Return-Path: Received: from mail.tsisp.com ([65.23.108.44] verified) by logan.com (CommuniGate Pro SMTP 4.2.4) with ESMTP-TLS id 454537 for flyrotary@lancaironline.net; Wed, 06 Oct 2004 07:49:49 -0400 Received-SPF: none receiver=logan.com; client-ip=65.23.108.44; envelope-from=prvt_pilot@yahoo.com Received: from stevehome by mail.tsisp.com (Technical Support Inc.) with SMTP id CQA74584 for ; Wed, 06 Oct 2004 07:49:16 -0400 Reply-To: From: "Steve Brooks" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: #$!%@$ temperatures still high Date: Wed, 6 Oct 2004 07:50:37 -0400 Message-ID: <00e701c4ab9a$b3f57de0$6400a8c0@workgroup.com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00E8_01C4AB79.2CE3DDE0" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.6604 (9.0.2911.0) X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 Importance: Normal In-Reply-To: This is a multi-part message in MIME format. ------=_NextPart_000_00E8_01C4AB79.2CE3DDE0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit MessageI flew the Cozy this after noon, and was very disappointed in the temperatures. The OAT was 81, and the coolant read 225 on the temperature gauge, and the oil climbed slowly to 207 peak. The coolant did come down about 10 degrees when I throttled back at pattern altitude, but leveled off there. Sorry it didn't work out this time Steve, but it will, just hang in there. Refresh my memory- which gear ratio do you have, and what rpm's are you seeing in climb? What MAP are you running? [Steve Brooks] I have the 2.17 drive, and I'm seeing about 5300 RPM's in climb. I don't have a MAP gauge, but rather a boost gauge. I could calculate the MAP, but on take off, I'm setting the throttle to 5 lbs of boost, which seems like plenty. Full throttle will produce about 8 lbs of boost, with substantially more power. 1) I seem to be running rich. I turned the fuel pressure down some (30 PSI on my gauge (don't know if it's accurate)). That helped, but running both fuel pumps makes the engine run very rich at full power. Turning off one pump increases power and smoothness. At an idle, 1000-2000 RMS, if I shut off the main fuel pump, the engine smoothes out, and gain a little rpm, before running out of fuel. This may be a dumb question, but why not tune this via the EC-2? [Steve Brooks] I tried that, and have it as lean as it will go on mode 1. I haven't tune it above 4000 RPM's yet. I can't hold the plane still with the brakes, and haven't been in the air long enough to do it there. I may be able to resolve the rich running at high RPM's. Mode 3 tuning doesn't seem to be working. 2) For whatever reason the "coil test" has stopped working. I used to be able to go to the "B" controller, and do the coil test to check the leading or trailing coils. That doesn't work, and if I turn it to off (I'm using the ignition switch), it keeps on running. Used to kill the engine before. I'm not sure what this is, and haven't really done any testing yet. First guess would be a fatigued connection somewhere. [Steve Brooks] Could be, I need to check it out with the voltmeter. Steve Brooks (praying for cold weather) I've heard that praying can keep you out of REALLY hot weather :-) Rusty (can only pick on one Cozy driver at a time) - Lucky me. Steve Brooks ------=_NextPart_000_00E8_01C4AB79.2CE3DDE0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
I flew the Cozy this after noon, and was very = disappointed in=20 the temperatures.  The OAT was 81, and the coolant read 225 on the=20 temperature gauge, and the oil climbed slowly to 207 peak.  The = coolant did=20 come down about 10 degrees when I throttled back at pattern altitude, = but=20 leveled off there.
Sorry = it didn't work=20 out this time Steve, but it will, just hang in = there.   =20 Refresh my memory- which gear ratio do you have, and what rpm's = are you=20 seeing in climb?  What MAP are you running?  =


[Steve=20 Brooks] I have the 2.17 drive, and I'm seeing about 5300 RPM's in = climb. =20 I don't have a MAP gauge, but rather a boost gauge.  I could = calculate=20 the MAP, but on take off, I'm setting the throttle to 5 lbs of boost, = which=20 seems like plenty.  Full throttle will produce about 8 lbs of = boost, with=20 substantially more power. 

 

 1) I seem to be = running=20 rich.  I turned the fuel pressure down some (30 PSI on my gauge = (don't=20 know if it's accurate)). That helped, but running both fuel pumps = makes the=20 engine run very rich at full power.  Turning off one pump = increases power=20 and smoothness.  At an idle, 1000-2000 RMS, if I shut off the = main fuel=20 pump, the engine smoothes out, and gain a little rpm, before running = out of=20 fuel.

This may be = a dumb=20 question, but why not tune this via the EC-2? 

[Steve Brooks]  I tried that, and have = it as lean as=20 it will go on mode 1.  I haven't tune it above 4000 RPM's = yet.  I=20 can't hold the plane still with the brakes, and haven't been in the = air long=20 enough to do it there.  I may be able to resolve the rich = running at=20 high RPM's.  Mode 3 tuning doesn't seem to be=20 working. 

 
2= ) For=20 whatever reason the "coil test" has stopped working.  I used to = be able=20 to go to the "B" controller, and do the coil test to check the leading = or=20 trailing coils.  That doesn't work, and if I turn it to off (I'm = using=20 the ignition switch), it keeps on running.  Used to kill the = engine=20 before. I'm not sure what this is, and haven't really done any testing = yet.

First guess would be a = fatigued=20 connection somewhere. 

[Steve=20 Brooks]   Could be, I need to check it out with the=20 voltmeter.  

 
Steve Brooks = (praying for=20 cold weather)

I've heard that praying = can keep you=20 out of REALLY hot weather :-)

Rusty = (can only pick on=20 one Cozy driver at a time) - Lucky=20 me.
 
Steve = Brooks  
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