X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 19 Jul 2010 06:15:19 -0400 Message-ID: X-Original-Return-Path: Received: from n13.bullet.mail.mud.yahoo.com ([68.142.206.40] verified) by logan.com (CommuniGate Pro SMTP 5.3.8) with SMTP id 4397814 for lml@lancaironline.net; Mon, 19 Jul 2010 00:03:32 -0400 Received-SPF: none receiver=logan.com; client-ip=68.142.206.40; envelope-from=mcmess1919@yahoo.com Received: from [209.191.108.96] by n13.bullet.mail.mud.yahoo.com with NNFMP; 19 Jul 2010 04:02:57 -0000 Received: from [68.142.201.242] by t3.bullet.mud.yahoo.com with NNFMP; 19 Jul 2010 04:02:56 -0000 Received: from [127.0.0.1] by omp403.mail.mud.yahoo.com with NNFMP; 19 Jul 2010 04:02:56 -0000 X-Yahoo-Newman-Id: 915495.19564.bm@omp403.mail.mud.yahoo.com Received: (qmail 34382 invoked from network); 19 Jul 2010 04:02:56 -0000 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.com; h=DKIM-Signature:Received:X-Yahoo-SMTP:X-YMail-OSG:X-Yahoo-Newman-Property:From:To:References:In-Reply-To:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:Thread-Index:Content-Language:x-cr-hashedpuzzle:x-cr-puzzleid; b=ZFpzwTbJhm5lxuXBvUA06IjrjEZTV0i5XYowvDCWkE1w2p/tiPrSAjvGCR7HQx02DQJm8NaZnLYm0+zNuUmEckY0Jlu/dDX288mKDXCH/630j/6DvVIeA0khnFKBJlxmlD/ArbDv0o3YTmzZ7WGwyd+MhcDhfG5GKKUiiwcVQCY= ; Received: from ClaudettePC (mcmess1919@67.187.169.61 with login) by smtp111.plus.mail.sp1.yahoo.com with SMTP; 18 Jul 2010 21:02:56 -0700 PDT X-Yahoo-SMTP: rK4i7HqswBC7mDE8.sOiWQeO4CeReXc- X-YMail-OSG: sdoj62EVM1nwGtvV5hmgTmyxO_ryuDmCE_AKjxol8_sa8X. rxkQFGtbEkIeUOlq6QDqaVuo4EBuYMv3pY8jJ0r_7LPv_WhtpzS_dFXj6g8I uod3cQJUyrJlhddoZDhF_uKY4GyqCRiW6pP.I_SEsogcgXxv9FEBeNdfnz0o kq0qRxLWD0pOagq5bT5Yton9IeZFm.BbR5ZmUD_J1HRyp95RA5hWvIg5HOQU rg4wp5yqJwq2urZuWPWAvOPu8qCzZ3xi.TJUvGT.lVcVMEJc- X-Yahoo-Newman-Property: ymail-3 From: "Steve Colwell" X-Original-To: "'Lancair Mailing List'" References: In-Reply-To: Subject: My airplane is running HOT X-Original-Date: Sun, 18 Jul 2010 21:02:55 -0700 X-Original-Message-ID: <012701cb26f7$44c06c30$ce414490$@com> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0128_01CB26BC.98619430" X-Mailer: Microsoft Office Outlook 12.0 Thread-Index: Acsl4Gbu7/nO6Up9Tia481Sge04rOABDVyhg Content-Language: en-us x-cr-hashedpuzzle: K3Q= AXEG BPF+ BcgM Bqzc Cpwe DegJ EME6 FV7F F1tN GUFI HGS2 IV1N J2Kn Klm6 K5qi;1;bABtAGwAQABsAGEAbgBjAGEAaQByAG8AbgBsAGkAbgBlAC4AbgBlAHQA;Sosha1_v1;7;{ADDC384B-554F-4DB7-8AD9-83F2AF569F0F};bQBjAG0AZQBzAHMAMQA5ADEAOQBAAHkAYQBoAG8AbwAuAGMAbwBtAA==;Mon, 19 Jul 2010 04:02:51 GMT;TQB5ACAAYQBpAHIAcABsAGEAbgBlACAAaQBzACAAcgB1AG4AbgBpAG4AZwAgAEgATwBUAA== x-cr-puzzleid: {ADDC384B-554F-4DB7-8AD9-83F2AF569F0F} This is a multipart message in MIME format. ------=_NextPart_000_0128_01CB26BC.98619430 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit 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. It sounds like a baffling problem is most likely. A good seal around the front of the cowling to plenum and proper fitting of lower baffling are the first places I would look on a plenum installation. This is a long shot but here goes. When I bought a very low time RV6 it had a factory new Lyc O-360-A1A. The builder had hooked up the oil cooler to an outlet not recommended on Lycoming's data sheet. So I fixed it. The oil temp jumped over 50 degrees. After I restored it, it returned to its previous "too cool" status. At altitudes above 10 K it ran less than 170 degrees year round. I never saw temps above 200 degrees on sustained climbs at 1000 to 1500' per min to over 10k. Winter required a plate blocking 75%+ of the cooler to keep temps close to 170 degrees. The cooler was a standard unit supplied by Van's, located behind the left rear cylinder (viewed from the cockpit) as recommended. If you are not getting enough fuel on takeoff or climb a fuel flow gauge will confirm that. You might run this by an engine builder or two for their thoughts. Maybe they will have a check list of basic stuff. Steve Colwell Legacy ------=_NextPart_000_0128_01CB26BC.98619430 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable


  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.

 
It sounds like a baffling problem is most likely.  A good seal around the front of the cowling to plenum and = proper fitting of lower baffling are the first places I would look on a plenum installation.  

 

This is a long shot but here goes.  When I bought a = very low time RV6 it had a factory new Lyc O-360-A1A.   The builder = had hooked up the oil cooler to an outlet not recommended on Lycoming’s data sheet.  So I fixed it.  The oil temp jumped over 50 = degrees.  After I restored it, it returned to its previous “too cool” = status.  At altitudes above 10 K it ran less than 170 degrees year round.  I = never saw temps above 200 degrees on sustained climbs at 1000 to 1500’ = per min to over 10k.  Winter required a plate blocking 75%+ of the cooler = to keep temps close to 170 degrees.  The cooler was a = standard unit supplied by Van’s, located behind the left rear cylinder = (viewed from the cockpit) as recommended.  If you are not getting enough = fuel on takeoff or climb a fuel flow gauge will confirm that. =

 

You might run this by an engine builder or two for their thoughts.  Maybe they will have a check list of basic = stuff.

 

Steve Colwell   Legacy=

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