Return-Path: Received: from mail.tsisp.com ([65.23.108.44] verified) by logan.com (CommuniGate Pro SMTP 4.2b2) with ESMTP-TLS id 3209431 for flyrotary@lancaironline.net; Thu, 06 May 2004 17:17:20 -0400 Received: from stevehome by mail.tsisp.com (Technical Support Inc.) with SMTP id CQA74584 for ; Thu, 06 May 2004 17:17:22 -0400 Reply-To: From: "Steve Brooks" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: surging Date: Thu, 6 May 2004 17:18:39 -0400 Message-ID: <00ed01c433af$b4b76df0$6400a8c0@WORKGROUP.local> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: Importance: Normal John, On the rich issue, I think that I read somewhere that the stock Mazda ran about 35 lbs. I also read somewhere (Tracey's EC-2 instructions or web site) to set the fuel pressure at 40 lbs. Also your regulator should have a manifold pressure input to it, so that it will adjust the pressure automatically 1 lb for each inch of manifold pressure. My .02 - just not sure of my sources. Steve Brooks Cozy MKIV - Flying soon 13BT -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On Behalf Of John Slade Sent: Thursday, May 06, 2004 2:42 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: surging Turbo Rotary Cozy IV N96PM flew again this morning. I think this is a first! Nothing went wrong, and I didn't break anything. :D I flew for about 0.8hrs. Ambient was about 75. Coolant and oil never went above 180, and were down to 140 during decent, so cooling just doesn't seem to be a problem. A write up (with pictures this time) is at http://canardaviation.com/cozy/chap29.htm#flight5 for your enjoyment. I still have a rich mixture problem. Its starting much easier now, and running smooth, but still way too rich. Today I had the mixture knob against the stop (lean) for the entire flight. Once I tried richening it a touch, and the engine faultered immediately. The mode 3 (on the ground) adjustments dont seem to make any difference. I wonder if I need smaller injectors or lower fuel pressure (currently running about 45psi). Thoughts anyone? John Slade >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html