X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from EXHUB003-3.exch003intermedia.net ([207.5.74.110] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTPS id 3732343 for flyrotary@lancaironline.net; Thu, 25 Jun 2009 09:40:13 -0400 Received-SPF: none receiver=logan.com; client-ip=207.5.74.110; envelope-from=jwhaley@datacast.com Received: from EXVMBX003-5.exch003intermedia.net ([207.5.74.45]) by EXHUB003-3.exch003intermedia.net ([207.5.74.110]) with mapi; Thu, 25 Jun 2009 06:39:35 -0700 From: Jeff Whaley To: Rotary motors in aircraft Date: Thu, 25 Jun 2009 06:39:34 -0700 Subject: RE: [FlyRotary] Re: Consistant progress...not sure how to act? Thread-Topic: [FlyRotary] Re: Consistant progress...not sure how to act? Thread-Index: Acn1k3vJD4VV/tUYT0C9glaeV57s5QAARvCA Message-ID: References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Excellent advice Bill - spot-on in my opinion ... find the leak, return the= EC2 to ALL-DEFAULTS, then Modes 3,6,2,1. Along with Bill's advice I would be very critical of where my manifold pres= sure pick-up point is and would try to get the EC2 pick-up points as close = to my gauge as possible ... there's no point reading a manifold pressure th= at is not what the EC2 is seeing. Jeff -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Beh= alf Of Bill Bradburry Sent: Thursday, June 25, 2009 8:49 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Consistant progress...not sure how to act? Chris, If you are idling at 15 inches, you have a leak somewhere. First check you= r manifold pressure in the closed hangar against your altimeter set for field elevation. You are at what? 500 ft? The MP should be within a half inch o= f the altimeter setting in the Kollsman window. If your MP reading is correct, then find the leak. I have seen several methods for finding leaks on this list. Get a can of WD-40 with the little red tube on it so you can control it and not make muc= h of a mess, and with the engine idling, spurt(very small spurt) WD-40 on eac= h crack and cranny on the intake system. Spurt, listen for the idle speed to increase, spurt next place. Don't forget where the injectors install, it could be leaking around them. Idle increase=3Dleak. No change=3Dno leak. Be careful there is a prop on there. Do this with someone. Don't spray the exhaust! To explain what I think might be happening with your fuel flow and HP numbers in a couple of words, its your new large injectors. The EM-2 looks at pulse duration to start to make its calculations. The big injectors hav= e a smaller duration to satisfy the fuel requirement. You will have to recalibrate your fuel flow to fix this. Dennis is doing this now as well. You should start all over with your tuning from the very beginning. Do the check the injector flow rate at 22 inches Mode 3. Tracy suggested this order, Mode 3, 6, 2, 1, then auto tune. You don't want to be doing auto tune now, cause every time you do, it will change something. Fix the leak before you do anything else.=20 Bill B=20