X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 2 [X] Return-Path: Received: from willowsprings.uwyo.edu ([129.72.10.31] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTPS id 2043679 for flyrotary@lancaironline.net; Mon, 14 May 2007 11:58:52 -0400 Received-SPF: none receiver=logan.com; client-ip=129.72.10.31; envelope-from=sboese@uwyo.edu Received: from TELEGRAPH5.uwyo.edu (exchdb5.uwyo.edu [10.84.60.120]) by willowsprings.uwyo.edu (8.13.8/8.13.8) with ESMTP id l4EFw9v8012012 for ; Mon, 14 May 2007 09:58:09 -0600 (MDT) (envelope-from sboese@uwyo.edu) Received: from UWMAIL.uwyo.edu ([172.26.4.76]) by TELEGRAPH5.uwyo.edu with Microsoft SMTPSVC(6.0.3790.1830); Mon, 14 May 2007 09:58:09 -0600 Received: from Boesexps ([10.4.40.69]) by UWMAIL.uwyo.edu with Microsoft SMTPSVC(6.0.3790.1830); Mon, 14 May 2007 09:58:09 -0600 From: "sboese" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Frustrating Sunday Date: Mon, 14 May 2007 09:55:38 -0600 Message-ID: <005801c79640$50da36e0$4528040a@gg.uwyo.edu> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0059_01C7960E.063FC6E0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 In-Reply-To: X-OriginalArrivalTime: 14 May 2007 15:58:09.0309 (UTC) FILETIME=[AAED24D0:01C79640] This is a multi-part message in MIME format. ------=_NextPart_000_0059_01C7960E.063FC6E0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Mark, I had a similar problem when trying to tune the fuel mixture table after installing the snubbers. I don't have a firmware change related to the snubbers, so my situation isn't as similar to yours as it could be. For some reason, my injector staging threshold got set to 12 in Hg MAP. I probably made the change myself unintentionally. Staging at this low a MAP was not satisfactory because using all four injectors at that low a fuel flow rate was not reliable with symptoms very similar to yours. Changing the staging threshold back to around 16 in Hg allowed successful map table adjustments although it took some work to get the staging to go smoothly at the higher threshold. Verifying your staging threshold might be a good thing to check. If you've already done this, hitting the delete key would be an appropriate response to this email. Steve Boese ------=_NextPart_000_0059_01C7960E.063FC6E0 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable

Mark,

 

I had a similar problem when trying = to tune the fuel mixture table after installing the snubbers.  I = don’t have a firmware change related to the snubbers, so my situation = isn’t as similar to yours as it could be.  For some reason, my injector = staging threshold got set to 12 in Hg MAP.  I probably made the change = myself unintentionally.  Staging at this low a MAP was not satisfactory because using all four = injectors at that low a fuel flow rate was not reliable with symptoms very similar = to yours.  Changing the staging threshold back to around 16 in Hg = allowed successful map table adjustments although it took some work to get the staging to = go smoothly at the higher threshold.  Verifying your staging threshold = might be a good thing to check.  If you’ve already done this, = hitting the delete key would be an appropriate response to this = email.

 

Steve Boese

 

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