X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from hub026-NJ-6.exch026.serverdata.net ([206.225.166.169] verified) by logan.com (CommuniGate Pro SMTP 6.0.6) with ESMTPS id 6437685 for flyrotary@lancaironline.net; Thu, 22 Aug 2013 13:29:32 -0400 Received-SPF: none receiver=logan.com; client-ip=206.225.166.169; envelope-from=jwhaley@datacast.com Received: from MBX026-E1-NJ-6.exch026.domain.local ([10.240.14.56]) by HUB026-NJ-6.exch026.domain.local ([10.240.14.230]) with mapi id 14.03.0123.003; Thu, 22 Aug 2013 10:28:56 -0700 From: Jeff Whaley To: Rotary motors in aircraft Subject: Re: [FlyRotary] Fuel map scarmbled Thread-Topic: Re: [FlyRotary] Fuel map scarmbled Thread-Index: Ac6fXRQMpv5KjFsOSuuTupk56sRheA== Date: Thu, 22 Aug 2013 17:28:56 +0000 Message-ID: <234B758DE9A64449BEB6BB5D1345CA7A35F96FD2@mbx026-e1-nj-6.exch026.domain.local> Accept-Language: en-CA, en-US Content-Language: en-US X-MS-Has-Attach: yes X-MS-TNEF-Correlator: x-originating-ip: [209.87.232.162] Content-Type: multipart/related; boundary="_005_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_"; type="multipart/alternative" MIME-Version: 1.0 --_005_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_ Content-Type: multipart/alternative; boundary="_000_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_" --_000_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_ Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Another low-percentage (1 confirmed) but possible cause is the controller c= oming loose in the PLCC socket. Pop lid off of EC2 (careful not to touch pins) and press gently but firmly= in center of chips - they should NOT move; i.e., fully seated to bottom o= f socket. Jeff From: Tracy Subject: Re: [FlyRotary] Fuel map scrambled. Date: Thu, 22 Aug 2013 06:48:11 -0400 To: Rotary motors in aircraft [Message Header] [Undecoded Message] 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. Y= ou can sometimes fix the problem by addressing the individual sources (coil= power inputs, starter solenoid, etc) but its also important to have a prop= er architecture to begin with. I have a two page guideline for this in the installation guide for last sev= eral 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 guid= e already. Tracy Crook Sent from my iPad On Aug 21, 2013, at 22:09, hoursaway1@comcast.net wrote: 1st..... am now on the ground safe & sound, no damage normal landing. Th= e story goes....... Level at 2500' above Mason Jewett Field, ( hazy eveni= ng, aprox. 7:30 pm ) on the down wind abeam of the end of the runway, 4= 600 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 gatherin= g. Then the eng. started running very poorly, missing, stumbling hard, de= stict 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, la= nded 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 sudd= enly, 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 ca= n 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 wou= ld have liked. But nothing bent. Did not reset EC2 yet, am going to sta= rt 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 arou= nd & landed. What is the fix for this anomaly?? David R= Cook RV6A Rotary This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal= records. Please then delete the original message. Thank you. --_000_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_ Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Another low-percentage (1 confirmed) but possible ca= use is the controller coming loose in the PLCC socket.

Pop lid off of EC2 (careful not to touch pins) and p= ress gently  but firmly in center of chips – they should NOT mov= e;  i.e., fully seated to bottom of socket.

Jeff

 

From:

Tracy <rwstracy@gmail.com>=

Subject:

Re: [FlyRotary] Fuel map scrambled.

Date:

Thu, 22 Aug 2013 06:48:11 -0400<= /p>

To:

Rotary motors in aircraft <flyrotary= @lancaironline.net>

3D"Message

=

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 t= he problem by addressing the individual sources (coil power inputs, starter= solenoid, etc) but its also important to have a proper architecture to beg= in with.  

 

I have a two page guideline for this in= the installation guide for last several years but it's too many bytes to p= ost 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, hour= saway1@comcast.net wrote:

1st..... am now on the ground safe & soun= d, no damage normal landing.    The story goes....... Level at 25= 00' above Mason Jewett Field,  (  hazy evening, aprox. 7:30 pm&nb= sp; )  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 gatherin= g.  Then the eng. started running very poorly,  missing, stumbling hard, destict loss of power,  tryed to descend & come a= round  to land but am high & hot with  (  RV's need air = brakes )  eng. smoothed out, chose a sweet spot & climbed out to g= o 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 sudde= nly,  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, 1= 8 min. coolant 205 F,  oil 175 F,  ok that's good enough for me l= ets go fly & do the prop full cruise pitch test run.  That was the start of the evening, ended differently than I wou= ld 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 ge= t a chance to throw that switch, when I found the sweet spot I changed nothing, just came around & landed.  What is the f= ix for this anomaly??          = ;          David R Cook  = RV6A  Rotary

 

