X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3741073 for flyrotary@lancaironline.net; Wed, 01 Jul 2009 02:39:22 -0400 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from sv1-1.aanet.com.au (sv1-1.per.aanet.com.au [203.24.100.68]) by poplet2.per.eftel.com (Postfix) with ESMTP id F321D173832 for ; Wed, 1 Jul 2009 14:38:42 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by sv1-1.aanet.com.au (Postfix) with SMTP id 98FC7BEC00F for ; Wed, 1 Jul 2009 14:38:40 +0800 (WST) Message-ID: <49FC39D9BA9D4A52BA7385AE2E5A4358@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] frustrating couple of days Date: Wed, 1 Jul 2009 16:38:46 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000F_01C9FA6A.679846C0" 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 X-Antivirus: avast! (VPS 090630-0, 06/30/2009), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_000F_01C9FA6A.679846C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Mike is it low battery power? George (down under) 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_000F_01C9FA6A.679846C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Mike is it low battery = power?
George (down under)
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=20 bunch of mods, some suggested by Tracy, others were things that I = thought=20 might increase long term reliability. Also had to fix leaking fuel=20 tanks in the 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.=20 Also 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=20 the 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,=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 Wills
RV-4 = N144MW
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