X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [64.4.51.79] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3.3) with ESMTP id 970510 for flyrotary@lancaironline.net; Tue, 31 May 2005 13:26:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.4.51.79; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 31 May 2005 10:25:54 -0700 Message-ID: Received: from 64.4.51.220 by BAY107-DAV7.phx.gbl with DAV; Tue, 31 May 2005 17:25:54 +0000 X-Originating-IP: [64.4.51.220] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: will EFI pumps pump air Date: Tue, 31 May 2005 13:25:50 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00EA_01C565E4.4369C040" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0011.1703 Seal-Send-Time: Tue, 31 May 2005 13:25:50 -0400 X-OriginalArrivalTime: 31 May 2005 17:25:54.0906 (UTC) FILETIME=[CCEFBBA0:01C56605] This is a multi-part message in MIME format. ------=_NextPart_000_00EA_01C565E4.4369C040 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable True. I did have one occasion where that lousy tank slosh stuff clogged = the first filter (gascolator screen). Fuel pressure fluctuation was the = indication. My 'Plan B' was to turn on the backup pump which stabilized = the pressure. It did this by collapsing the filter screen in the = gascolator with suction. The EFI filter caught the junk that bypassed = the gascolator screen. Tracy=20 >snip< Of course, *any* tank switching/transfer method has it's downsides.=20 Tracy's method (which I think is fine, overall) has the downside of no=20 plan B if there's a problem with blockage, contamination etc with the=20 primary supply tank. Charlie ------=_NextPart_000_00EA_01C565E4.4369C040 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

True. I did have one occasion where that lousy tank slosh = stuff=20 clogged the first filter (gascolator screen). Fuel pressure = fluctuation=20 was the indication. My 'Plan B' was to turn on the backup=20 pump which stabilized the pressure. It did this by collapsing = the=20 filter screen in the gascolator with suction. The EFI filter = caught=20 the junk that bypassed the gascolator screen.

Tracy

>snip<

Of course, *any* tank switching/transfer method has it's downsides. =
Tracy's method (which I think is fine, overall) has the downside of = no=20
plan B if there's a problem with blockage, contamination etc with = the=20
primary supply = tank.

Charlie

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