X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao103.cox.net ([68.230.241.43] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3742247 for flyrotary@lancaironline.net; Wed, 01 Jul 2009 23:54:18 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.43; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo01.cox.net ([70.169.32.71]) by fed1rmmtao103.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20090702035252.SGRW2915.fed1rmmtao103.cox.net@fed1rmimpo01.cox.net> for ; Wed, 1 Jul 2009 23:52:52 -0400 Received: from wills ([68.105.87.229]) by fed1rmimpo01.cox.net with bizsmtp id Arsp1c00H4wtUdQ03rsr27; Wed, 01 Jul 2009 23:52:51 -0400 X-VR-Score: -100.00 X-Authority-Analysis: v=1.0 c=1 a=JqIssJquC0YA:10 a=Ia-xEzejAAAA:8 a=wPw3oFRr3OuQ2sVxD9IA:9 a=DaYALS6obvUCh1WBBG0A:7 a=tRDZ8L4XzalA27lUUzUSERMmQUMA:4 a=EzXvWhQp4_cA:10 a=n00NMjx5Eu5shO-0:21 a=gkqb1k6gN8wb2i0s:21 a=SSmOFEACAAAA:8 a=HUWpfHGTr8nVxb0ZqKUA:9 a=2CnAEdqkm98gGU9GppoA:7 a=_UnSOTc7AVDIGoO2hXCfNCf3w48A:4 a=FQWi5HrFZ4NJB0G8:21 a=Tc60HhgPDOlP8J82:21 X-CM-Score: 0.00 Message-ID: <8F106C2EA62F4944B67280F57D3CDDCD@wills> From: "Mike Wills" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: frustrating couple of days Date: Wed, 1 Jul 2009 20:52:50 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_006E_01C9FA8D.E559F360" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 This is a multi-part message in MIME format. ------=_NextPart_000_006E_01C9FA8D.E559F360 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Steve, When you first mentioned on the forum that you had a way to log data I = asked if you would make it available. So you bet I'm interested. Need me = to send you a check to cover postage? Mike Wills RV-4 N144MW ----- Original Message -----=20 From: Steven Boese=20 To: Rotary motors in aircraft=20 Sent: Tuesday, June 30, 2009 9:39 PM Subject: [FlyRotary] Re: frustrating couple of days Mike, =20 I have developed a system where it is possible to observe and record = once per second about 20 parameters that the EC2 is using. It has = proven useful to me to understand the workings of the EC2 and may be = useful in diagnosing what is happening with your system. It requires = either a laptop with a serial interface or a USB to serial adapter, or = an IPAQ with a serial interface. A voltage level converter which = converts the 5 V EC2 signals to RS232 levels and costs about $20 is also = required. If the EC2 is accessible and a 1-inch long connector can be = inserted between the EC2 and the existing connector, no wiring changes = are required. If you are interested in trying this system, let me know, = and I'll send you a CD with the software and instructions. =20 =20 Steve Boese =20 =20 -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Mike Wills Sent: Tuesday, June 30, 2009 10:10 PM To: Rotary motors in aircraft Subject: [FlyRotary] frustrating couple of days =20 I havent flown my RV since a couple of cases of lost data in the EC2 = back in february. Spent the last few months making a bunch of mods, some = suggested by Tracy, others were things that I thought might increase = long term reliability. Also had to fix leaking fuel tanks in the ensuing = period. =20 Been working up toward renewing flight testing. Engine has been = running really well for the last few months. Thought that the problem = was cured, though not clear how. Then on saturday found that once again = my B controller had lost all data. Engine wouldnt run at any throttle = setting on B. Restored the B controller by copying A > B. =20 Last night after work ground ran the engine for about 30 minutes at = various throttle settings and it ran as good as always. Also ran fine on = the B controller. =20 Tonight after work I fired it up. Ran fine initially. After about 15 = minutes noted some minor surging at a couple of throttle settings below = 2000 RPM. Also noticed that in this RPM range where the mixture had = previously been fine, my mixture monitor is off the scale lean. Slowly = got worse, to the point that it wouldnt idle at what was previously a = solid 1350RPM. Couldnt get it to run at all below 1500, everything = between 1500 and about 3000 RPM pretty rough. Everything over 3000 is = fine. No idea what caused this change. I put the airplane away and = walked away in disgust. I'm back to where I was a year ago and I'm just = about fed up with this thing. =20 Mike Wills RV-4 N144MW ------=_NextPart_000_006E_01C9FA8D.E559F360 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Steve,
 
 When you first mentioned on the = forum that=20 you had a way to log data I asked if you would make it available. So you = bet I'm=20 interested. Need me to send you a check to cover postage?
 
Mike Wills
RV-4 N144MW
----- Original Message -----
From:=20 Steven = Boese
Sent: Tuesday, June 30, 2009 = 9:39=20 PM
Subject: [FlyRotary] Re: = frustrating=20 couple of days

Mike,

 

I have = developed a=20 system where it is possible to observe and record once per second = about 20=20 parameters that the EC2 is using. =20 It has proven useful to me to understand the workings of the = EC2 and=20 may be useful in diagnosing what is happening with your system.  It requires either a laptop = with a=20 serial interface or a USB to serial adapter, or an IPAQ with a serial=20 interface.  A voltage = level=20 converter which converts the 5 V EC2 signals to RS232 levels and costs = about=20 $20 is also required.  = If the EC2=20 is accessible and a 1-inch long connector can be inserted between the = EC2 and=20 the existing connector, no wiring changes are required.  If you are interested in = trying this=20 system, let me know, and I=92ll send you a CD with the software and=20 instructions. =20

 

Steve Boese

  

 

-----Original=20 Message-----
From: = Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Mike = Wills
Sent: Tuesday, June 30, 2009 = 10:10=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 frustrating couple of days

 

I havent flown my RV = since a=20 couple of cases of lost data in the EC2 back in february. Spent the = last few=20 months making a bunch of mods, some suggested by Tracy, others were = things=20 that I thought might increase long term reliability. Also had to fix = leaking=20 fuel tanks in the ensuing = period.

 

Been working up toward = renewing=20 flight testing. Engine has been running really well for the last few = months.=20 Thought that the problem was cured, though not clear how. Then on = saturday found that once again my B controller had lost all data. = Engine=20 wouldnt run at any throttle setting on B. Restored the B controller by = copying=20 A > B.

 

Last night after work = ground ran=20 the engine for about 30 minutes at various throttle settings and it = ran as=20 good as always. Also ran fine on the B=20 controller.

 

Tonight after work I = fired it up.=20 Ran fine initially. After about 15 minutes noted some minor surging at = a=20 couple of throttle settings below 2000 RPM. Also noticed that in this = RPM=20 range where the mixture had previously been fine, my mixture monitor = is off=20 the scale lean. Slowly got worse, to the point that it wouldnt = idle at=20 what was previously a solid 1350RPM. Couldnt get it to run at all = below 1500,=20 everything between 1500 and about 3000 RPM pretty rough. Everything = over 3000=20 is fine. No idea what caused this change. I put the airplane away and = walked=20 away in disgust. I'm back to where I was a year ago and I'm just about = fed up=20 with this thing.

 

Mike=20 Wills

RV-4=20 = N144MW

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