X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from elasmtp-kukur.atl.sa.earthlink.net ([209.86.89.65] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTP id 7086100 for lml@lancaironline.net; Sat, 09 Aug 2014 08:18:57 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.65; envelope-from=colyncase@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=l2LMoTvX9/fVrqGUo6TyEpSrTy0K2p5G/FjrkY5svgmTxLxShAl9/n8ilOUCzk+r; h=Received:From:Mime-Version:Content-Type:Subject:Date:In-Reply-To:To:References:Message-Id:X-Mailer:X-ELNK-Trace:X-Originating-IP; Received: from [71.181.78.50] (helo=[192.168.1.24]) by elasmtp-kukur.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1XG5bK-00037X-9z for lml@lancaironline.net; Sat, 09 Aug 2014 08:18:22 -0400 From: Colyn Case Mime-Version: 1.0 (Apple Message framework v1085) Content-Type: multipart/alternative; boundary=Apple-Mail-132--217226872 Subject: Re: [LML] Re: High CHTs on #2, TSIO 550 Date: Sat, 9 Aug 2014 08:18:22 -0400 In-Reply-To: To: "Lancair Mailing List" References: Message-Id: <8F256BB3-46A7-4745-B73A-E8283158DF21@earthlink.net> X-Mailer: Apple Mail (2.1085) X-ELNK-Trace: 63d5d3452847f8b1d6dd28457998182d7e972de0d01da9408b2e63c91c631355cac9a9573f18bd1b350badd9bab72f9c350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 71.181.78.50 --Apple-Mail-132--217226872 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii Pete, am I correct that that only works if your oil cooler door is open? On Aug 8, 2014, at 1:24 PM, pete@leapfrogventures.com wrote: That would be the one. Far superior to the blister approach IMHO. =20 Pete =20 From: Mark Sletten [mailto:mwsletten@gmail.com]=20 Sent: Thursday, August 07, 2014 2:00 PM Subject: Re: [LML] Re: High CHTs on #2, TSIO 550 =20 Is this the photo? =20 http://mail.lancaironline.net:81/lists/lml/Message/61891.html?Language=3D =20 --Mark =20 On Thu, Aug 7, 2014 at 3:17 PM, pete@leapfrogventures.com = wrote: You need to install a scoop inside the oil cooler to get the air around = and on the bottom back side of #2. If you look closely, you will notice = that the depth of the gap between fins at the horizontal sides of each = cylinder is not symmetric. It has depth between them on one side of the = cylinder, but not on the other. On #2, the zero depth side is up = against the oil cooler, so no air gets around to the bottom. I tried = the blister idea some have used, but found the scoop to be far superior. = #2 is no longer my hottest, even on climbout - all cylinders are now = within 20 degrees of each other. I posted photos of it a few years ago, = but can't seem to find my original. Pete -----Original Message----- From: Thomas Whalen [mailto:thomasjwhalen@att.net] Sent: Wednesday, August 06, 2014 1:20 PM Subject: High CHTs on #2, TSIO 550 I have been fighting for over a year to try to keep the #2 CHT below 400 = dg on the climb. It has hit as high as 430. I leave it full rich and = climb at 140kts. When I level off, I then LOP and then #1 cools off. I = have the Lancair baffles and RTV the gaps with the engine and have a = good baffle seal. I even covered my 3rd intercooler and that only helped = a little. Behind the prop the baffle seals up to the top cowl but not = down to the bottom. I have seen it the reverse of that as well. If close = the oil cooler door the CHT will drop 5dg at times. This was a factory new engine. Any suggestions? Thomas Whalen N444TW -- For archives and unsub = http://mail.lancaironline.net:81/lists/lml/List.html =20 --Apple-Mail-132--217226872 Content-Transfer-Encoding: quoted-printable Content-Type: text/html; charset=us-ascii Pete, am I correct that that only works if your oil = cooler door is open?

On Aug 8, 2014, at 1:24 PM, pete@leapfrogventures.com = wrote: