X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 14 May 2007 15:56:08 -0400 Message-ID: X-Original-Return-Path: Received: from outbound-mail.nyc.untd.com ([64.136.20.164] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with SMTP id 2043469 for lml@lancaironline.net; Mon, 14 May 2007 10:10:33 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.136.20.164; envelope-from=glong2@netzero.net Received: from your4dacd0ea75 (dialup-4.228.72.106.Dial1.Denver1.Level3.net [4.228.72.106]) by smtp04.nyc.untd.com with SMTP id AABDES5PPAU6MZDA for (sender ); Mon, 14 May 2007 07:09:49 -0700 (PDT) From: "glong2" X-Original-To: "'Lancair Mailing List'" Subject: RE: [LML] Continental Engine fuel Sys. X-Original-Date: Mon, 14 May 2007 08:09:43 -0600 X-Original-Message-ID: <002001c79631$861a4160$e548e404@your4dacd0ea75> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0021_01C795FF.3B7FD160" X-Mailer: Microsoft Office Outlook 11 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 Thread-Index: AceWK+j8RTqMoZ/tTJKbFssgD2UePgABJGhQ In-Reply-To: X-ContentStamp: 11:5:185650848 X-MAIL-INFO:21cacbf3ca5b73b76bf35bea5f2eab971aeadaa31ed3df138e9a3a27fa5ef7eedf7363630a1b5f375a1ac393933bf34aeab7cb6b8e9e9e0b1eae17a76e5fb3 X-UNTD-OriginStamp: QLtLkOW1eqYBwH/v5e7EP/JLtfg1VffTj2LwbSqB8a3hGfsk4CIx/Q== X-UNTD-Peer-Info: 10.140.24.124|smtp04.nyc.untd.com|smtp04.nyc.untd.com|glong2@netzero.net This is a multi-part message in MIME format. ------=_NextPart_000_0021_01C795FF.3B7FD160 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Charlie: I am going to the airport today and will test this and post the results. I am not sure where the manifold valve is but will look in the manuals and find it. Eugene Long Lancair Super ES glong2@netzero.net _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Charlie Kohler Sent: Monday, May 14, 2007 7:29 AM To: lml@lancaironline.net Subject: [LML] Continental Engine fuel Sys. The thread regarding water/vent plugging issue has missed a potential cause of this problem. Having both Left/Right tank selections responding exactly alike would lead me to a common cause. One is-- a slit/crack/porosity in the diaphragm in the fuel manifold valve on top of the engine. If one exists --the engine driven pump will overcome it initially-- but then as leak (crack) enlarges-- it'll require electric pump lo-- then high to keep the engine running. This might be on one flight--or ten. But eventually the diaphragm will not contain the pressure to overcome the spring, closing the valve and the engine will quit. To test--Put a bucket under sniffle valve-- Remove the drain line (rubber hose on bottom of manifold valve) and turn pump on high mixture and throttle in. ANY fuel coming out drain is serious and the valve must be overhauled. Engines stored for long periods are really susceptible to this problem. Charlie K. ------=_NextPart_000_0021_01C795FF.3B7FD160 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Charlie:

I am going to the airport = today and will test this and post the results. I am not sure where the manifold = valve is but will look in the manuals and find it.

Eugene Long

Lancair Super ES

glong2@netzero.net

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Charlie Kohler
Sent: Monday, May 14, = 2007 7:29 AM
To: = lml@lancaironline.net
Subject: [LML] = Continental Engine fuel Sys.

The thread regarding water/vent plugging issue has = missed a potential cause of this problem. Having both Left/Right tank = selections responding exactly alike would lead me to a common cause. One = is-- a slit/crack/porosity in the diaphragm in the fuel manifold valve on = top of the engine.

If one exists --the engine driven pump will = overcome it initially-- but then as leak (crack) enlarges-- it'll require = electric pump lo-- then high to keep the engine running. This might be on one = flight--or ten. But eventually the diaphragm will not contain the pressure to = overcome the spring, closing the valve and the engine will = quit.

To test--Put a bucket under sniffle valve-- Remove = the drain line (rubber hose on bottom of manifold valve) and turn = pump

on high mixture and throttle in. ANY fuel coming = out drain is serious and the valve must be overhauled. =

Engines stored for long periods are really = susceptible to this problem.

Charlie K.

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