Return-Path: Received: from imf17aec.mail.bellsouth.net ([205.152.59.65] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 572815 for flyrotary@lancaironline.net; Sat, 18 Dec 2004 23:22:05 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.65; envelope-from=sqpilot@bellsouth.net Received: from paul52u7f5qyav ([209.214.44.195]) by imf17aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with SMTP id <20041219042133.OPEW2402.imf17aec.mail.bellsouth.net@paul52u7f5qyav> for ; Sat, 18 Dec 2004 23:21:33 -0500 Message-ID: <00b901c4e582$378fd9e0$c32cd6d1@paul52u7f5qyav> From: "Paul" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Engine damage thoughts Date: Sat, 18 Dec 2004 22:21:27 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00B6_01C4E54F.EAB6C480" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_00B6_01C4E54F.EAB6C480 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MessageHi, Rusty....I have found that oil analysis really tells all. = They can tell if there is anything in the oil and will even tell you = what it was from (bearings, bronze from bushings, etc, etc). Also found = that cutting into the oil filter will tell you almost everything you = need to know, although not quite as scientific as engine oil analysis. = We used to send our oil to the Fram filter company, and they would send = back a report that would alert you to any potential problems. Just a = thought. Paul Conner ----- Original Message -----=20 From: Russell Duffy=20 To: Rotary motors in aircraft=20 Sent: Saturday, December 18, 2004 11:36 AM Subject: [FlyRotary] Engine damage thoughts Greetings again, I've been thinking more about the engine, and wondering what the = chances are that there's any damage inside. =20 I'm pretty sure I noticed the oil about the instant it started to lose = any significant amount. As soon as the oil started to leak, I pulled = the engine back to idle, and descended ASAP. I'm sure I was doing at = least 2000 fpm from 6000 to 2000 ft, which only accounts for 2 minutes = of time. At 2000 ft, is when I tried to throttle up, and the engine = quit, so no time after that counts. I'm absolutely sure the engine quit = because I had the mixture knob set way lean for cruise, and not because = it seized up. =20 This means that at worst, the engine idled for 2 minutes with no oil = pressure. My guess would be that it was more like 30 seconds or less. = With this in mind, I'm thinking that it's worth doing some ground runs = of the engine to see how healthy it seems. If I can thoroughly run it = on the ground without problems, then I can follow that with about 10 = hours of circling the field. By that point, I can't imagine having any = further concerns. If there was a problem, it would damage the engine = further, but still continue to until I made it to an airport. If I'm = wrong about how much damage there might be, it will get expensive, but = shouldn't be life threatening. =20 Many of you have a lot more experience with these engines than I do. = Does this sound like a reasonable plan? Thanks, Rusty (late for the airport as always) ------=_NextPart_000_00B6_01C4E54F.EAB6C480 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message
Hi, Rusty....I have found that oil = analysis really=20 tells all. They can tell if there is anything in the oil and will even = tell you=20 what it was from (bearings, bronze from bushings, etc, etc).  Also = found=20 that cutting into the oil filter will tell you almost everything you = need to=20 know, although not quite as scientific as engine oil analysis.  We = used to=20 send our oil to the Fram filter company, and they would send back a = report that=20 would alert you to any potential problems.  Just a thought.  = Paul=20 Conner
----- Original Message -----
From:=20 Russell=20 Duffy
Sent: Saturday, December 18, = 2004 11:36=20 AM
Subject: [FlyRotary] Engine = damage=20 thoughts

Greetings=20 again,
 
I've been = thinking more=20 about the engine, and wondering what the chances are that there's any = damage=20 inside. 
 
I'm pretty = sure I noticed=20 the oil about the instant it started to lose any significant = amount.  As=20 soon as the oil started to leak, I pulled the engine back to idle, and = descended ASAP.  I'm sure I was doing at least 2000 fpm from = 6000 to=20 2000 ft, which only accounts for 2 minutes of time.  At 2000 ft, = is when=20 I tried to throttle up, and the engine quit, so no time after that=20 counts.  I'm absolutely sure the engine quit because I had = the=20 mixture knob set way lean for cruise, and not because it seized = up. =20
 
This means = that at worst,=20 the engine idled for 2 minutes with no oil pressure.  My guess = would be=20 that it was more like 30 seconds or less.  With this in mind, I'm = thinking that it's worth doing some ground runs of the engine to see = how=20 healthy it seems.  If I can thoroughly run it on the ground = without=20 problems, then I can follow that with about 10 hours of circling the=20 field.  By that point, I can't imagine having any further = concerns. =20 If there was a problem, it would damage the engine further, but still = continue=20 to until I made it to an airport.  If I'm wrong = about how=20 much damage there might be, it will get expensive, but shouldn't be = life=20 threatening. 
 
Many of you = have a lot=20 more experience with these engines than I do.  Does this sound = like a=20 reasonable plan?
 
Thanks,
Rusty (late = for the=20 airport as always)
 
 
 
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