X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.121] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5033783 for flyrotary@lancaironline.net; Mon, 27 Jun 2011 08:12:34 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.121; envelope-from=eanderson@carolina.rr.com Return-Path: X-Authority-Analysis: v=1.1 cv=pLPlkKcK38cN4Cv4YkVeTGGRYpmKez/IrX640LVKWnc= c=1 sm=0 a=rPkcCx1H5rrOSfN0dPC7kw==:17 a=arxwEM4EAAAA:8 a=r1ClD_H3AAAA:8 a=Wz7vkbwLPsBoeag-3V0A:9 a=pILNOxqGKmIA:10 a=E93lBu2AAAAA:8 a=A1Yn3FcQR3yo5cCNT14A:9 a=JoYvG_NcPIrJ4c6lvAMA:7 a=hO30gm18fF0A:10 a=MpuOTR30KwMA:10 a=FOUTPhXFUAcA:10 a=zgjei8Deq7QA:10 a=NWVoK91CQyQA:10 a=rPkcCx1H5rrOSfN0dPC7kw==:117 X-Cloudmark-Score: 0 X-Originating-IP: 174.110.167.5 Received: from [174.110.167.5] ([174.110.167.5:51287] helo=EdPC) by cdptpa-oedge04.mail.rr.com (envelope-from ) (ecelerity 2.2.3.46 r()) with ESMTP id 89/57-20202-F83780E4; Mon, 27 Jun 2011 12:11:59 +0000 Message-ID: From: "Ed Anderson" To: "Rotary motors in aircraft" Subject: 20B Bog Date: Mon, 27 Jun 2011 08:11:35 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01CC34A1.D4CC9CA0" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 14.0.8117.416 X-MimeOLE: Produced By Microsoft MimeOLE V14.0.8117.416 This is a multi-part message in MIME format. ------=_NextPart_000_0009_01CC34A1.D4CC9CA0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Tim, One more thing has occurred to me, you indicated you are using secondary = injectors that are a bit larger than your primaries. In that case, = adjusting mode 3 adjusts the flow to both primary and secondary. So IF = you do manage to get the flow down enough on the secondary injectors = using mode 3 so the larger secondary injectors are not injecting too = much fuel (causing the engine to bog), you may find your primary = injectors are now not injecting enough because mode 3 reduces/increases = the flow to both. So I would turn on only the primary injectors and run the engine and use = Mode 3 to get the fuel flow right for the primary injectors (sounds like = you may be ok there). Then activate the secondary injectors and use = Mode 6 to adjust the secondary differential - this mode will adjust the = flow (on time) of the secondary injectors without affecting the flow to = the primary injectors. Might give it a try. As Steve mentioned, you need to try and separate the two injector = systems and try to pin point which one is causing the problem - right = now it sounds like it=92s the secondary system. Ed Edward L. Anderson Anderson Electronic Enterprises LLC 305 Reefton Road Weddington, NC 28104 http://www.andersonee.com http://www.eicommander.com ------=_NextPart_000_0009_01CC34A1.D4CC9CA0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Tim,
 
One more thing has occurred to me, you indicated = you are=20 using secondary injectors that are a bit larger than your = primaries.  In=20 that case, adjusting mode 3 adjusts the flow to both primary and=20 secondary.  So IF you do manage to get the flow down enough on the=20 secondary injectors using mode 3 so the larger secondary injectors = are not=20 injecting too much fuel (causing the engine to bog), you may find your = primary=20 injectors are now not injecting enough because mode 3 reduces/increases = the flow=20 to both.
 
So I would turn on only the primary injectors = and run the=20 engine and use Mode 3 to get the fuel flow right for the primary = injectors=20 (sounds like you may be ok there).  Then activate the secondary = injectors=20 and use Mode 6 to adjust the secondary differential - this mode will = adjust the=20 flow (on time) of the secondary injectors without affecting the flow to = the=20 primary injectors.  Might give it a try.
 
As Steve mentioned, you need to try and separate = the two=20 injector systems and try to pin point which one is causing the problem - = right=20 now it sounds like it=92s the secondary system.
 
Ed
 
Edward L. Anderson
Anderson Electronic = Enterprises=20 LLC
305 Reefton Road
Weddington, NC 28104
http://www.andersonee.com
http://www.eicommander.com
------=_NextPart_000_0009_01CC34A1.D4CC9CA0--