X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail-iw0-f180.google.com ([209.85.214.180] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTPS id 5054704 for flyrotary@lancaironline.net; Sun, 17 Jul 2011 15:32:03 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.214.180; envelope-from=rwstracy@gmail.com Received: by iwn9 with SMTP id 9so2318254iwn.25 for ; Sun, 17 Jul 2011 12:31:28 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=subject:references:from:content-type:x-mailer:in-reply-to :message-id:date:to:content-transfer-encoding:mime-version; bh=JGNiL00Bh7yGDOR3Dr1jNXUMicPH/xbVAyVOUEADtBY=; b=Gh9cohxltyA0LqMf20snCvuGYj53VM1jxngIgVgeTKZCj1nxs0NZgKR5M+K/mMm8d8 K93fYiOiFjkBGDtrXS/BiC5j5a60JKwYVQgmdjYWGArfacFznAhSZj1FoYuv0o6QA5cC mgvOUKI9G45YlDsLRY61ujHj4i9oj6ubywwbc= Received: by 10.43.47.7 with SMTP id uq7mr402901icb.118.1310931088825; Sun, 17 Jul 2011 12:31:28 -0700 (PDT) Return-Path: Received: from [10.0.1.3] (99-197-145-127.cust.wildblue.net [99.197.145.127]) by mx.google.com with ESMTPS id hq1sm3997744icc.2.2011.07.17.12.31.20 (version=TLSv1/SSLv3 cipher=OTHER); Sun, 17 Jul 2011 12:31:27 -0700 (PDT) Subject: Re: [FlyRotary] Re: High speed stumble continues References: From: Tracy Content-Type: multipart/alternative; boundary=Apple-Mail-18--236083301 X-Mailer: iPad Mail (8F191) In-Reply-To: Message-Id: <8317B04C-3978-4B6A-8ED4-CEA11B215B6F@gmail.com> Date: Sun, 17 Jul 2011 15:31:07 -0400 To: Rotary motors in aircraft Content-Transfer-Encoding: 7bit Mime-Version: 1.0 (iPad Mail 8F191) --Apple-Mail-18--236083301 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii I try to discourage 'blind' testing but I guess it couldn't hurt anything. I= sent the procedure for testing the sensor polarity previously so if at all p= ossible, know what the right way is before hooking stuff up. Tracy Sent from my iPad On Jul 16, 2011, at 10:12 AM, bktrub@aol.com wrote: > Sure, If you have the equipment to record the signals, I might take you up= on it. I have one last thing to try before I am out of options. I am going t= o try reversing the way the wires are connected to the crank angle sensors. T= hey may be wired incorrectly. > =20 > Brian Trubee >=20 >=20 >=20 > -----Original Message----- > From: Steven W. Boese > To: Rotary motors in aircraft > Sent: Fri, Jul 15, 2011 11:07 pm > Subject: [FlyRotary] Re: High speed stumble continues >=20 > Brian, > =20 > My EC2's fire the leading and trailing plugs simultaneously. Have you tri= ed disabling the leading or trailing coils when the problem is occurring? > =20 > Since you are able to induce the problem on the ground, have you given any= thought to the offer of sending you the equipment to record the EC2's input= and output signals? This might indicate the nature of the problem and thus= facilitate the development of a solution. > =20 > =20 > Steve Boese > RV6A, 1986 13B NA, RD1A, EC2 > =20 > From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of= bktrub@aol.com [bktrub@aol.com] > Sent: Wednesday, July 13, 2011 8:20 PM > To: Rotary motors in aircraft > Subject: [FlyRotary] High speed stumble continues >=20 > I just installed the Magnecor wires, put on a smaller prop, re-routed the C= AS sensor wires to a location further away from the secondary igntion leads,= and ran up the engine. No joy- I still get lots of misfiring above 5200 RPM= . Wondering if the issue might be with my EC2. > I still have questions about how my CAS is wired, on the 13BREW the CAS is= next to the trigger wheel, it consists of two hall effect sensors, one to c= ount every 30 degress,and one that counts every 360 degrees. The EC2 has thr= ee wires going out to the CAS- one to provide voltage to both sensors, and o= ne wire each (#22 & #23 ) to read each sensor. My question is- is polarity= a possible issue with hall effect sensors? > =20 > Also, does the EC@ fire both leading and trailing plugs simultaneously? > =20 > Brian Trubee > Grounded until further notice >=20 >=20 --Apple-Mail-18--236083301 Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=utf-8
I try to discourage 'blind' testing but I guess it couldn't hurt anything.  I sent the procedure for testing the sensor polarity previously so if at all possible, know what the right way is before hooking stuff up.

Tracy

Sent from my iPad

On Jul 16, 2011, at 10:12 AM, bktrub@aol.com wrote:

Sure, If you have the equipment to record the signals, I might take you up on it. I have one last thing to try before I am out of options. I am going to try reversing the way the wires are connected to the crank angle sensors. They may be wired incorrectly.
 
Brian Trubee



-----Original Message-----
From: Steven W. Boese <SBoese@uwyo.edu>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, Jul 15, 2011 11:07 pm
Subject: [FlyRotary] Re: High speed stumble continues

Brian,
 
My EC2's fire the leading and trailing plugs simultaneously.  Have you tried disabling the leading or trailing coils when the problem is occurring?
 
Since you are able to induce the problem on the ground, have you given any thought to the offer of sending you the equipment to record the EC2's input and output signals?  This might indicate the nature of the problem and thus facilitate the development of a solution.
 
 
Steve Boese
RV6A, 1986 13B NA, RD1A, EC2
   
From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of bktrub@aol.com [bktrub@aol.com]
Sent: Wednesday, July 13, 2011 8:20 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] High speed stumble continues

I just installed the Magnecor wires, put on a smaller prop, re-routed the CAS sensor wires to a location further away from the secondary igntion leads, and ran up the engine. No joy- I still get lots of misfiring above 5200 RPM. Wondering if the issue might be with my EC2.
I still have questions about how my CAS is wired, on the 13BREW the CAS is next to the trigger wheel, it consists of two hall effect sensors, one to count every 30 degress,and one that counts every 360 degrees. The EC2 has three wires going out to the CAS- one to provide voltage to both sensors, and one wire each (#22  &  #23 ) to read each sensor. My question is- is polarity a possible issue with hall effect sensors?
 
Also, does the EC@ fire both leading and trailing plugs simultaneously?
 
Brian Trubee
Grounded until further notice
--Apple-Mail-18--236083301--