X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 28 May 2012 13:17:00 -0400 Message-ID: X-Original-Return-Path: Received: from p3plex2out01.prod.phx3.secureserver.net ([184.168.131.12] verified) by logan.com (CommuniGate Pro SMTP 5.4.5) with ESMTP id 5562970 for lml@lancaironline.net; Sun, 27 May 2012 13:08:42 -0400 Received-SPF: none receiver=logan.com; client-ip=184.168.131.12; envelope-from=pete@leapfrogventures.com Received: from P3PW5EX1HT002.EX1.SECURESERVER.NET ([72.167.180.20]) by p3plex2out01.prod.phx3.secureserver.net with bizsmtp id F5861j0010SoFT401586R0; Sun, 27 May 2012 10:08:06 -0700 Received: from P3PW5EX1MB14.EX1.SECURESERVER.NET ([10.6.135.86]) by P3PW5EX1HT002.EX1.SECURESERVER.NET ([72.167.180.20]) with mapi; Sun, 27 May 2012 10:08:06 -0700 From: "pete@leapfrogventures.com" X-Original-To: John Barrett , "lml@lancaironline.net" X-Original-Date: Sun, 27 May 2012 10:08:06 -0700 Subject: RE: hot #2 Cyl TSIO 550 revisit Thread-Topic: hot #2 Cyl TSIO 550 revisit Thread-Index: Ac0777KApfXIU7/XShqP9e8ggjk36AAOhHeQ X-Original-Message-ID: <2A14E6258A8534418F5498D73CCA51EF13613489CD@P3PW5EX1MB14.EX1.SECURESERVER.NET> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: acceptlanguage: en-US Content-Type: multipart/alternative; boundary="_000_2A14E6258A8534418F5498D73CCA51EF13613489CDP3PW5EX1MB14E_" MIME-Version: 1.0 --_000_2A14E6258A8534418F5498D73CCA51EF13613489CDP3PW5EX1MB14E_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable John, #2 was also my hottest cylinder. First I installed the concave insert that= was listed in one of the on-line articles that allows the air to flow arou= nd the shallow fins on the oil cooler side of #2 (is that what you are call= ing the "hat box"?). However, even with the concave insert, #2 was still m= y hottest. At that point I remembered that my engine, which I got from a s= alvage of Adam aircraft inventory, came with a piece of baffling for the oi= l box that had a scoop installed inside the oil box that directed air aroun= d to the lower right side of the cylinder. The scoop was =BE" deep at the = top and flush at the bottom, and about 3" wide (the width of the long fins = on the cylinder). I moved this scoop from the discarded Adam baffling piec= e onto the Lancair oil box (the hole was nearly the same size as the previo= us concave shaped part I had installed before). Not only did this solve my= #2 CHT problem (it is now one of my coolest cylinders), but it did not not= iceably affect oil temps. A win-win. Pete From: John Barrett [mailto:jbarrett@carbinge.com] Sent: Saturday, May 26, 2012 12:35 PM To: lml@lancaironline.net Subject: hot #2 Cyl TSIO 550 revisit Hello all, In April I asked some questions about this issue of managing the cooling f= low for #2 cylinder and there was a prolific and enlightening response that= helped a lot. The most common piece of advice was to build what was terme= d a "hat box" in the forward wall of the oil cooler box to allow more air a= round the back and bottom of this cylinder. Someone posted a photo of that fix and it was excellent. Now I'm ready to = go to work on this project and I've searched my data bases in different com= puters for that photo for a couple of hours to no avail. I'm hoping that w= hoever was kind enough to post that picture will resend. Thanks in advance. Regards, John Barrett, CEO Leading Edge Composites PO Box 428 Port Hadlock, WA 98339 www.carbinge.com --_000_2A14E6258A8534418F5498D73CCA51EF13613489CDP3PW5EX1MB14E_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

John,

#2 was also my hottest cylinder. First I install= ed the concave insert that was listed in one of the on-line articles that a= llows the air to flow around the shallow fins on the oil cooler side of #2 = (is that what you are calling the “hat box”?). However, e= ven with the concave insert, #2 was still my hottest. At that point I= remembered that my engine, which I got from a salvage of Adam aircraft inv= entory, came with a piece of baffling for the oil box that had a scoop inst= alled inside the oil box that directed air around to the lower right side o= f the cylinder. The scoop was =BE” deep at the top and flush at= the bottom, and about 3” wide (the width of the long fins on the cyl= inder). I moved this scoop from the discarded Adam baffling piece ont= o the Lancair oil box (the hole was nearly the same size as the previous co= ncave shaped part I had installed before). Not only did this solve my= #2 CHT problem (it is now one of my coolest cylinders), but it did not not= iceably affect oil temps. A win-win.

Pete

&= nbsp;

From: John Barrett [= mailto:jbarrett@carbinge.com]
Sent: Saturday, May 26, 2012 12:35= PM
To: lml@lancaironline.net
Subject: hot #2 Cyl TSIO = 550 revisit

&nbs= p;

Hello all,

In April I asked some questio= ns about this issue of managing the cooling flow for #2 cylinder and = there was a prolific and enlightening response that helped a lot. The= most common piece of advice was to build what was termed a “hat box&= #8221; in the forward wall of the oil cooler box to allow more air around t= he back and bottom of this cylinder.

Someone posted a photo of that fix a= nd it was excellent. Now I’m ready to go to work on this projec= t and I’ve searched my data bases in different computers for that pho= to for a couple of hours to no avail. I’m hoping that whoever w= as kind enough to post that picture will resend.

Thanks in advance.<= /o:p>

Reg= ards,

John Barrett, CEO

Leading Edge C= omposites

PO Box 428

Port Hadlock, WA 98339

<= o:p>

www.carbinge.com

=

= --_000_2A14E6258A8534418F5498D73CCA51EF13613489CDP3PW5EX1MB14E_--