Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Mon, 28 Feb 2005 15:56:33 -0500 Message-ID: X-Original-Return-Path: Received: from [24.25.9.103] (HELO ms-smtp-04-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 762776 for lml@lancaironline.net; Mon, 28 Feb 2005 11:23:52 -0500 Received-SPF: none receiver=logan.com; client-ip=24.25.9.103; envelope-from=hapgoodm94@alum.darden.edu Received: from HP780N (cpe-065-184-084-150.nc.rr.com [65.184.84.150]) by ms-smtp-04-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j1SGN4Ci017035 for ; Mon, 28 Feb 2005 11:23:05 -0500 (EST) From: "Matt Hapgood" X-Original-To: "Lancair Mailing List" Subject: RE: [LML] Re: N420HP Fuel Selector, Fuel Return, "Fuel Log" X-Original-Date: Mon, 28 Feb 2005 11:23:12 -0500 X-Original-Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_02F0_01C51D87.E3D25510" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Importance: Normal In-Reply-To: X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_02F0_01C51D87.E3D25510 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Re: N420HP Fuel Selector, Fuel Return, "Fuel Log"Jeff and anyone else out there, Please be careful here. I almost killed myself because of a setup IDENTICAL to this - including the brand of fuel log. This is a BAD BAD BAD idea. That fuel log is too small. Fuel that is returned to that small of a tank may get heated significantly - especially in situations where you are idling on a hot day. The engine will only consume a small amount of fuel, the rest is compressed (heated) and pushed through a very hot under cowl environment. The fuel WILL get hot. Then one particularly hot day, as happened to me, you may end up with air bubbles, vapor lock, or something similar, on TAKEOFF. It took weeks, and a second similar event, to diagnose the problem. Put your hand on that fuel log on a hot day after waiting 20 minutes for departure. You'll be surprised. Better surprised than dead. Takeoff isn't a good time to lose engine power. Please don't do this. Recirculate into a much larger tank. Matt -----Original Message----- From: Lancair Mailing List [mailto:lml@lancaironline.net]On Behalf Of Jeffrey Liegner, MD Sent: Monday, February 28, 2005 10:12 AM To: Lancair Mailing List Subject: [LML] Re: N420HP Fuel Selector, Fuel Return, "Fuel Log" to: "SEMLOH Aviation Services Corp" Suggestion: Regarding the fuel selector and single tank return, an alternate fix would be to insert a "fuel log" into the return between the fuel selector and the engine, ------=_NextPart_000_02F0_01C51D87.E3D25510 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Re: N420HP Fuel Selector, Fuel Return, "Fuel = Log"
Jeff=20 and anyone else out there,
 
Please=20 be careful here.  I almost killed myself because of a setup = IDENTICAL to=20 this - including the brand of fuel log. 
 
This=20 is a BAD BAD BAD idea.  That fuel log is too small.  Fuel that = is=20 returned to that small of a tank may get heated significantly - = especially in=20 situations where you are idling on a hot day.  The engine will only = consume=20 a small amount of fuel, the rest is compressed (heated) and pushed = through a=20 very hot under cowl environment.  The fuel WILL get hot.  =
 
Then=20 one particularly hot day, as happened to me, you may end up with air = bubbles,=20 vapor lock, or something similar, on TAKEOFF.  It took weeks, and a = second similar event, to diagnose the problem.  Put your hand = on that=20 fuel log on a hot day after waiting 20 minutes for departure.  = You'll be=20 surprised.  Better surprised than dead.  Takeoff isn't a good = time to=20 lose engine power.
 
Please=20 don't do this.  Recirculate into a much larger tank. =20

Matt
 
 
-----Original Message-----
From: Lancair Mailing = List=20 [mailto:lml@lancaironline.net]On Behalf Of Jeffrey Liegner,=20 MD
Sent: Monday, February 28, 2005 10:12 AM
To: = Lancair=20 Mailing List
Subject: [LML] Re: N420HP Fuel Selector, Fuel = Return,=20 "Fuel Log"

to:  "SEMLOH Aviation Services Corp" = <semlohav@juno.com>

Suggestion:

Regarding the fuel selector and single tank return, an alternate = fix=20 would be to insert a "fuel log" into the return between the fuel = selector and=20 the engine,
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