X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imr-ma05.mx.aol.com ([64.12.100.31] verified) by logan.com (CommuniGate Pro SMTP 5.4.0) with ESMTP id 5053756 for flyrotary@lancaironline.net; Sat, 16 Jul 2011 10:13:07 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.100.31; envelope-from=Bktrub@aol.com Received: from imo-da02.mx.aol.com (imo-da02.mx.aol.com [205.188.169.200]) by imr-ma05.mx.aol.com (8.14.1/8.14.1) with ESMTP id p6GECKQC016452 for ; Sat, 16 Jul 2011 10:12:20 -0400 Received: from Bktrub@aol.com by imo-da02.mx.aol.com (mail_out_v42.9.) id q.10bb.5dd6d22 (55736) for ; Sat, 16 Jul 2011 10:12:15 -0400 (EDT) Received: from smtprly-de01.mx.aol.com (smtprly-de01.mx.aol.com [205.188.249.168]) by cia-md04.mx.aol.com (v129.10) with ESMTP id MAILCIAMD043-b22f4e219c3e2d2; Sat, 16 Jul 2011 10:12:15 -0400 Received: from webmail-d174 (webmail-d174.sim.aol.com [205.188.162.230]) by smtprly-de01.mx.aol.com (v129.10) with ESMTP id MAILSMTPRLYDE014-b22f4e219c3e2d2; Sat, 16 Jul 2011 10:12:14 -0400 References: To: flyrotary@lancaironline.net Subject: Re: [FlyRotary] Re: High speed stumble continues Date: Sat, 16 Jul 2011 10:12:14 -0400 X-AOL-IP: 69.84.254.253 In-Reply-To: X-MB-Message-Source: WebUI MIME-Version: 1.0 From: bktrub@aol.com X-MB-Message-Type: User Content-Type: multipart/alternative; boundary="--------MB_8CE11D97F43DD42_A0C_F02B_webmail-d174.sysops.aol.com" X-Mailer: AOL Webmail 33953-STANDARD Received: from 69.84.254.253 by webmail-d174.sysops.aol.com (205.188.162.230) with HTTP (WebMailUI); Sat, 16 Jul 2011 10:12:14 -0400 Message-Id: <8CE11D97F3CB91F-A0C-6AE6@webmail-d174.sysops.aol.com> X-Spam-Flag:NO X-AOL-SENDER: Bktrub@aol.com ----------MB_8CE11D97F43DD42_A0C_F02B_webmail-d174.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="us-ascii" 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 goin= g to try reversing the way the wires are connected to the crank angle sens= ors. They may be wired incorrectly.=20 Brian Trubee -----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 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 inp= ut 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 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 le= ads, and ran up the engine. No joy- I still get lots of misfiring above 52= 00 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?=20 =20 Also, does the EC@ fire both leading and trailing plugs simultaneously? =20 Brian Trubee Grounded until further notice ----------MB_8CE11D97F43DD42_A0C_F02B_webmail-d174.sysops.aol.com Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset="us-ascii"
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 option= s. I am going to try reversing the way the wires are connected to the cran= k 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 pl= ugs 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 developme= nt 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 igntio= n leads, and ran up the engine. No joy- I still get lots of misfiring abov= e 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 qu= estion is- is polarity a possible issue with hall effect sensors?
 
Also, does the EC@ fire both leading and trailing plugs simultaneousl= y?
 
Brian Trubee
Grounded until further notice


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