X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-da05.mx.aol.com ([205.188.105.147] verified) by logan.com (CommuniGate Pro SMTP 5.3.6) with ESMTP id 4247936 for flyrotary@lancaironline.net; Tue, 04 May 2010 21:15:37 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.105.147; envelope-from=SHIPCHIEF@aol.com Received: from imo-ma04.mx.aol.com (imo-ma04.mx.aol.com [64.12.78.139]) by imr-da05.mx.aol.com (8.14.1/8.14.1) with ESMTP id o451Et07010658 for ; Tue, 4 May 2010 21:14:55 -0400 Received: from SHIPCHIEF@aol.com by imo-ma04.mx.aol.com (mail_out_v42.9.) id q.d76.50e2938 (43995) for ; Tue, 4 May 2010 21:14:51 -0400 (EDT) Received: from smtprly-db02.mx.aol.com (smtprly-db02.mx.aol.com [205.188.249.153]) by cia-dd06.mx.aol.com (v128.3) with ESMTP id MAILCIADD064-5c3a4be0c688a6; Tue, 04 May 2010 21:14:51 -0400 Received: from Webmail-d105 (webmail-d105.sim.aol.com [205.188.171.199]) by smtprly-db02.mx.aol.com (v128.3) with ESMTP id MAILSMTPRLYDB028-5c3a4be0c688a6; Tue, 04 May 2010 21:14:48 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: tuning issues Date: Tue, 04 May 2010 21:14:47 -0400 X-AOL-IP: 24.19.204.151 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: shipchief@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CCBA077D27305F_6280_B8FD_Webmail-d105.sysops.aol.com" X-Mailer: AOL Webmail 31650-STANDARD Received: from 24.19.204.151 by Webmail-d105.sysops.aol.com (205.188.171.199) with HTTP (WebMailUI); Tue, 04 May 2010 21:14:47 -0400 Message-Id: <8CCBA077D18E819-6280-5CCB@Webmail-d105.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: SHIPCHIEF@aol.com ----------MB_8CCBA077D27305F_6280_B8FD_Webmail-d105.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Bill; I had some trouble with my manifold pressure sense lines. In my case, they= picked up oil from the bottom of the intake plenum (before I put a restri= ctor in the turbo oil supply line) So the lines went downhill to the EC-2,= causing a change in static pressure and probably dampened the response. Dynamic pulsations in the manifold where the sense line connects could con= fuse the controller as well?=20 I installed small tubes inside my plenum to sense pressure from the center= of the cavity, and may make an oil trap at the low point if the problem= persists, but I also might install a restrictor, as I have a ragged idle.= Or it could be me, as I have very little ground running time yet. -----Original Message----- From: Bill Bradburry To: Rotary motors in aircraft Sent: Tue, May 4, 2010 11:42 am Subject: [FlyRotary] Re: tuning issues I am using the Iridium plugs now. =20 I will check the crank angle sensor, Ernest, but seems to me it is mounted= on a casting on the Renesis. I could be wrong. I will have to look. =20 Bill B =20 From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be= half Of Mark Steitle Sent: Tuesday, May 04, 2010 2:37 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: tuning issues =20 Bill,=20 =20 I cured an intermittent mis-fire on my 20B by switching to the Iridium plu= gs, same as those used in the Renesis engines. =20 Mark S. =20 On Tue, May 4, 2010 at 1:25 PM, Ernest Christley wr= ote: Bill Bradburry wrote: I don=E2=80=99t think it is fuel filter related. The fuel pressure is hold= ing steady during this time. I think it is some kind of misfire, but have= no clue 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 consistant about it happening. What should I check? Bill B How is your crank-angle sensor mounted? Could it be loose? Could the wire= be frayed? -- Homepage: http://www.flyrotary.com/ Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List= .html =20 ----------MB_8CCBA077D27305F_6280_B8FD_Webmail-d105.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="utf-8"
Bill;
I had some trouble with my manifold pressure sense lines. In my case,= they picked up oil from the bottom of the intake plenum (before I put a= restrictor in the turbo oil supply line) So the lines went downhill to th= e EC-2, causing a change in static pressure and probably dampened the resp= onse.
Dynamic pulsations in the manifold where the sense line connects coul= d confuse the controller as well?
I installed small tubes inside my plenum to sense pressure from the= center of the cavity, and may make an oil trap at the low point if the pr= oblem persists, but I also might install a restrictor, as I have a ragged= idle. Or it could be me, as I have very little ground running time yet.


-----Original Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Tue, May 4, 2010 11:42 am
Subject: [FlyRotary] Re: tuning issues

I am using the Irid= ium plugs now. 
I will check the cr= ank angle sensor, Ernest, but seems to me it is mounted on a casting on th= e Renesis.  I could be wrong.  I will have to look.
 
Bill B
 
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mark Steitle
Sent: Tuesday, May 04, 201= 0 2:37 PM
To: Rotary motors in aircr= aft
Subject: [FlyRotary] Re:= tuning issues
 
Bill, 
 
I cured an intermittent mis-fire on my 20B by switchi= ng to the Iridium plugs, same as those used in the Renesis engines.=
 
Mark S.  =
On Tue, May 4, 2010 at 1:25 PM, Ernest Christley <= echristley@nc.rr.com> wrote= :
Bill Bradburry wrote:

I don=E2=80=99t think it is fuel filter related. The fuel pressure is hold= ing steady during this time. I think it is some kind of misfire, but have= no clue 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 consistant about it happening.

What should I check?

Bill B
How is your crank-angle sensor mounted? Could it be= loose? Could the wire be frayed?


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