John Barrett

Sent from my iPad

On Aug 10, 2014, at 1:56 PM, "pete@leapfrogventures.com" <pete@leapfrogventures.com> wrote:

<= blockquote type=3D"cite">

That is correct. However, the only time you n= eed to close the oil door is when temps are really cold, which means your CH= Ts are on the cool side as well, so it works just fine in both hot and cold s= cenarios.

Pete

On Aug 9, 2014, at 5:18 AM, C= olyn Case <colyncase@earthlink= .net> wrote:

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 t= he blister approach IMHO.

P= ete

From:= Mark Sletten [mailto:mwsletten@gmail.com]
Sent: Thursday= , August 07, 2014 2:00 PM
Subject:= Re: [LML] Re: H= igh CHTs on #2, TSIO 550

Is this the photo?

&n= bsp;

http://mail.lancaironline.net:81/lists/lml/Message= /61891.html?Language=3D

&nbs= p;

--Mark

<= /div>

On Thu, A= ug 7, 2014 at 3:17 PM, pete@leapfrogventures.com <pete@leapfro= gventures.com> wrote:

You need to install= a scoop inside the oil cooler to get the air around and on the bottom back s= ide of #2. If you look closely, you will notice that the depth of the g= ap between fins at the horizontal sides of each cylinder is not symmetric. &= nbsp;It has depth between them on one side of the cylinder, but not on the o= ther. On #2, the zero depth side is up against the oil cooler, so no a= ir 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, e= ven on climbout - all cylinders are now within 20 degrees of each other. &nb= sp;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, Augus= t 06, 2014 1:20 PM
Subject: High CHTs on #2, TSIO 550

I have been f= ighting 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 s= eals up to the top cowl but not down to the bottom. I have seen it the rever= se of that as well. If close the oil cooler door the CHT will drop 5dg at ti= mes.
This was a factory new engine.
Any suggestions?

Thomas Wha= len
N444TW

--
For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html

= --Apple-Mail-3FA2A23C-0A8C-4A7F-859C-C324C995B158--