X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Fri, 06 Jul 2012 00:36:37 -0400 Message-ID: X-Original-Return-Path: Received: from db3outboundpool.messaging.microsoft.com ([213.199.154.141] verified) by logan.com (CommuniGate Pro SMTP 5.4.6) with ESMTPS id 5639864 for lml@lancaironline.net; Thu, 05 Jul 2012 22:40:31 -0400 Received-SPF: pass receiver=logan.com; client-ip=213.199.154.141; envelope-from=rpastusek@htii.com Received: from mail74-db3-R.bigfish.com (10.3.81.232) by DB3EHSOBE003.bigfish.com (10.3.84.23) with Microsoft SMTP Server id 14.1.225.23; Fri, 6 Jul 2012 02:37:46 +0000 Received: from mail74-db3 (localhost [127.0.0.1]) by mail74-db3-R.bigfish.com (Postfix) with ESMTP id CE1F28031C for ; Fri, 6 Jul 2012 02:37:46 +0000 (UTC) X-Forefront-Antispam-Report: CIP:157.56.236.133;KIP:(null);UIP:(null);IPV:NLI;H:BY2PRD0710HT002.namprd07.prod.outlook.com;RD:none;EFVD:NLI X-SpamScore: -1 X-BigFish: PS-1(zz9371Ic85fhzz1202hzz8275ch8275bh8275dhz31h2a8h668h839hd25hf0ah107ah) Received-SPF: softfail (mail74-db3: transitioning domain of htii.com does not designate 157.56.236.133 as permitted sender) client-ip=157.56.236.133; envelope-from=rpastusek@htii.com; helo=BY2PRD0710HT002.namprd07.prod.outlook.com ;.outlook.com ; Received: from mail74-db3 (localhost.localdomain [127.0.0.1]) by mail74-db3 (MessageSwitch) id 1341542263556614_28672; Fri, 6 Jul 2012 02:37:43 +0000 (UTC) Received: from DB3EHSMHS001.bigfish.com (unknown [10.3.81.254]) by mail74-db3.bigfish.com (Postfix) with ESMTP id 85D9A480043 for ; Fri, 6 Jul 2012 02:37:43 +0000 (UTC) Received: from BY2PRD0710HT002.namprd07.prod.outlook.com (157.56.236.133) by DB3EHSMHS001.bigfish.com (10.3.87.101) with Microsoft SMTP Server (TLS) id 14.1.225.23; Fri, 6 Jul 2012 02:37:43 +0000 Received: from BY2PRD0710MB366.namprd07.prod.outlook.com ([169.254.3.109]) by BY2PRD0710HT002.namprd07.prod.outlook.com ([10.255.86.37]) with mapi id 14.16.0164.004; Fri, 6 Jul 2012 02:39:48 +0000 From: Robert R Pastusek X-Original-To: Lancair Mailing List Subject: RE: [LML] Fuel Pressure Problems Thread-Topic: [LML] Fuel Pressure Problems Thread-Index: AQHNWuanZ04IfjleC0ew46C4ue+2oZcbhoIA X-Original-Date: Fri, 6 Jul 2012 02:39:47 +0000 X-Original-Message-ID: <41361035E6613244A377D5AC3BF5EFDD176FD25D@BY2PRD0710MB366.namprd07.prod.outlook.com> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [65.202.241.130] Content-Type: multipart/alternative; boundary="_000_41361035E6613244A377D5AC3BF5EFDD176FD25DBY2PRD0710MB366_" MIME-Version: 1.0 X-Original-Return-Path: rpastusek@htii.com X-OriginatorOrg: htii.com --_000_41361035E6613244A377D5AC3BF5EFDD176FD25DBY2PRD0710MB366_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Alan, How about a blockage in the fuel system? I mention this because we just fou= nd a disintegrated fuel flow impeller (a wee tiny thing to start with) that= was blocking the fuel line on a TSIO-550. The owner says the fuel flow was= "indicating" even when the engine would barely run, so apparently there wa= s enough impeller in the sensor to at least give a reading, but most of it = was down-stream in the fuel system. (the engine did not run well at all...) Bob From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Alan= Crawford Sent: Thursday, July 05, 2012 3:45 PM To: lml@lancaironline.net Subject: [LML] Fuel Pressure Problems Just started having a change in fuel pressure at cruise. I have a Legacy .= .. 550N ... been cruising 40 to 60 degrees lean of peak with no problem, wi= th fuel pressure above 8.2 psi. Depending on altitude 2500 rpm - 2300 rpm .= .. 11.5 to 11.8 gph ... The last few flights I can not get 40 degrees lean of peak at any altitude = without the fuel pressure dropping below 8.0 psi ... even if I turn on the = fuel pump to low =3D 9, 500 - 11,500 - 12,500 ???? any ideas on what is going on???? Takeoff fuel pressure is 28.0 psi .... Thanks ... Alan Crawford Lake Buchanan, Texas Lancair Legacy Life is NOT a journey to the grave with the intention of arriving safely in a pretty and well preserved body, BUT rather to skid in broadside, thoroughly used up, totally worn out, and proclaiming, "WOW, WHAT A RIDE!!!" --_000_41361035E6613244A377D5AC3BF5EFDD176FD25DBY2PRD0710MB366_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Alan,

How about a blockage in the fuel system? I mention = this because we just found a disintegrated fuel flow impeller (a wee tiny thing to start with) that was blocking the fuel line on a TSIO-550. T= he owner says the fuel flow was “indicating” even when the engi= ne would barely run, so apparently there was enough impeller in the sensor = to at least give a reading, but most of it was down-stream in the fuel system. (the engine did not run well at all…= )

 

Bob

 

From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Alan Crawf= ord
Sent: Thursday, July 05, 2012 3:45 PM
To: lml@lancaironline.net
Subject: [LML] Fuel Pressure Problems

 

Just started having a change in fuel pressure at cruise.  = I have a Legacy ... 550N ... been cruising 40 to 60 degrees lean of peak with no problem, with fuel pressure above 8.2 psi. Depending on altitude 2= 500 rpm - 2300 rpm ... 11.5 to 11.8 gph ... =

 

The last few flights I can not get 40 degrees lean of peak= at any altitude without the fuel pressure dropping below 8.0 psi ... even if I turn on the fuel pump to low =3D 9, 500 - 11,500 - 12,500 ????

 

any ideas on what is going on???? Takeoff fuel pressure is=  28.0 psi ....  

 

Thanks ... 

Alan Crawford

Lake Buchanan, Texas =

Lancair Legacy 

 

 

Life is NOT a journey to the grave with the intention of arrivi= ng safely
  in a pretty and well preserved body, BUT rather to skid in broadside= ,
           thoroughly use= d up, totally worn out, and proclaiming,
            &nb= sp;            =    "WOW, WHAT A RIDE!!!"

--_000_41361035E6613244A377D5AC3BF5EFDD176FD25DBY2PRD0710MB366_--