X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Mon, 06 Apr 2009 07:41:18 -0400 Message-ID: X-Original-Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.122] verified) by logan.com (CommuniGate Pro SMTP 5.2.13) with ESMTP id 3568680 for lml@lancaironline.net; Thu, 02 Apr 2009 20:45:52 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.122; envelope-from=toucan@Satx.rr.com Received: from [24.243.2.165] by cdptpa-omta03.mail.rr.com with ESMTP id <20090403004515.BPDG19140.cdptpa-omta03.mail.rr.com@[24.243.2.165]> for ; Fri, 3 Apr 2009 00:45:15 +0000 X-Original-Message-ID: <49D55C07.9030705@Satx.rr.com> X-Original-Date: Thu, 02 Apr 2009 19:44:55 -0500 From: Jim Cameron User-Agent: Thunderbird 2.0.0.21 (Windows/20090302) MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: Hot #2 on IO-550-N Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Friend of mine is scratching his head over his #2 cylinder on an IO-550-N. Runs about 40 degrees hotter than the rest, although all his EGT's are nearly the same. He spoke to a retired Continental engineer, who told him that a lot of the IO-550's had that problem. My friend has checked all the obvious, baffling leaks, shrouds fitting properly, etc. He tried putting the oil cooler door on and closing it part way, thinking maybe that would push more air over the cylinder. No dice. The problem seems to be not enough air flowing down between #2 and #4 -- that's the exhaust side of #2. Has anyone else run into this? Any ideas how to push more air through there? Jim Cameron Legacy N132X