Return-Path: Received: from fed1mtao03.cox.net ([68.6.19.242] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 3051029 for flyrotary@lancaironline.net; Sun, 29 Feb 2004 12:27:22 -0500 Received: from Leonards ([68.111.228.182]) by fed1mtao03.cox.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040229172722.QOEB6230.fed1mtao03.cox.net@Leonards> for ; Sun, 29 Feb 2004 12:27:22 -0500 From: "David Leonard" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: 13B - No start problem Date: Sun, 29 Feb 2004 09:28:06 -0800 Message-ID: <000201c3fee9$64d0dab0$b6e46f44@Leonards> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0003_01C3FEA6.56AD9AB0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.3416 Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 This is a multi-part message in MIME format. ------=_NextPart_000_0003_01C3FEA6.56AD9AB0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Thanks for the input Ed. I think you are right and that I am in denial. Tracy, are you out there? David Leonard The Rotary Roster: http://members.aol.com/_ht_a/rotaryroster/index.html David, sounds like you on the trail of the problem, HOWEVER, I would not stop yet. Here's my view of the problem. Yes, the EC2 will draw some current if the power to the injectors are on, but it should be on the order of milliamps. If you are using the Peak and Hold (low impedance) injectors they require around 4 amps to unseat the pentle and inject fuel. The high impedance injectors require around 2 amps. The EC2 power requirements with the engine off is minimal - in the milliamp range. I could be wrong, but to the best of my knowledge, the EC2 should not be drawing enough current to unseat the injectors unless the engine is running. Your diagnoses appears reasonable except the EC2 just does not normally draw anywhere near sufficient current to unseat the injectors. I can turn my injectors on - leaving the EC2 switch off - there is an initial squirt of fuel due to the transit phenomena I mentioned, but after that the injectors stay seated. Yes, the EC2 program light is on showing the EC2 is drawing power through the injector power circuit the same as yours. However, your finding sounds significant. I would not hesitate to query Tracy about what you have found, it does not sound normal to me. Ed ------=_NextPart_000_0003_01C3FEA6.56AD9AB0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message

Thanks for the input Ed.  I = think you are right and that I am in denial.  Tracy, are you out there?

 

David Leonard

The Rotary = Roster:

http://memb= ers.aol.com/_ht_a/rotaryroster/index.html

 

David, sounds like you on the trail of the problem, = HOWEVER, I would not stop yet.  Here's my view of the problem.  Yes, = the EC2 will draw some current if the power to the injectors are on, but it = should be on the order of milliamps.  If you are using the Peak and Hold (low impedance) injectors they require around 4 amps to unseat the pentle and = inject fuel. The high impedance injectors require around 2 amps.  The = EC2 power requirements with the engine off is minimal - in the milliamp range.  I could be wrong, but to the best of my = knowledge,  the EC2 should not be drawing enough current to unseat the = injectors unless the engine is running.

 

Your diagnoses appears reasonable except the EC2 just = does not normally draw anywhere near sufficient current to unseat the injectors.  I = can turn my injectors on - leaving the EC2 switch off - there is an initial = squirt of fuel due to the transit phenomena I mentioned, but after that the = injectors stay seated.  Yes, the EC2 program light is on showing the EC2 is = drawing power through the injector power circuit the same as yours.  =

 

However, your finding sounds significant.  I = would not hesitate to query Tracy about what you have found, it does not sound = normal to me.

 

Ed

 

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