X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [65.54.250.84] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1125334 for flyrotary@lancaironline.net; Tue, 23 May 2006 18:42:57 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.54.250.84; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Tue, 23 May 2006 15:42:12 -0700 Message-ID: Received: from 4.171.147.248 by BAY115-DAV12.phx.gbl with DAV; Tue, 23 May 2006 22:42:11 +0000 X-Originating-IP: [4.171.147.248] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Another case of heat-soaked coils? Date: Tue, 23 May 2006 18:42:09 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0070_01C67E98.98CD2DB0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.20.0026.0800 Seal-Send-Time: Tue, 23 May 2006 18:42:09 -0400 X-OriginalArrivalTime: 23 May 2006 22:42:12.0820 (UTC) FILETIME=[22205940:01C67EBA] This is a multi-part message in MIME format. ------=_NextPart_000_0070_01C67E98.98CD2DB0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable I missed that. Question is, was the engine really varying that much or = was it something else? The EM2 gets tach info by watching the primary = injector switching. If the injector drive was erratic that would make = the tach go wacky. John said controller A & B worked the same so I = ruled out controller problems. An intermittent connection to the = injector would fit the symptoms though. Tracy ----- Original Message -----=20 From: Dennis Haverlah=20 To: Rotary motors in aircraft=20 Sent: Tuesday, May 23, 2006 5:53 PM Subject: [FlyRotary] Re: Another case of heat-soaked coils? John Slade's observation included info that the EM-2 was showing wild=20 swings in RPM. Is this a clue to the problem? I'm not sure coils=20 failing would take out the tack info. Is there another failure mode=20 that could cause the tack to malfunction and the engine to sputter -=20 crank angle sensor failure, bad wiring connection from the EC-2 to = the=20 coils? Dennis H. > =20 > -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_0070_01C67E98.98CD2DB0 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =EF=BB=BF
I missed that.  Question is, was the engine really varying = that much=20 or was it something else?  The EM2 gets tach info by watching the = primary=20 injector switching.  If the injector drive was erratic that would = make the=20 tach go wacky.  John said controller A & B worked the same so=20 I ruled out controller problems.  An intermittent = connection to=20 the injector would fit the symptoms though.
 
Tracy
----- Original Message -----
From: Dennis Haverlah
To: Rotary motors in = aircraft
Sent: Tuesday, May 23, 2006 = 5:53 PM
Subject: [FlyRotary] Re: = Another case of=20 heat-soaked coils?



John Slade's observation included info that the = EM-2=20 was showing wild
swings in RPM.  Is this a clue to the = problem? =20 I'm not sure coils
failing would take out the tack = info.   Is=20 there another failure mode
that could cause the tack to = malfunction and=20 the engine to sputter -
crank angle sensor failure,  bad = wiring=20 connection from the EC-2 to the
coils?

Dennis = H.

> =20
>

--
Homepage:  http://www.flyrotary.com/
Archi= ve and=20 UnSub:   http://mail.lanca= ironline.net/lists/flyrotary/
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