X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 17 Jul 2010 19:44:05 -0400 Message-ID: X-Original-Return-Path: Received: from fmailhost03.isp.att.net ([204.127.217.103] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with ESMTP id 4396779 for lml@lancaironline.net; Sat, 17 Jul 2010 17:53:55 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.217.103; envelope-from=bbradburry@bellsouth.net Received: from desktop (adsl-85-142-250.mco.bellsouth.net[98.85.142.250]) by isp.att.net (frfwmhc03) with SMTP id <20100717215319H03002v5cpe>; Sat, 17 Jul 2010 21:53:19 +0000 X-Originating-IP: [98.85.142.250] From: "Bill Bradburry" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: RE: [LML] Re: My airplane is running HOT X-Original-Date: Sat, 17 Jul 2010 17:53:21 -0400 X-Original-Message-ID: <084D356D7C024685ABDE6E17F45437B2@Desktop> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0015_01CB25D8.F237ADD0" X-Mailer: Microsoft Office Outlook 11 Thread-Index: Acsl35PuowUrGt6yQAusVh6obxQ6AAAGpfQQ X-MimeOLE: Produced By Microsoft MimeOLE V6.0.6001.18049 This is a multi-part message in MIME format. ------=_NextPart_000_0015_01CB25D8.F237ADD0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Check the air pressure in flight above the cylinders and compare it to the air pressure below the cylinders. You may find that you need to add a cowl flap. At least you can see how the air is moving thru the cowl in flight. That will go a long way to solving the problem. Bill B _____ From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Bryan Wullner Sent: Saturday, July 17, 2010 2:41 PM To: lml@lancaironline.net Subject: [LML] Re: My airplane is running HOT Exit area is standard 360 cowling exit. Can see why it would behave any different than any other lancair out there. Its actually a pretty good size opening. On Fri, Jul 16, 2010 at 8:21 PM, wrote: Posted for Bryan Wullner : Anybody have any ideas or advice for the following situation: Lancair 360 with carbed 360 (180hp) engine. 475 hours on it about. Chrome Cylinders. I have a Plenum cooling system and larger cowling inlets. (Zavatson's cowling and plenum system) Oil cooler is mounted at the front inlet. Oil wont cool in climb and will go up to 230 and probably higher if not stabilized. CHT's are all hot in climbs and will go to 440 no problem. Cant figure it out. Motor runs great, compression good, boroscoped fine, mag timing good. All leaks in plenum or baffling are sealed. Probes were checked out ok. Only thing I haven't checked is the vernotherm. Thanks for any advice. Bryan [How big are your cooling air outlets and where are they located? Sounds like you're getting the cooling air in but not letting it out. Just a thought. ] -- For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.html ------=_NextPart_000_0015_01CB25D8.F237ADD0 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

Check the air pressure in flight = above the cylinders and compare it to the air pressure below the cylinders. = You may find that you need to add a cowl flap. At least you can see how the air = is moving thru the cowl in flight. That will go a long way to solving the = problem.

Bill B

From: = Lancair Mailing List = [mailto:lml@lancaironline.net] On Behalf Of Bryan Wullner
Sent: Saturday, July 17, = 2010 2:41 PM
To: = lml@lancaironline.net
Subject: [LML] Re: My = airplane is running HOT

Exit area is standard 360 cowling exit. Can see why it would = behave any different than any other lancair out there. Its actually a pretty good = size opening.

On Fri, Jul 16, 2010 at 8:21 PM, <marv@lancair.net> wrote:

Posted for Bryan Wullner = <vonjet@gmail.com>:

Anybody have any ideas or advice for the following situation:

Lancair 360 with carbed 360 (180hp) engine. 475 hours on it about. = Chrome
Cylinders. I have a Plenum cooling system and larger cowling = inlets.
(Zavatson's cowling and plenum system)
Oil cooler is mounted at the front inlet.
Oil wont cool in climb and will go up to 230 and probably higher = if not
stabilized. CHT's are all hot in climbs and will go to 440 no = problem. Cant
figure it out.
Motor runs great, compression good, boroscoped fine, mag timing = good. All
leaks in plenum or baffling are sealed.
Probes were checked out ok.

Only thing I haven't checked is the vernotherm.

Thanks for any advice.
Bryan

[How big are your cooling air outlets and where are they located? = Sounds like you're getting the cooling air in but not letting it out. = Just a thought. <Marv> ]

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