This message, and the documents attached hereto, is intended only for the a= ddressee and may contain privileged or confidential information. Any unauth= orized disclosure is strictly prohibited. If you have received this message= in error, please notify us immediately so that we may correct our internal records. Please then delete the origin= al message. Thank you. --_000_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_-- --_005_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_ Content-Type: image/gif; name="image001.gif" Content-Description: image001.gif Content-Disposition: inline; filename="image001.gif"; size=849; creation-date="Thu, 22 Aug 2013 17:28:56 GMT"; modification-date="Thu, 22 Aug 2013 17:28:56 GMT" Content-ID: Content-Transfer-Encoding: base64 R0lGODdhCgANAPcAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwMDcwKbK8AAAAAAAKgAAVQAAfwAA qgAA1AAqAAAqKgAqVQAqfwAqqgAq1ABVAABVKgBVVQBVfwBVqgBV1AB/AAB/KgB/VQB/fwB/qgB/ 1ACqAACqKgCqVQCqfwCqqgCq1ADUAADUKgDUVQDUfwDUqgDU1CoAACoAKioAVSoAfyoAqioA1Coq ACoqKioqVSoqfyoqqioq1CpVACpVKipVVSpVfypVqipV1Cp/ACp/Kip/VSp/fyp/qip/1CqqACqq KiqqVSqqfyqqqiqq1CrUACrUKirUVSrUfyrUqirU1FUAAFUAKlUAVVUAf1UAqlUA1FUqAFUqKlUq VVUqf1UqqlUq1FVVAFVVKlVVVVVVf1VVqlVV1FV/AFV/KlV/VVV/f1V/qlV/1FWqAFWqKlWqVVWq f1WqqlWq1FXUAFXUKlXUVVXUf1XUqlXU1H8AAH8AKn8AVX8Af38Aqn8A1H8qAH8qKn8qVX8qf38q qn8q1H9VAH9VKn9VVX9Vf39Vqn9V1H9/AH9/Kn9/VX9/f39/qn9/1H+qAH+qKn+qVX+qf3+qqn+q 1H/UAH/UKn/UVX/Uf3/Uqn/U1KoAAKoAKqoAVaoAf6oAqqoA1KoqAKoqKqoqVaoqf6oqqqoq1KpV AKpVKqpVVapVf6pVqqpV1Kp/AKp/Kqp/Vap/f6p/qqp/1KqqAKqqKqqqVaqqf6qqqqqq1KrUAKrU KqrUVarUf6rUqqrU1NQAANQAKtQAVdQAf9QAqtQA1NQqANQqKtQqVdQqf9QqqtQq1NRVANRVKtRV VdRVf9RVqtRV1NR/ANR/KtR/VdR/f9R/qtR/1NSqANSqKtSqVdSqf9SqqtSq1NTUANTUKtTUVdTU f9TUqtTU1AAAAAwMDBkZGSYmJjMzMz8/P0xMTFlZWWZmZnJycn9/f4yMjJmZmaWlpbKysr+/v8zM zNjY2OXl5fLy8v/78KCgpICAgP8AAAD/AP//AAAA//8A/wD//////ywAAAAACgANAAAINgDxCRw4 EAC+fwgTIjT4DwCAAwIXHlSYkKHDhxEZUpTYEONEjRstOoR4ECRFkSQ5bux4saXDgAA7 --_005_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_ Content-Type: image/gif; name="image002.gif" Content-Description: image002.gif Content-Disposition: inline; filename="image002.gif"; size=857; creation-date="Thu, 22 Aug 2013 17:28:56 GMT"; modification-date="Thu, 22 Aug 2013 17:28:56 GMT" Content-ID: Content-Transfer-Encoding: base64 R0lGODdhCgANAPcAAAAAAIAAAACAAICAAAAAgIAAgACAgMDAwMDcwKbK8AAAAAAAKgAAVQAAfwAA qgAA1AAqAAAqKgAqVQAqfwAqqgAq1ABVAABVKgBVVQBVfwBVqgBV1AB/AAB/KgB/VQB/fwB/qgB/ 1ACqAACqKgCqVQCqfwCqqgCq1ADUAADUKgDUVQDUfwDUqgDU1CoAACoAKioAVSoAfyoAqioA1Coq ACoqKioqVSoqfyoqqioq1CpVACpVKipVVSpVfypVqipV1Cp/ACp/Kip/VSp/fyp/qip/1CqqACqq KiqqVSqqfyqqqiqq1CrUACrUKirUVSrUfyrUqirU1FUAAFUAKlUAVVUAf1UAqlUA1FUqAFUqKlUq VVUqf1UqqlUq1FVVAFVVKlVVVVVVf1VVqlVV1FV/AFV/KlV/VVV/f1V/qlV/1FWqAFWqKlWqVVWq f1WqqlWq1FXUAFXUKlXUVVXUf1XUqlXU1H8AAH8AKn8AVX8Af38Aqn8A1H8qAH8qKn8qVX8qf38q qn8q1H9VAH9VKn9VVX9Vf39Vqn9V1H9/AH9/Kn9/VX9/f39/qn9/1H+qAH+qKn+qVX+qf3+qqn+q 1H/UAH/UKn/UVX/Uf3/Uqn/U1KoAAKoAKqoAVaoAf6oAqqoA1KoqAKoqKqoqVaoqf6oqqqoq1KpV AKpVKqpVVapVf6pVqqpV1Kp/AKp/Kqp/Vap/f6p/qqp/1KqqAKqqKqqqVaqqf6qqqqqq1KrUAKrU KqrUVarUf6rUqqrU1NQAANQAKtQAVdQAf9QAqtQA1NQqANQqKtQqVdQqf9QqqtQq1NRVANRVKtRV VdRVf9RVqtRV1NR/ANR/KtR/VdR/f9R/qtR/1NSqANSqKtSqVdSqf9SqqtSq1NTUANTUKtTUVdTU f9TUqtTU1AAAAAwMDBkZGSYmJjMzMz8/P0xMTFlZWWZmZnJycn9/f4yMjJmZmaWlpbKysr+/v8zM zNjY2OXl5fLy8v/78KCgpICAgP8AAAD/AP//AAAA//8A/wD//////ywAAAAACgANAAAIPgDxCRw4 EAC+fwcQKjxgMCHDhAD+GUQYEcDDhhIzVjwIkSJDfA8zQjxYUWRDixVHmnSI0aHCiS5ZAphJs2ZA ADs= --_005_234B758DE9A64449BEB6BB5D1345CA7A35F96FD2mbx026e1nj6exch_--