X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.3c5) with ESMTP id 933115 for flyrotary@lancaironline.net; Thu, 05 May 2005 00:06:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.65; envelope-from=sqpilot@bellsouth.net Received: from paul52u7f5qyav ([209.214.45.48]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with SMTP id <20050505040516.TTIT2434.imf17aec.mail.bellsouth.net@paul52u7f5qyav> for ; Thu, 5 May 2005 00:05:16 -0400 Message-ID: <015301c55127$a234c970$302dd6d1@paul52u7f5qyav> From: "Paul" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: fuel pumps/forced landing Date: Wed, 4 May 2005 23:05:10 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0150_01C550FD.B885C690" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0150_01C550FD.B885C690 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageHi, William...sorry for the late response....yes, that scenario = sounds correct. Paul Conner ----- Original Message -----=20 From: William=20 To: Rotary motors in aircraft=20 Sent: Monday, May 02, 2005 7:12 AM Subject: [FlyRotary] Re: fuel pumps/forced landing Paul, If your ignition system shuts off the pump with no spark, isn't the = following going to happen? Pump 1 on -- engine running, pump 1 fuse blows, engine shuts down very quickly, Pump 2 turned on, but no spark since engine has stopped, therefore it = shuts off right away. Sounds like if engine stops, you have to crank it to get it started = again Bill Schertz KIS Cruiser # 4045 ----- Original Message -----=20 From: sqpilot@bellsouth.net=20 To: Rotary motors in aircraft=20 Sent: Monday, May 02, 2005 1:42 PM Subject: [FlyRotary] Re: fuel pumps/forced landing Turned on the other pump, but the engine had already quit. (yes, it = happens very fast) =20 I now recall reading in the MicroTech manual that the fuel = pumps shut off if it detects no spark from the coils, so that it would = not continue pumping fuel into an engine that has no spark. This is = obviously why the pump only runs for a few seconds when I first turn on = the ignition switch, then quickly stops pumping. We put a voltmeter to = the inline fuse, and found that it had 12.9 volts as soon as the = ignition was turned on, but after a few seconds, the pump stopped and = there was no longer any voltage at the fuse.=20 I'm hoping we can find what caused the slight fuel obstruction = in front of the gascolator....if we can't find the cause, it would be = difficult to regain confidence in the fuel system. Too bad, because the = engine was running strong and smooth, and the temps were great!!! Paul = aka deadstick Conner -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.308 / Virus Database: 266.11.1 - Release Date: 5/2/2005 ------=_NextPart_000_0150_01C550FD.B885C690 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Hi, William...sorry for the late = response....yes,=20 that scenario sounds correct.  Paul Conner
 
----- Original Message -----
From:=20 William=20
Sent: Monday, May 02, 2005 7:12 = AM
Subject: [FlyRotary] Re: fuel=20 pumps/forced landing

Paul,
If your ignition system shuts off the = pump with=20 no spark, isn't the following going to happen?
 
Pump 1 on -- engine = running,
pump 1 fuse blows, engine shuts down = very=20 quickly,
Pump 2 turned on, but no spark since = engine has=20 stopped, therefore it shuts off right away.
 
Sounds like if engine stops, you have = to crank it=20 to get it started again
Bill Schertz
KIS Cruiser # 4045
----- Original Message -----
From:=20 sqpilot@bellsouth.net =
To: Rotary motors in = aircraft=20
Sent: Monday, May 02, 2005 = 1:42=20 PM
Subject: [FlyRotary] Re: fuel = pumps/forced landing
 Turned on the other pump, but = the engine had already quit. (yes, it happens very=20 fast)  
 
      I = now recall=20 reading in the MicroTech manual that the fuel pumps shut off if it = detects=20 no spark from the coils, so that it would not continue pumping fuel = into an=20 engine that has no spark. This is obviously why the pump only runs = for a few=20 seconds when I first turn on the ignition switch, then quickly stops = pumping. We put a voltmeter to the inline fuse, and found that it = had 12.9=20 volts as soon as the ignition was turned on, but after a few = seconds, the=20 pump stopped and there was no longer any voltage at the fuse. =
    I'm hoping we = can find what=20 caused the slight fuel obstruction in front of the gascolator....if = we can't=20 find the cause, it would be difficult to regain confidence in the = fuel=20 system. Too bad, because the engine was running strong and smooth, = and the=20 temps were great!!!  Paul aka deadstick = Conner

No virus found in this incoming message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.308 / Virus Database: 266.11.1 - Release = Date:=20 5/2/2005
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