X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [66.219.56.248] (HELO qnsi-xch.qnsi.net) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 923703 for flyrotary@lancaironline.net; Thu, 12 Jan 2006 09:43:17 -0500 Received-SPF: none receiver=logan.com; client-ip=66.219.56.248; envelope-from=bhughes@qnsi.net Content-class: urn:content-classes:message Return-Receipt-To: "Bobby J. Hughes" MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----_=_NextPart_001_01C61786.8A96F6E6" Disposition-Notification-To: "Bobby J. Hughes" Subject: RE: [FlyRotary] Re: Momentary pucker X's 3 X-MimeOLE: Produced By Microsoft Exchange V6.5.6944.0 Date: Thu, 12 Jan 2006 08:43:23 -0600 Message-ID: X-MS-Has-Attach: X-MS-TNEF-Correlator: Thread-Topic: [FlyRotary] Re: Momentary pucker X's 3 thread-index: AcYXhc4qDexMhIQsSjyDc08dg3AwFAAAKfpg From: "Bobby J. Hughes" To: "Rotary motors in aircraft" This is a multi-part message in MIME format. ------_=_NextPart_001_01C61786.8A96F6E6 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Was the engine rpms close to the injector staging point? =20 Bobby ________________________________ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook Sent: Thursday, January 12, 2006 8:33 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Momentary pucker X's 3 I had the same thought but the scenario is wrong for this. The "miss" would happen only at full throttle (usually during climb) and never at cruise or low power if slipping input shaft were the cause. This is of course based on one example but logically, that is what you would expect. =20 I do intend to add data logging to the EM2 & EC2 but in my experience so far, it would take a VERY sophisticated diagnostic to detect this type of problem. None of the aviation type data logging systems currently on the market will do it. The BMW engine controller (and probably others) can do it however. The listing of engine fault codes is over 200 pages long. It can detect and log a single cylinder miss and tell you which one it was. There are probably more engineering man hours in that controller than I have left to live. =20 Tracy Subject: [FlyRotary] Re: Momentary pucker X's 3 Just a lurker here, but could it have been the shaft in the psru, slipping and rewelding, as just stated on the threads? Duane Service, Florida =09 -----Original Message----- >From: Charlie England >Sent: Jan 11, 2006 6:08 PM >To: Rotary motors in aircraft >Subject: [FlyRotary] Re: Momentary pucker X's 3 > >WALTER B KERR wrote: > >>Flying around the neighborhood today and about 30 minutes into flight >>there was a momentary hic-up. Everything on monitor looked normal, so >>richened a tad and continued flying. About 5 minutes later, same thing >>second verse, and then a third time. Went to full power and rich and it >>did not repeat. No miss while descending to land or while taxing in. Ran >>up a full static for a minute on the ground and everything appeared >>normal. >> >>Any suggestions??? >> >>Bernie, not wanting to start to Lakeland with an unknow problem! >> =20 >> > >Nothing constructive to offer, but is there a Lyc part hiding under the=20 >cowl somewhere? > > >-- >Homepage: http://www.flyrotary.com/ >Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ =09 =09 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net/lists/flyrotary/ =09 ------_=_NextPart_001_01C61786.8A96F6E6 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Was the = engine rpms close=20 to the injector staging point?

Bobby

From: Rotary motors in aircraft=20 [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy=20 Crook
Sent: Thursday, January 12, 2006 8:33 AM
To: = Rotary=20 motors in aircraft
Subject: [FlyRotary] Re: Momentary pucker = X's=20 3

I had the same thought but the scenario is wrong for this. = The "miss"=20 would happen only at full throttle (usually during climb) and never at = cruise or=20 low power if slipping input shaft were the cause. This is of = course=20 based on one example but logically, that is what you would = expect.

I do intend to add data logging to the EM2 & EC2 but in my = experience=20 so far, it would take a VERY sophisticated diagnostic to detect this = type of=20 problem. None of the aviation type data logging systems currently = on the=20 market will do it. The BMW engine controller (and probably others) = can do=20 it however. The listing of engine fault codes is over 200 pages=20 long. It can detect and log a single cylinder miss and tell you = which one=20 it was. There are probably more engineering man hours = in that=20 controller than I have left to live.

Tracy

Subject: [FlyRotary] Re: = Momentary pucker=20 X's 3

Just a lurker here, but could it have been the shaft in = the=20 psru, slipping and rewelding, as just stated on the threads? = Duane=20 Service, Florida

-----Original Message-----
>From: = Charlie=20 England <ceengland@bellsouth.net>>Sent:=20 Jan 11, 2006 6:08 PM
>To: Rotary motors in aircraft <flyrotary@lancaironline.net>
>Subject:=20 [FlyRotary] Re: Momentary pucker X's 3
>
>WALTER B KERR=20 wrote:
>
>>Flying around the neighborhood today and = about 30=20 minutes into flight
>>there was a momentary hic-up. = Everything on=20 monitor looked normal, so
>>richened a tad and continued = flying.=20 About 5 minutes later, same thing
>>second verse, and then a = third=20 time. Went to full power and rich and it
>>did not repeat. No = miss=20 while descending to land or while taxing in. Ran
>>up a full = static=20 for a minute on the ground and everything=20 appeared
>>normal.
>>
>>Any=20 suggestions???
>>
>>Bernie, not wanting to start to = Lakeland=20 with an unknow problem!
>> =
>>
>
>Nothing=20 constructive to offer, but is there a Lyc part hiding under the =
>cowl=20 somewhere?
>
>
>--
>Homepage: http://www.flyrotary.com/
>A= rchive=20 and UnSub: http://mail.lanca= ironline.net/lists/flyrotary/

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

------_=_NextPart_001_01C61786.8A96F6E6--