X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from fed1rmmtao101.cox.net ([68.230.241.45] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3740966 for flyrotary@lancaironline.net; Wed, 01 Jul 2009 00:10:15 -0400 Received-SPF: none receiver=logan.com; client-ip=68.230.241.45; envelope-from=rv-4mike@cox.net Received: from fed1rmimpo03.cox.net ([70.169.32.75]) by fed1rmmtao101.cox.net (InterMail vM.7.08.02.01 201-2186-121-102-20070209) with ESMTP id <20090701040936.QTUI17670.fed1rmmtao101.cox.net@fed1rmimpo03.cox.net> for ; Wed, 1 Jul 2009 00:09:36 -0400 Received: from wills ([68.105.87.229]) by fed1rmimpo03.cox.net with bizsmtp id AU9b1c0074wtUdQ04U9dxN; Wed, 01 Jul 2009 00:09:37 -0400 X-VR-Score: -60.00 X-Authority-Analysis: v=1.0 c=1 a=8NIxr1T5lsSz3ldkvLcA:9 a=H0SFeLjX78YKh88COo0A:7 a=1VV8pyBSIX6fjmDwirdCkhDuv0sA:4 a=k4PGCMH9z_QrGLSxisEA:9 a=gN8TdILao9Xf34RrzDoA:7 a=IJ6amOBEL2aSCyChgvvu2olVT3QA:4 X-CM-Score: 0.00 Message-ID: <14E8F42078604D30BD3F182086AE99ED@wills> From: "Mike Wills" To: "Rotary motors in aircraft" Subject: frustrating couple of days Date: Tue, 30 Jun 2009 21:09:35 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0055_01C9F9C7.12526E50" 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_0055_01C9F9C7.12526E50 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable 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. 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. 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. 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. Mike Wills RV-4 N144MW ------=_NextPart_000_0055_01C9F9C7.12526E50 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

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

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

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

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

Mike Wills

RV-4 N144MW

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