X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Thu, 07 Aug 2014 16:59:47 -0400 Message-ID: X-Original-Return-Path: Received: from mail-yk0-f176.google.com ([209.85.160.176] verified) by logan.com (CommuniGate Pro SMTP 6.0.9e) with ESMTPS id 7083536 for lml@lancaironline.net; Thu, 07 Aug 2014 16:26:08 -0400 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.176; envelope-from=mwsletten@gmail.com Received: by mail-yk0-f176.google.com with SMTP id 19so3160335ykq.35 for ; Thu, 07 Aug 2014 13:25:34 -0700 (PDT) X-Received: by 10.236.178.36 with SMTP id e24mr8205295yhm.78.1407443134048; Thu, 07 Aug 2014 13:25:34 -0700 (PDT) MIME-Version: 1.0 Received: by 10.170.211.130 with HTTP; Thu, 7 Aug 2014 13:25:13 -0700 (PDT) In-Reply-To: References: From: Mark Sletten X-Original-Date: Thu, 7 Aug 2014 15:25:13 -0500 X-Original-Message-ID: Subject: Re: [LML] Re: High CHTs on #2, TSIO 550 X-Original-To: Lancair Mailing List Content-Type: multipart/alternative; boundary=20cf3040e3b40befaa05000fe4cf --20cf3040e3b40befaa05000fe4cf Content-Type: text/plain; charset=UTF-8 Is this the photo? http://mail.lancaironline.net:81/lists/lml/Message/61891.html?Language= --Mark On Thu, Aug 7, 2014 at 3:17 PM, pete@leapfrogventures.com < 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 > --20cf3040e3b40befaa05000fe4cf Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Is this the photo?



On Thu, Aug 7, 2014 at 3:17 PM, pete@leapfrogventures.com <<= a href=3D"mailto:pete@leapfrogventures.com" target=3D"_blank">pete@leapfrog= ventures.com> wrote:
You need to install a scoop inside the oil c= ooler to get the air around and on the bottom back side of #2. =C2=A0If you= look closely, you will notice that the depth of the gap between fins at th= e horizontal sides of each cylinder is not symmetric. =C2=A0It has depth be= tween them on one side of the cylinder, but not on the other. =C2=A0On #2, = the zero depth side is up against the oil cooler, so no air gets around to = the bottom. =C2=A0I tried the blister idea some have used, but found the sc= oop to be far superior. =C2=A0#2 is no longer my hottest, even on climbout = - all cylinders are now within 20 degrees of each other. =C2=A0I posted pho= tos of it a few years ago, but can't seem to find my original.

Pete


-----Original Message-----
From: Thomas Whalen [mailto:thomas= jwhalen@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 Lan= cair 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 hav= e 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/L= ist.html

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