X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from nm19-vm0.access.bullet.mail.sp2.yahoo.com ([98.139.44.172] verified) by logan.com (CommuniGate Pro SMTP 6.0c1) with SMTP id 5747958 for flyrotary@lancaironline.net; Thu, 06 Sep 2012 13:55:11 -0400 Received-SPF: none receiver=logan.com; client-ip=98.139.44.172; envelope-from=echristley@att.net Received: from [98.139.44.100] by nm19.access.bullet.mail.sp2.yahoo.com with NNFMP; 06 Sep 2012 17:54:34 -0000 Received: from [98.139.44.82] by tm5.access.bullet.mail.sp2.yahoo.com with NNFMP; 06 Sep 2012 17:54:34 -0000 Received: from [127.0.0.1] by omp1019.access.mail.sp2.yahoo.com with NNFMP; 06 Sep 2012 17:54:34 -0000 X-Yahoo-Newman-Id: 447473.78786.bm@omp1019.access.mail.sp2.yahoo.com Received: (qmail 13128 invoked from network); 6 Sep 2012 17:54:33 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1346954073; bh=CT59cT7U+AnNMnKe/KnUGreTxTgj1sud4PwI8+NHfw8=; 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=FMNxMwWjynpLmGX1lKW484BkX9KB78SriSoQF06ZqliOovUft1KL7VZBcSXUGwEyNlGqdbM9gFsvXoP7frpKxV8+SE2TY7PueLbdREdYsPEdTNbr6I9px7lsiuIaIcmkNPq8kDa0iJPhLFj2EYImAluYmut46qWRCD5G+MVGRGk= X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: npJ9WZwVM1luSCaW6tz1FNWqOc4w43ph8UXI0dKyyENCBIL M7QD3dAOwVjxQ0939Cr3qrUavxUpVlPFOpu04VlQPR87jZcog27ijsxAO80C i6xnUapWbDRjzv6X.h7fewle3SGEyfQ4SRTzu8JBo_Loht.KXo_8brH0wU.2 G2uB9qy0eOjfM3B1PI02h.aImrwXud4FiRYw4Kd0Pn0PjXSI_ZBkFnotmarS 7hwk8AWDYeMNF4ka_e4kXovaJV1FOGzHW6c8eR1vxPG2yb9VkBwwm.aV_8Jv _xSPzZvq7OhJUNiu6Nfe8M9Wpt.i5eZr0kxCoyy3MQVuggKlnAhT.dNUbq5L AcALPZ.RZSKJJq4gMZ_XjK1Tm7AfKoTYFeNLiDs6lCjoPet9p4kzE28bDAYK zjdVVBP9Y9HscEkoVdu7ccnDpSM5PtTr26V6dkwpD7Xik9l5aC9nT X-Yahoo-SMTP: 40RP3pGswBDvPav1a.I8eMv.KS8bdgWBnCloVoKaow-- Received: from [10.62.19.17] (echristley@216.240.30.4 with plain) by smtp105.sbc.mail.ne1.yahoo.com with SMTP; 06 Sep 2012 17:54:33 +0000 UTC Message-ID: <5048E350.80303@att.net> Date: Thu, 06 Sep 2012 13:54:24 -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="------------070509080005060609020005" This is a multi-part message in MIME format. --------------070509080005060609020005 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 09/06/2012 01:39 PM, Bill Bradburry wrote: > > I had the injectors cleaned and flow tested prior to installing them, > but since I don't know what is causing this problem, I am willing to > consider anything. > > Bill B > > Do you have a recording AFR meter? Can you rent/borrow/steal one? My issue did not manifest itself during last night's run, but then I've switched the configuration so that the injectors are opening and closing half as much. It definitely seemed to be an issue with high frequency operation. I doubt that the injector cleaners would consider testing for such a thing. If I can get by the airport in the next couple of days and you would think it helpful, I could run a test where I switch from two to four and maybe even 8 squirts per cycle (a cycle being 720* or two rotor faces). In fact, I should do it anyway. It would at least ease my mind as to what was causing my AFR to hit the floor two weeks ago. It only requires changing an entry in a dialog box and doing a short run-up. --------------070509080005060609020005 Content-Type: text/html; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit

On 09/06/2012 01:39 PM, Bill Bradburry wrote:

I had the injectors cleaned and flow tested prior to installing them, but since I don’t know what is causing this problem, I am willing to consider anything.

Bill B

Do you have a recording AFR meter? Can you rent/borrow/steal one?

My issue did not manifest itself during last night's run, but then I've switched the configuration so that the injectors are opening and closing half as much. It definitely seemed to be an issue with high frequency operation. I doubt that the injector cleaners would consider testing for such a thing.

If I can get by the airport in the next couple of days and you would think it helpful, I could run a test where I switch from two to four and maybe even 8 squirts per cycle (a cycle being 720* or two rotor faces). In fact, I should do it anyway. It would at least ease my mind as to what was causing my AFR to hit the floor two weeks ago. It only requires changing an entry in a dialog box and doing a short run-up.
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