X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [24.25.9.101] (HELO ms-smtp-02-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 927592 for flyrotary@lancaironline.net; Sun, 15 Jan 2006 17:13:15 -0500 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.101; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-025-165.carolina.res.rr.com [24.74.25.165]) by ms-smtp-02-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id k0FMCS4r016148 for ; Sun, 15 Jan 2006 17:12:29 -0500 (EST) Message-ID: <003301c61a20$c5f2fef0$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Momentary pucker X's 3 Date: Sun, 15 Jan 2006 17:12:28 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0030_01C619F6.DCD31CB0" 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 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0030_01C619F6.DCD31CB0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Bernie, Just wanted to let you know that on the trip down to Shady Bend, when I = leaned the engine waayyyy back, I get what I refer to as a "lean miss". = This is down around around 5 GPH. It occurs more frequently the leaner = you trim the mixture. =20 I don't recall the status of your mixture when you were having the = hic-ups but if you were running very lean - it well could have been = simply "lean-miss" and richening the mixture should make it go - a - = way. Ed ----- Original Message -----=20 From: WALTER B KERR=20 To: Rotary motors in aircraft=20 Sent: Thursday, January 12, 2006 10:44 AM Subject: [FlyRotary] Re: Momentary pucker X's 3 Hi Bobby, With this new prop, absorbs lots more power, that is a possibility but = Tracy and I kinda ruled it out this morning. When I fly next, will try = to fly at about the same conditions and record some data. Bernie = =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D On Thu, 12 Jan 2006 08:43:23 -0600 "Bobby J. Hughes" = writes: Was the engine rpms close to the injector staging point? 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. 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. 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 -----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/ -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net/lists/flyrotary/ ------=_NextPart_000_0030_01C619F6.DCD31CB0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Bernie,
 
Just wanted to let you know that on the = trip down=20 to Shady Bend, when I leaned the engine waayyyy back, I get what I refer = to as a=20 "lean miss".  This is down around around 5 GPH.  It occurs = more=20 frequently the leaner you trim the mixture. 
 
I don't recall the status of your = mixture when you=20 were having the hic-ups but if you were running very lean - it well = could have=20 been simply "lean-miss" and richening the mixture should make it go - a = -=20 way.
 
Ed
----- Original Message -----
From:=20 WALTER B = KERR
Sent: Thursday, January 12, = 2006 10:44=20 AM
Subject: [FlyRotary] Re: = Momentary pucker=20 X's 3

Hi Bobby,
 
With this new prop, absorbs lots more power, that is a = possibility but=20 Tracy and I kinda ruled it out this morning. When I fly next, will try = to fly=20 at about the same conditions and record some data.
 
Bernie
=
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D
 
On Thu, 12 Jan 2006 08:43:23 -0600 "Bobby J. Hughes" <bhughes@qnsi.net> = writes:
Was the = engine rpms=20 close 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:=20 Rotary motors in aircraft
Subject: [FlyRotary] Re: = Momentary=20 pucker X's 3

I had the same thought but the scenario is wrong for = this.  The=20 "miss" would happen only at full throttle (usually during climb) and = never=20 at cruise or low power if slipping input shaft were the cause.  = This is=20 of course based on one example but logically, that is what you = would=20 expect.
 
I do intend to add data logging to the EM2 & EC2 but in my=20 experience so far, it would take a VERY sophisticated diagnostic to = detect=20 this type of problem.  None of the aviation type data logging = systems=20 currently on the market will do it.  The BMW engine controller = (and=20 probably others) can do it however.  The listing of engine = fault codes=20 is over 200 pages long.  It can detect and log a single = cylinder miss=20 and tell you which one it was.   There are = probably more=20 engineering man hours in that controller than I have left to = live.
 
Tracy
Subject: [FlyRotary] Re: = Momentary=20 pucker 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=20 30 minutes into flight
>>there was a momentary hic-up. = Everything=20 on monitor looked normal, so
>>richened a tad and = continued=20 flying. About 5 minutes later, same thing
>>second verse, = and=20 then a third time. Went to full power and rich and = it
>>did not=20 repeat. No miss while descending to land or while taxing in.=20 Ran
>>up a full static for a minute on the ground and = everything=20 appeared
>>normal.
>>
>>Any=20 suggestions???
>>
>>Bernie, not wanting to start = to=20 Lakeland with an unknow problem!
>> =20
>>
>
>Nothing constructive to offer, but is = there a=20 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=20 and UnSub:   http://mail.lanca= ironline.net/lists/flyrotary/
 
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