X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from omr-m01.mx.aol.com ([64.12.143.75] verified) by logan.com (CommuniGate Pro SMTP 6.0.6) with ESMTPS id 6446750 for flyrotary@lancaironline.net; Thu, 29 Aug 2013 11:54:29 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.143.75; envelope-from=ARGOLDMAN@aol.com Received: from mtaomg-ma04.r1000.mx.aol.com (mtaomg-ma04.r1000.mx.aol.com [172.29.41.11]) by omr-m01.mx.aol.com (Outbound Mail Relay) with ESMTP id F0AC4700F0C83 for ; Thu, 29 Aug 2013 11:53:54 -0400 (EDT) Received: from core-dsc005a.r1000.mail.aol.com (core-dsc005.r1000.mail.aol.com [172.29.253.81]) by mtaomg-ma04.r1000.mx.aol.com (OMAG/Core Interface) with ESMTP id C33D2E000082 for ; Thu, 29 Aug 2013 11:53:54 -0400 (EDT) From: ARGOLDMAN@aol.com Full-name: ARGOLDMAN Message-ID: <4a782.588ea52a.3f50c892@aol.com> Date: Thu, 29 Aug 2013 11:53:54 -0400 (EDT) Subject: Re: [FlyRotary] Re: Fuel map scrambled. To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_4a782.588ea52a.3f50c892_boundary" X-Mailer: AOL 9.7 sub 56 X-Originating-IP: [67.184.240.46] x-aol-global-disposition: G DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mx.aol.com; s=20121107; t=1377791634; bh=joF4mqlhZ3YVRjsCoKmVtC6ikfFZWQgW405j05oOeI0=; h=From:To:Subject:Message-ID:Date:MIME-Version:Content-Type; b=fKaTXb+YJK8xmqLVsW+LF3I+MJP9fSMepYcgJwgYicqWXEoW8aGZWW5OI9cu2apLR sYPhORf/tOvX90CYBs61QvVU1rLYp+W5/yqgU2NgJdAsDAEFHhRSOlQEKEXNBpA0v2 /8zsj7IzVB4Fs6eX7GKZzLqKYIhHUqiNc/D0Blfo= x-aol-sid: 3039ac1d290b521f6e924a30 --part1_4a782.588ea52a.3f50c892_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Greetings Tracy, Please send me the below captioned guideline. I think that my installation is clean, but a double(triple) check won't hurt. Gotta keep that -3 running well. Rich Thanks In a message dated 8/22/2013 5:48:51 A.M. Central Daylight Time, rwstracy@gmail.com writes: I've written about this so many times I've lost count. The scrambled map table problem is ALWAYS caused by electrical noise spikes. The root cause of those is poor electrical system layout including ground distribution. You can sometimes fix the problem by addressing the individual sources (coil power inputs, starter solenoid, etc) but its also important to have a proper architecture to begin with. I have a two page guideline for this in the installation guide for last several years but it's too many bytes to post here. Email me a request and I'll send it direct if you want a copy and its not in your installation guide already. Tracy Crook Sent from my iPad On Aug 21, 2013, at 22:09, _hoursaway1@comcast.net_ (mailto:hoursaway1@comcast.net) wrote: 1st..... am now on the ground safe & sound, no damage normal landing. The story goes....... Level at 2500' above Mason Jewett Field, ( hazy evening, aprox. 7:30 pm ) on the down wind abeam of the end of the runway, 4600 rpm, ? MAP, 125 MPH ind., 3rd circle around the patch getting ready to put in full cruise pitch on prop to do a full throttle numbers gathering. Then the eng. started running very poorly, missing, stumbling hard, destict loss of power, tryed to descend & come around to land but am high & hot with ( RV's need air brakes ) eng. smoothed out, chose a sweet spot & climbed out to go around,,, low but climbing, ran smooth 4000 rpm, landed ok. Before shutdown, checked fuel map bars for EC2 on EM2, some in the middle some at the bottom,,,Lean,,, why did the fuel map scramble suddenly, steady cruise flight, made no changes at that time? At the airport by 6:30, pull plane from hanger to do two tests tonight, 1st. run eng. at low power/idle like sitting in line for takeoff from Osh or ?, how long can we stay running without getting to hot, 18 min. coolant 205 F, oil 175 F, ok that's good enough for me lets go fly & do the prop full cruise pitch test run. That was the start of the evening, ended differently than I would have liked. But nothing bent. Did not reset EC2 yet, am going to start eng. & check to see if computer B runs ok, did not get a chance to throw that switch, when I found the sweet spot I changed nothing, just came around & landed. What is the fix for this anomaly?? David R Cook RV6A Rotary = --part1_4a782.588ea52a.3f50c892_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Greetings Tracy,
 
Please send me the below captioned guideline.
 
I think that my installation is clean, but a double(triple) check won'= t=20 hurt. Gotta keep that -3 running well.
 
Rich
 
Thanks 
In a message dated 8/22/2013 5:48:51 A.M. Central Daylight Time,=20 rwstracy@gmail.com writes:
=
I've written about this so many times I've lost count.   The=20 scrambled map table problem is ALWAYS caused by electrical noise spikes.= =20  The root cause of those is poor electrical system layout including= =20 ground distribution.  You can sometimes fix the problem by addressin= g the=20 individual sources (coil power inputs, starter solenoid, etc) but its als= o=20 important to have a proper architecture to begin with.  

I have a two page guideline for this in the installation guide for l= ast=20 several years but it's too many bytes to post here.  Email me a requ= est=20 and I'll send it direct if you want a copy and its not in your=20  installation guide already.

Tracy Crook

Sent from my iPad

On Aug 21, 2013, at 22:09, hoursaway1@comcast.net=20 wrote:

1st.= .... am=20 now on the ground safe & sound, no damage normal landing.  &nb= sp;=20 The story goes....... Level at 2500' above Mason Jewett Field,  (&= nbsp;=20 hazy evening, aprox. 7:30 pm  )  on the down wind abeam of th= e end=20 of the runway,   4600 rpm,  ? MAP,  125 MPH  ind.,&= nbsp;=20 3rd circle around the patch getting ready to put in full cruise pitch o= n=20 prop to do a full throttle numbers gathering.  Then the eng. start= ed=20 running very poorly,  missing, stumbling hard, destict loss of=20 power,  tryed to descend & come around  to land but am hi= gh=20 & hot with  (  RV's need air brakes )  eng. smoothed= out,=20 chose a sweet spot & climbed out to go around,,, low  but=20 climbing,  ran smooth 4000 rpm,  landed ok.  Before=20 shutdown,  checked fuel map bars for EC2  on EM2,  some = in=20 the middle some at the bottom,,,Lean,,, why did the fuel map scramble= =20 suddenly,  steady cruise flight, made no changes at that time?&nbs= p; At=20 the airport by 6:30,  pull plane from hanger to do two tests tonig= ht,=20 1st. run eng. at low power/idle like sitting in line for takeoff from O= sh or=20 ?,  how long can we stay running without getting to hot, 18 min.= =20 coolant 205 F,  oil 175 F,  ok that's good enough for me lets= go=20 fly & do the prop full cruise pitch test run.  That was the st= art=20 of the evening, ended differently than I would have liked.  But no= thing=20 bent.   Did not reset EC2  yet, am going to start eng. & = check=20 to see if computer B runs ok, did not get a chance to throw that switch= ,=20 when I found the sweet spot I changed nothing, just came around &= =20 landed.  What is the fix for this anomaly??=20             = ;      =20 David R Cook  RV6A =20 Rotary
=3D
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