X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 10 Jul 2007 11:39:42 -0400 Message-ID: X-Original-Return-Path: Received: from smtp0.av-mx.com ([137.118.16.56] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2168268 for lml@lancaironline.net; Tue, 10 Jul 2007 00:25:40 -0400 Received-SPF: pass receiver=logan.com; client-ip=137.118.16.56; envelope-from=pinetownd@volcano.net Received: from DennisDell (unknown [65.172.208.48]) (Authenticated sender: pinetownd@volcano.net) by smtp0.av-mx.com (Postfix) with ESMTP id 6F9EA1BF439 for ; Tue, 10 Jul 2007 00:25:00 -0400 (EDT) X-Original-Message-ID: <000e01c7c2aa$4711b480$6601a8c0@DennisDell> From: "Dennis Johnson" X-Original-To: "Lancair Mailing List" Subject: Legacy Oil Temp X-Original-Date: Mon, 9 Jul 2007 21:24:58 -0700 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_000B_01C7C26F.99D9E1A0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3138 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.3138 This is a multi-part message in MIME format. ------=_NextPart_000_000B_01C7C26F.99D9E1A0 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable I did the first "hot weather" flight in my Legacy last week. Ambient = temperature at the airport was in the low nineties, although my OAT was = close to 100=B0 while taxiing out. I believe the temperature sensor, = which is on the underside of the right wingtip, was picking up heat = radiating off the hot asphalt and therefore reading high. Oil temperature was 161=B0F on takeoff. I climbed at 160 knots and = leveled off at 8,500 feet. The oil temperature peaked at 202=B0F at = about the time I leveled off and gradually decreased to 180=B0F in = cruise. CHT #2, my hottest cylinder, peaked at 385=B0F during the climb = at about 1,260=B0F EGT. I did not install an oil cooler door. That's been fine so far, but I = may have a problem during the winter keeping the oil warm enough. We'll = see. I have a Performance Engines IO-550 with 8.7:1 pistons. I'm offering the information as a data point in the discussion about = Legacy oil temps.=20 Dennis Johnson Legacy N52PT ------=_NextPart_000_000B_01C7C26F.99D9E1A0 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

I did the first "hot weather" flight in my Legacy last = week. =20 Ambient temperature at the airport was in the low nineties, although my = OAT was=20 close to 100=B0 while taxiing out. I believe the temperature = sensor, which=20 is on the underside of the right wingtip, was picking up heat radiating = off the=20 hot asphalt and therefore reading high.

Oil temperature was 161=B0F on takeoff. I climbed at 160 = knots and=20 leveled off at 8,500 feet. The oil temperature peaked at 202=B0F = at about=20 the time I leveled off and gradually decreased to 180=B0F in = cruise. CHT #2,=20 my hottest cylinder, peaked at 385=B0F during the climb at about = 1,260=B0F=20 EGT.

I did not install an oil cooler door. That's been fine so = far,=20 but I may have a problem during the winter keeping the oil = warm=20 enough. We'll see. I have a Performance Engines IO-550 with = 8.7:1=20 pistons.

I'm offering the information as a data point in the discussion = about Legacy=20 oil temps.

Dennis Johnson

Legacy N52PT

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