X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 24 Aug 2009 22:25:11 -0400 Message-ID: X-Original-Return-Path: Received: from blu0-omc3-s31.blu0.hotmail.com ([65.55.116.106] verified) by logan.com (CommuniGate Pro SMTP 5.2.16) with ESMTP id 3823316 for lml@lancaironline.net; Mon, 24 Aug 2009 20:02:35 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.55.116.106; envelope-from=scottekeighan@sympatico.ca Received: from BLU0-SMTP36 ([65.55.116.72]) by blu0-omc3-s31.blu0.hotmail.com with Microsoft SMTPSVC(6.0.3790.3959); Mon, 24 Aug 2009 17:02:02 -0700 X-Originating-IP: [69.157.100.152] X-Originating-Email: [scottekeighan@sympatico.ca] X-Original-Message-ID: X-Original-Return-Path: scottekeighan@sympatico.ca Received: from your4dacd0ea75 ([69.157.100.152]) by BLU0-SMTP36.blu0.hotmail.com over TLS secured channel with Microsoft SMTPSVC(6.0.3790.3959); Mon, 24 Aug 2009 17:02:01 -0700 Reply-To: "Scott Keighan" From: "Scott Keighan" X-Original-To: "Lancair Mailing List" Subject: Fuel Flow Issue Solved X-Original-Date: Mon, 24 Aug 2009 20:01:26 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0089_01CA24F5.A997DD50" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3598 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3350 X-OriginalArrivalTime: 25 Aug 2009 00:02:01.0362 (UTC) FILETIME=[457A9F20:01CA2517] This is a multi-part message in MIME format. ------=_NextPart_000_0089_01CA24F5.A997DD50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hello Everyone, I just thought I would update everyone on my Fuel Flow issue. About a month back I asked for advise about a sudden lack of fuel flow. Where I used to get 20-21gph on Take off I has suddenly getting = 12-14gph. All run ups were normal but when applying full power for takeoff I would = not get enough flow. When initiating the Electric fuel pump everything = turned to=20 normal. Well this problem turned into quit the hunt to find the issue. To make a long story short I had disassembled and reassembled the = majority of the fuel system from the: Engine driven fuel pump Throttle control unit Manifold spider valve Injectors and lines gascolator fuel flow meter all fuel lines tank vents Electric fuel pump What did it come down to?? A broken O-ring on the inlet side of the Electric Fuel pump fitting. Air was being sucked into the system. I finally discovered it by = putting a vaccum on the fuel lines from the engine to the tanks. When a vaccum could not = be held I traced it to the O-ring. Four weeks of down time and about 80hrs of work to find the .50 cent = problem. Of course I had to reset all my flows of which I now get 24gph and 22psi = on Takeoff. Now I am still not using my Electric Boost for Take Off. Should I or = should I not??? What is the concensis of people in the know. Thanks to everyone whom gave me some input. Scott Keighan L-IV IO-550G =20 ------=_NextPart_000_0089_01CA24F5.A997DD50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hello Everyone,
 
I just thought I would update everyone = on my Fuel=20 Flow issue.
 About a month back I asked for = advise about a=20 sudden lack of fuel flow.
Where I used to get 20-21gph on Take = off I has=20 suddenly getting 12-14gph.
All run ups were normal but when = applying full=20 power for takeoff I would not
get enough flow.  When initiating = the Electric=20 fuel pump everything turned to
normal.
 
Well this problem turned into quit the = hunt to find=20 the issue.
To make a long story short I had = disassembled and=20 reassembled the majority of
the fuel system from the:
Engine driven fuel pump
Throttle control unit
Manifold spider valve
Injectors and lines
gascolator
fuel flow meter
all fuel lines
tank vents
Electric fuel pump
 
What did it come down to??
 
A broken O-ring on the inlet side of = the Electric=20 Fuel pump fitting.
Air was being sucked into the = system.  I=20 finally discovered it by putting a vaccum
on the fuel lines from the engine to = the=20 tanks.  When a vaccum could not be held
I traced it to the O-ring.
 
Four weeks of down time and=20 about 80hrs of work to find the .50 cent problem.
Of course I had to reset all my flows = of which I=20 now get 24gph and 22psi on Takeoff.
 
Now I am still not using my Electric = Boost for Take=20 Off.  Should I or should I not???
What is the concensis of people in = the=20 know.
 
Thanks to everyone whom gave me some=20 input.
 
Scott Keighan
L-IV   = IO-550G  
 
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