X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 03 Mar 2008 20:39:54 -0500 Message-ID: X-Original-Return-Path: Received: from elasmtp-spurfowl.atl.sa.earthlink.net ([209.86.89.66] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTP id 2774763 for lml@lancaironline.net; Mon, 03 Mar 2008 09:26:08 -0500 Received-SPF: none receiver=logan.com; client-ip=209.86.89.66; envelope-from=douglasbrunner@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=O/pqcEOGtnwGex5CaJIQDtlPsNrXldUMvXG5oygvUoBJvzdS5rIqBIc+9yzQsAls; h=Received:Message-ID:From:To:References:Subject:Date:MIME-Version:Content-Type:X-Priority:X-MSMail-Priority:X-Mailer:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [70.118.255.155] (helo=DFWK3391) by elasmtp-spurfowl.atl.sa.earthlink.net with asmtp (Exim 4.34) id 1JWBbd-00007c-Qr for lml@lancaironline.net; Mon, 03 Mar 2008 09:25:30 -0500 X-Original-Message-ID: <001e01c87d3a$75afcd90$0302a8c0@DFWK3391> From: "Douglas Brunner" X-Original-To: "Lancair Mailing List" References: Subject: Re: [LML] Oil Cooler IO-550 Legacy X-Original-Date: Mon, 3 Mar 2008 09:25:41 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001B_01C87D10.8C996130" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3198 X-ELNK-Trace: ad85a799c4f5de37c2eb1477c196d22294f5150ab1c16ac04d04932202c5b85b2b058538c82b0c2359526cf54eedbe9b350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 70.118.255.155 This is a multi-part message in MIME format. ------=_NextPart_000_001B_01C87D10.8C996130 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable Dennis, Think I will also be installing an oil cooler door at annual this fall. = Plane is currently being painted and won't be done until April - I = probably won't have any low oil temps in the summer. =20 Doug ----- Original Message -----=20 From: Dennis Johnson=20 To: lml@lancaironline.net=20 Sent: Sunday, March 02, 2008 9:46 PM Subject: [LML] Oil Cooler IO-550 Legacy I recently posted a photo of the cracked oil cooler box on my IO-550 = Legacy. The reason I had the box out was that I was adding the oil = cooler door. Like Douglas, I did not install the oil cooler door when I = built my Legacy. First flight was a year ago and my oil temperatures = were fine during the summer, but with winter weather, the oil was too = cool. On a recent flight the oil was down to 130=B0F. Since I was = doing my first annual inspection, I figured it was the right time to = install the oil cooler door. That involved removing the oil cooler box, which I needed to do anyway = because of the crack, adding a piano hinge and the door, and installing = the control cable in the cockpit. I work pretty slowly and spent the = better part of two days doing this. =20 By the way, the TCM shop manual for the IO-550 specifies 170=B0F as = the minimum oil temperature for cruise. I don't know, but I think that = is based on heating the oil enough to drive off water, which enters the = oil as a product of the combustion process, and not on anything related = to the lubricating property of the oil. (TCM specifies that you can run = 100% power with oil temperature of only 100=B0F on takeoff, so 100=B0F = oil must provide adequate lubrication.) Dennis Johnson Legacy, just completed first annual inspection ------=_NextPart_000_001B_01C87D10.8C996130 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable
Dennis,
 
Think I will also be installing an oil = cooler door=20 at annual this fall.  Plane is currently being painted and won't be = done=20 until April - I probably won't have any low oil temps in the = summer. =20
 
Doug
----- Original Message -----
From:=20 Dennis=20 Johnson
Sent: Sunday, March 02, 2008 = 9:46=20 PM
Subject: [LML] Oil Cooler = IO-550=20 Legacy

I recently posted a photo of the cracked oil cooler box on my = IO-550=20 Legacy.  The reason I had the box out was that I was adding = the oil=20 cooler door.  Like Douglas, I did not install the oil cooler door = when I=20 built my Legacy.  First flight was a year ago and my oil = temperatures=20 were fine during the summer, but with winter weather, the oil was too=20 cool.  On a recent flight the oil was down to 130=B0F.  = Since I=20 was doing my first annual inspection, I figured it was the right time = to=20 install the oil cooler door.
 
That involved removing the oil cooler box, which I needed to do = anyway=20 because of the crack, adding a piano hinge and the door, and = installing the=20 control cable in the cockpit.  I work pretty slowly and spent the = better=20 part of two days doing this. 
 
By the way, the TCM shop manual for the IO-550 specifies 170=B0F = as the=20 minimum oil temperature for cruise.  I don't know, but I = think=20 that is based on heating the oil enough to drive off water, which = enters the=20 oil as a product of the combustion process, and not on anything = related=20 to the lubricating property of the oil.  (TCM specifies that you = can run=20 100% power with oil temperature of only 100=B0F on takeoff, so = 100=B0F oil=20 must provide adequate lubrication.)
 
Dennis Johnson
Legacy, just completed first annual inspection
 
 
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