Return-Path: Received: from fed1rmmtao04.cox.net ([68.230.241.35] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 568706 for flyrotary@lancaironline.net; Wed, 15 Dec 2004 12:40:32 -0500 Received-SPF: none receiver=logan.com; client-ip=68.230.241.35; envelope-from=daveleonard@cox.net Received: from davidandanne ([68.111.224.107]) by fed1rmmtao04.cox.net (InterMail vM.6.01.04.00 201-2131-117-20041022) with SMTP id <20041215174004.SIBC23615.fed1rmmtao04.cox.net@davidandanne> for ; Wed, 15 Dec 2004 12:40:04 -0500 From: "DaveLeonard" To: "Rotary motors in aircraft" Subject: RE: [FlyRotary] Re: Injectors & EC2 adjustments Date: Wed, 15 Dec 2004 09:40:12 -0800 Message-ID: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_008C_01C4E28A.12EECA60" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_008C_01C4E28A.12EECA60 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Mode 9? Hey! I don't have a mode 9! THAT must be the double secret 'get more power for less fuel and have a smooth idle' mode. :-) Dave Leonard Steve, (assuming you are using the EC2 AND that you are using a proper 3 port fuel pressure regulator which adjusts pressure with manifold pressure) I also assume you are saying that mixture is too rich even though the mixture control is at leanest setting? If you have already adjusted the mixture as lean as possible at low throttle using Mode 1 or 9, you need to do the following: On the ground with airplane restrained, run engine at about 25" Hg MAP. In Mode 3, LEAN the mixture about 3 - 4 steps. Go to low throttle where you were too rich and see if mixture can be made right using Mode 1 or 9. If not, go back to MODE 3 and adjust leaner a couple of steps. Repeat until you can get mixture in proper range at low throttle. After doing this, you may find that mixture is too lean at higher throttle settings. If so, adjust richer where needed using Mode 1 or 9. Make sure you know exactly how the different Modes work. They are not the same. See instructions for details. Change injectors and other hardware only after you are sure the problem can't be solved by adjustments. Tracy (working on automatic program mode for EC2) ------=_NextPart_000_008C_01C4E28A.12EECA60 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Mode 9? Hey! I don't have a mode = 9! =20 THAT must be the double secret 'get more power for less = fuel and=20 have a smooth idle' mode. :-)

Dave=20 Leonard

Steve,

(assuming you are using the EC2 AND that you are using a = proper 3=20 port fuel pressure regulator which adjusts pressure with manifold=20 pressure) I also assume you are saying that mixture is too rich = even=20 though the mixture control is at leanest setting?

If you have already adjusted the mixture as lean as = possible at=20 low throttle using Mode 1 or 9, you need to do the following:

On the ground with airplane restrained, run engine at about 25" = Hg=20 MAP. In Mode 3, LEAN the mixture about 3 - 4 steps.

Go to low throttle where you were too rich and see = if mixture can=20 be made right using Mode 1 or 9. If not, go back = to MODE 3 and=20 adjust leaner a couple of steps.

Repeat until you can get mixture in proper range at low=20 throttle.

After doing this, you may find that mixture is too lean at higher = throttle settings. If so, adjust richer where needed using Mode = 1 or=20 9.

Make sure you know exactly how the different Modes work. = They are=20 not the same. See instructions for details.

Change injectors and other hardware only after you are sure the = problem=20 can't be solved by adjustments.

Tracy (working on automatic program mode for EC2)

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