X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm20-vm0.bullet.mail.bf1.yahoo.com ([98.139.213.165] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with SMTP id 5747873 for flyrotary@lancaironline.net; Thu, 06 Sep 2012 13:16:50 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.213.165; envelope-from=echristley@att.net Received: from [98.139.212.146] by nm20.bullet.mail.bf1.yahoo.com with NNFMP; 06 Sep 2012 17:16:14 -0000 Received: from [66.94.237.121] by tm3.bullet.mail.bf1.yahoo.com with NNFMP; 06 Sep 2012 17:16:13 -0000 Received: from [127.0.0.1] by omp1026.access.mail.mud.yahoo.com with NNFMP; 06 Sep 2012 17:16:13 -0000 X-Yahoo-Newman-Id: 893947.35282.bm@omp1026.access.mail.mud.yahoo.com Received: (qmail 90688 invoked from network); 6 Sep 2012 17:16:13 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1346951773; bh=XrAFYEfcJt19GYigdZ3Ujidz97VVK3yv7FcM49ozJPc=; h=X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Received:Message-ID:Date:From:User-Agent:MIME-Version:To:Subject:References:In-Reply-To:Content-Type; b=Ae3Fxeg/q+t2c9X+rzOSe45kmbPxiu842m9sTFYg51n5UVt2bJ9BAOytFXnm8EVEZvqhl6oyZ7t5vFykImcZc4VABdtRzekDm4ChbPIXHxeHQh5nDos0VZahqm3T/BCj6T/+WiYxZxZpxvQ7bSH83l/KP7boqik/59TlDLVi/e4= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: acMhnVUVM1nUvH0gGzLkeN3bnqWPVvJU63d5DXB.S7Ene3l uy3OJnaWd.hbEF_rVClhOxENc5AJd6tzccAiuCg6FSST6c6IqvJvrSkjOy9F 6t_.ty48Wii0JXREt7X0.TzQiOU5T_TPGD2sK_n9y9fwLtvI20dDT2I7WAdA Rfi1UCfBJMfb8fPM3APQZWrZUUmlTTZXzmdEtCu3hnLTsR5o9tFMZ4fe2acN im49CtOe26D7ZZG6i77SQUPX6zsgNKqmk5csxUdPn4jP8wHWtYcWpnsBSoju s_UK5ANKpVkTidAXmVF1f.zREut0D0ubvbd5DaID6MRFFkycVA3wvsALjzdW 6wq9qy6A1L5tbOl06wupH9mIUMP0vZjuzbTJYECLmwTXuo_i5yX3nIum628M EeP182Y1YP1zNeS60vNrFzKVp.10OPfZRrink7NEpYQ25Ag6vzc3U X-Yahoo-SMTP: 40RP3pGswBDvPav1a.I8eMv.KS8bdgWBnCloVoKaow-- Received: from [10.62.19.17] (echristley@216.240.30.4 with plain) by smtp108.sbc.mail.mud.yahoo.com with SMTP; 06 Sep 2012 10:16:13 -0700 PDT Message-ID: <5048DA55.4010305@att.net> Date: Thu, 06 Sep 2012 13:16:05 -0400 From: Ernest Chrisltey User-Agent: Mozilla/5.0 (X11; Linux i686; rv:15.0) Gecko/20120824 Thunderbird/15.0 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Intermittent hiccup References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------070506080904010003040507" This is a multi-part message in MIME format. --------------070506080904010003040507 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 09/06/2012 09:21 AM, Bill Bradburry wrote: > > Do you think that I could have an intake leak that is causing this > fluctuation? This makes no sense to me. How could it be fluctuating?? > > Bill B > > How much faith do you have in the quality of your injectors? I noticed from my run logs that I sometimes get an AFR that drops out the bottom. It will last for a second or two, and then goes away for 30 to 45 seconds. It only happens when the secondaries come online, and was much worse when I had the computer configured for a higher number of squirts, eg. they opened twice as often for half the time. I can definitely see a 'hiccup' in the log graphs. I'm having an inclination to blame it on an injector getting stuck open, and momentarily flooding the engine . --------------070506080904010003040507 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit

On 09/06/2012 09:21 AM, Bill Bradburry wrote:

Do you think that I could have an intake leak that is causing this fluctuation? This makes no sense to me. How could it be fluctuating??

Bill B

How much faith do you have in the quality of your injectors?

I noticed from my run logs that I sometimes get an AFR that drops out the bottom. It will last for a second or two, and then goes away for 30 to 45 seconds. It only happens when the secondaries come online, and was much worse when I had the computer configured for a higher number of squirts, eg. they opened twice as often for half the time. I can definitely see a 'hiccup' in the log graphs. I'm having an inclination to blame it on an injector getting stuck open, and momentarily flooding the engine . --------------070506080904010003040507--