Return-Path: <13brv3@bellsouth.net> Received: from imf18aec.mail.bellsouth.net ([205.152.59.66] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 572239 for flyrotary@lancaironline.net; Sat, 18 Dec 2004 12:37:05 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.66; envelope-from=13brv3@bellsouth.net Received: from rd ([65.6.194.9]) by imf18aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20041218173636.WFUL2443.imf18aec.mail.bellsouth.net@rd> for ; Sat, 18 Dec 2004 12:36:36 -0500 From: "Russell Duffy" <13brv3@bellsouth.net> To: "Flyrotary List" Subject: Engine damage thoughts Date: Sat, 18 Dec 2004 11:36:51 -0600 Message-ID: <000001c4e528$2a3a1a80$6101a8c0@rd> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0001_01C4E4F5.DF9FAA80" X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.6626 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 This is a multi-part message in MIME format. ------=_NextPart_000_0001_01C4E4F5.DF9FAA80 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Greetings again, =20 I've been thinking more about the engine, and wondering what the chances = are that there's any damage inside. =20 =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 =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 =20 Many of you have a lot more experience with these engines than I do. = Does this sound like a reasonable plan? =20 Thanks, Rusty (late for the airport as always) =20 =20 =20 ------=_NextPart_000_0001_01C4E4F5.DF9FAA80 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable Message
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=20 ASAP.  I'm sure I was doing at least 2000 fpm from 6000 to = 2000 ft,=20 which only accounts for 2 minutes of time.  At 2000 ft, is when I = tried to=20 throttle up, and the engine quit, so no time after that counts.  = I'm=20 absolutely sure the engine quit because I had the mixture knob set = way lean=20 for cruise, and not because it seized up. 
 
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=20 that it's worth doing some ground runs of the engine to see how healthy = it=20 seems.  If I can thoroughly run it on the ground without problems, = then I=20 can follow that with about 10 hours of circling the field.  By that = point,=20 I can't imagine having any further concerns.  If there was a = problem, it=20 would damage the engine further, but still continue to until I = made it=20 to an airport.  If I'm wrong about how much damage there might = be, it=20 will get expensive, but shouldn't be life threatening. =20
 
Many of you = have a lot more=20 experience with these engines than I do.  Does this sound like a = reasonable=20 plan?
 
Thanks,
Rusty (late for = the airport=20 as always)
 
 
 
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