 RPM, fuel press= ure is 42 PSI on EM2, if I switch on the back-up pump with the primary pump= the pressure drops to 35 PSI, can here both pumps running, if I switch off= either pump pressure goes back to 42 PSI.=C2=A0 My system is 13B, stock re= d injectors all four, pressure regulator is stock Mazda on the end of fuel = rail with vacume connection from dynamic chamber.=C2=A0 Thanks,=C2=A0 David= R. Cook=C2=A0 RV6A Rotary.=20 ------=_Part_81357_660291762.1339626429337 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: 7bit

Eng. stops when both are shut off at same time or one after the other, will check again tonight. David

From: "Tracy" <rwstracy@gmail.com>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Wednesday, June 13, 2012 8:29:41 AM
Subject: [FlyRotary] Re: Fuel presure question.

Hmmmm... Mine goes up about a pound when I switch on the second pump. What happens when you turn both off?

Tracy

Sent from my iPad

On Jun 12, 2012, at 7:11 PM, hoursaway1@comcast.net wrote:

Question about fuel pressure indications, at fast idle 2200 RPM, fuel pressure is 42 PSI on EM2, if I switch on the back-up pump with the primary pump the pressure drops to 35 PSI, can here both pumps running, if I switch off either pump pressure goes back to 42 PSI. My system is 13B, stock red injectors all four, pressure regulator is stock Mazda on the end of fuel rail with vacume connection from dynamic chamber. Thanks, David R. Cook RV6A Rotary.

------=_Part_81357_660291762.1339626429337--