X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from col0-omc2-s5.col0.hotmail.com ([65.55.34.79] verified) by logan.com (CommuniGate Pro SMTP 5.3.6) with ESMTP id 4247843 for flyrotary@lancaironline.net; Tue, 04 May 2010 19:00:51 -0400 Received-SPF: pass receiver=logan.com; client-ip=65.55.34.79; envelope-from=momsblacksheep@msn.com Received: from COL109-W34 ([65.55.34.71]) by col0-omc2-s5.col0.hotmail.com with Microsoft SMTPSVC(6.0.3790.4675); Tue, 4 May 2010 16:00:05 -0700 Message-ID: Return-Path: momsblacksheep@msn.com Content-Type: multipart/alternative; boundary="_b81f990e-57b3-44ad-b441-a9cd08e1ea35_" X-Originating-IP: [76.93.99.35] From: Steve Parkins To: flyrotary Subject: RE: [FlyRotary] Re: tuning issues Date: Tue, 4 May 2010 16:00:04 -0700 Importance: Normal In-Reply-To: References: MIME-Version: 1.0 X-OriginalArrivalTime: 04 May 2010 23:00:05.0228 (UTC) FILETIME=[890052C0:01CAEBDD] --_b81f990e-57b3-44ad-b441-a9cd08e1ea35_ Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable if this was a car=2C i would ask if you had done any work on the fule sys? = so often i find floting sliacon in the fuel. from the fuel sender gasget=2C= teflon tape on threads. remove all fuel and run it from a jerry can to the runner.2 cents steve parkins =20 To: flyrotary@lancaironline.net Date: Tue=2C 4 May 2010 14:53:12 -0400 From: tracy@rotaryaviation.com Subject: [FlyRotary] Re: tuning issues I don=92t think B would be meaningful since it is so different. Do you agr= ee? No. Not at all. Try it. There is almost nothing you can do with the EC= 2/3 to make the engine miss as you describe. Besides=2C the fact that B = has not been adjusted is a good reason TO try it. You have nothing to gai= n by NOT trying it. The first thing to try is always switching to the backup controller. =20 I have talked to more than one builder who had engine anomalies bad enough = that they made precautionary landings and still never tried the backup cont= roller. I still don't understand the reluctance to throw that little switc= h. Tracy On Tue=2C May 4=2C 2010 at 2:30 PM=2C Bill Bradburry wrote: None of the changes made on A during the tuning process has been transferre= d to B. I don=92t think B would be meaningful since it is so different. D= o you agree? =20 Bill B =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Tracy Crook Sent: Tuesday=2C May 04=2C 2010 1:34 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: tuning issues =20 When something is truly random=2C there are no clues. You have to check ev= erything. What have you checked? Try the easiest things first. Flip that= little switch. Does it do the same thing on both controllers? =20 On Tue=2C May 4=2C 2010 at 1:19 PM=2C Bill Bradburry wrote: I don=92t think it is fuel filter related. The fuel pressure is holding st= eady during this time. I think it is some kind of misfire=2C but have no c= lue as to what could be causing it or how to go about diagnosing it. It is= both random and intermittent and happens at various rpms. Nothing seems c= onsistant about it happening. What should I check? =20 Bill B =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Tracy Crook Sent: Tuesday=2C May 04=2C 2010 12:53 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: tuning issues =20 Anything that causes a misfire will cause the mixture to indicate lean. Re= member=2C it's an Oxygen sensor. If you don't burn the fuel it's got a lot= of that being pumped down the exhaust making the instrument think things = are Very lean.. =20 Problem may not be fuel related at all. Tracy On Tue=2C May 4=2C 2010 at 11:46 AM=2C Bill Bradburry wrote: After I get the engine running smoothly in a range=2C it will occasionally hiccup. When it does=2C the mixture will then go down sometimes off the scale=2C then come back to where it was. I have not noticed any dips in th= e MAP table at these locations. Any ideas=2C suggestions? Bill B -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.= html =20 =20 =20 _________________________________________________________________ The New Busy is not the too busy. Combine all your e-mail accounts with Hot= mail. http://www.windowslive.com/campaign/thenewbusy?tile=3Dmultiaccount&ocid=3DP= ID28326::T:WLMTAGL:ON:WL:en-US:WM_HMP:042010_4= --_b81f990e-57b3-44ad-b441-a9cd08e1ea35_ Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable if this was a car=2C i would ask if you had done any work on the fule sys? = so often i find floting sliacon in the fuel. from the fuel sender gasget=2C= teflon tape on threads.
remove all fuel and run it from a jerry can to the runner.2 cents

steve parkins



 =3B
To: flyrotary@lancaironline.net
Date: Tue=2C 4 May 2010 14:53:12 -0400From: tracy@rotaryaviation.com
Subject: [FlyRotary] Re: tuning issues<= BR>
I don=92t think B would be mea= ningful since it is so different. =3B Do you agree?

No. =3B Not at all. =3B =3B =3B Try it. =3B There= is almost nothing you can do with the EC2/3 to make the engine miss as you= describe. =3B Besides=2C =3B =3B the fact that B has not been = adjusted is a good reason TO try it. =3B =3B You have nothing to ga= in by NOT trying it.

The first thing to try is always switchi= ng to the backup controller. =3B
I have talked to more than one bui= lder who had engine anomalies bad enough that they made precautionary landi= ngs and still never tried the backup controller. =3B I still don't unde= rstand the reluctance to throw that little switch.

Tracy

On Tue=2C May 4=2C 2010 at 2:30 PM=2C Bill Brad= burry <=3Bbbr= adburry@bellsouth.net>=3B wrote:

None of the chan= ges made on A during the tuning process has been transferred to B. =3B = I don=92t think B would be meaningful since it is so different. =3B Do = you agree?

 =3B<= /FONT>

Bill B

 =3B<= /FONT>

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Tuesday=2C May 04=2C 2010 1:34 PM


To: = Rotary motors in aircraft
Subject:<= /SPAN> [FlyRotary] Re: tuning issues

 =3B

When something is trul= y random=2C there are no clues. =3B You have to check everything. = =3B What have you checked? =3B Try the easiest things first. =3B Fl= ip that little switch.  =3B Does it do the same thing on both controlle= rs?

 =3B

On Tue=2C May 4=2C 2010 at 1:19 PM=2C Bill Bradburry &= lt=3Bbbradburry@bellsouth.net>=3B wrote:

I don=92t think = it is fuel filter related. =3B The fuel pressure is holding steady duri= ng this time. =3B I think it is some kind of misfire=2C but have no clu= e as to what could be causing it or how to go about diagnosing it. =3B = It is both random and intermittent and happens at various rpms. =3B Not= hing seems consistant about it happening.

What should I ch= eck?

 =3B<= /FONT>

Bill B

 =3B<= /FONT>

From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Tracy Crook
Sent: Tuesday=2C May 04=2C 2010 12:53 PM
= To: Rotary motors in aircraft<= BR>Subject: [FlyRotary] Re:= tuning issues

 =3B

Anything that causes a= misfire will cause the mixture to indicate lean. =3B Remember=2C it's = an Oxygen sensor. =3B If you don't burn the fuel it's got a lot of that= being pumped down the exhaust =3B making the instrument think things a= re Very lean.. =3B

Problem may not be fuel related at all.
<= BR>Tracy

 =3B

 =3B



The New Busy is not the too busy. Combine a= ll your e-mail accounts with Hotmail. Get busy. = --_b81f990e-57b3-44ad-b441-a9cd08e1ea35_--