X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 24 Jul 2010 10:44:32 -0400 Message-ID: X-Original-Return-Path: Received: from imr-db02.mx.aol.com ([205.188.91.96] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4405451 for lml@lancaironline.net; Sat, 24 Jul 2010 10:23:47 -0400 Received-SPF: pass receiver=logan.com; client-ip=205.188.91.96; envelope-from=Sky2high@aol.com Received: from imo-ma03.mx.aol.com (imo-ma03.mx.aol.com [64.12.78.138]) by imr-db02.mx.aol.com (8.14.1/8.14.1) with ESMTP id o6OEN570010813 for ; Sat, 24 Jul 2010 10:23:05 -0400 Received: from Sky2high@aol.com by imo-ma03.mx.aol.com (mail_out_v42.9.) id q.c89.64b66b15 (37190) for ; Sat, 24 Jul 2010 10:23:01 -0400 (EDT) Received: from magic-m25.mail.aol.com (magic-m25.mail.aol.com [172.20.22.198]) by cia-ma05.mx.aol.com (v129.4) with ESMTP id MAILCIAMA058-91464c4af7452a7; Sat, 24 Jul 2010 10:23:01 -0400 From: Sky2high@aol.com X-Original-Message-ID: <5e48b.57103ea2.397c5145@aol.com> X-Original-Date: Sat, 24 Jul 2010 10:23:01 EDT Subject: Re: [LML] Re: My airplane is running HOT X-Original-To: lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="part1_5e48b.57103ea2.397c5145_boundary" X-Mailer: AOL 9.5 sub 155 X-AOL-ORIG-IP: 67.175.87.113 X-AOL-IP: 172.20.22.198 X-Spam-Flag:NO X-AOL-SENDER: Sky2high@aol.com --part1_5e48b.57103ea2.397c5145_boundary Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Disconnect the cockpit heat valve cold air input and run the lines thru there - you can use 1/8" lines. Grayhawk In a message dated 7/24/2010 9:13:35 A.M. Central Daylight Time, vonjet@gmail.com writes: Too late on the tear apart. I already made the plenum for the larger cooler and hoses. I removed the old one and I am getting ready to re-install the new cooler. Should be done on Monday. I didn't like the cooler up front anyway. It was rubbing on my cowling and damaged it. I wish I would have done this from the start. I wouldn't have a big chunk of paint missing from my cowling. And because of the space I had to use a 7 vane instead of the 9 vane. If this doesn't help then I will consider having the carb looked at. As far as pressure measurements I don't know how I would get this done without drilling holes in my firewall and I'd prefer not to do that as I have it all sealed up pretty good. How did you do it on yours? how many holes do you need if I do need to do this? Bryan On Fri, Jul 23, 2010 at 10:39 AM, Chris Zavatson <_chris_zavatson@yahoo.com_ (mailto:chris_zavatson@yahoo.com) > wrote: Bryan, I would suggest taking pressure measurements before tearing the installation apart. The data will help determine the problem source, heat generation vs. heat dissipation. CHTs are primarily driven by EGTs (mixture) and cooling air flow. The differential pressure test will verify air flow. Since CHTs in cruise are good and reported fuel flow in the climb sounds low I would suspect the carb itself. I wouldn't expect any global CHT change by moving the oil cooler, since the source of air and the volume extracted will be roughly the same. I do like switching to a larger cooler. If I recall, you had some kind of space constraint that made it difficult to put the larger cooler in the same location up front. Chris Chris Zavatson N91CZ 360std _www.N91CZ.com_ (http://www.n91cz.com/) ____________________________________ From: Bryan Wullner <_vonjet@gmail.com_ (mailto:vonjet@gmail.com) > To: _lml@lancaironline.net_ (mailto:lml@lancaironline.net) Sent: Wed, July 21, 2010 2:08:42 PM Subject: [LML] Re: My airplane is running HOT I'm starting with the changing of oil cooler to a larger one and relocation to engine bay with scat ducting to it off the baffling. If that doesn't do it I will move on to the next idea. My hopes are that my oil comes down and helps the cht's too. I also hope that closing off the large hole in the front baffling from old oil cooler placment helps with cht's Bryan --part1_5e48b.57103ea2.397c5145_boundary Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
Disconnect the cockpit heat valve cold air input and run the lin= es=20 thru there - you can use 1/8" lines.
 
Grayhawk
 
In a message dated 7/24/2010 9:13:35 A.M. Central Daylight Time,=20 vonjet@gmail.com writes:
Too late=20 on the tear apart.=20
I already made the plenum for the larger cooler and hoses.  I= =20 removed the old one and I am getting ready to re-install the new cooler.= =20 Should be done on Monday. 
I didn't like the cooler up front anyway. It was rubbing on my cowl= ing=20 and damaged it. I wish I would have done this from the start. I wouldn't= have=20 a big chunk of paint missing from my cowling. And because of the space= I had=20 to use a 7 vane instead of the 9 vane. 
If this doesn't help then I will consider having the carb looked=20 at. 
As far as pressure measurements I don't know how I would get this= done=20 without drilling holes in my firewall and I'd prefer not to do that as= I have=20 it all sealed up pretty good.  How did you do it on yours? how many= holes=20 do you need if I do need to do this?

Bryan



On Fri, Jul 23, 2010 at 10:39 AM, Chris Zavatso= n <chris_zavatson@yahoo.com>=20 wrote:
Bryan,
I would suggest taking pressure measurements before tearing=20 the installation apart.  The data will help determine the pr= oblem=20 source, heat generation vs. heat dissipation.
CHTs are primarily driven by EGTs (mixture) and cooling air flow.=  =20 The differential pressure test will verify air flow.  Since CHTs= in=20 cruise are good and reported fuel flow in the climb sounds low I= would=20 suspect the carb itself.
I wouldn't expect any global CHT change by moving the oil cooler,= since=20 the source of air and the volume extracted will be roughly= the=20 same. 
I do like switching to a larger cooler.  If I recall, you ha= d some=20 kind of space constraint that made it difficult to put the larger cool= er in=20 the same location up front.
Chris
 
 
Chris Zavatson
N91CZ
360std

From: Bryan Wullner &l= t;vonjet@gmail.com>
To: lml@lancair= online.net
Sent: Wed, July 21, 2010 2:08:42 PM=20

Subject:=20 [LML] Re: My airplane is running HOT

I'm starting with the changing of oil cooler to a larger one and=20 relocation to engine bay with scat ducting to it off the baffling.
= If=20 that doesn't do it I will move on to the next idea.
My hopes are th= at my=20 oil comes down and helps the cht's too. I also hope that closing off= the=20 large hole in the front baffling from old oil cooler placment helps wi= th=20 cht's

Bryan

 



=
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