X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Tue, 07 Aug 2007 05:56:49 -0400 Message-ID: X-Original-Return-Path: Received: from wind.imbris.com ([216.18.130.7] verified) by logan.com (CommuniGate Pro SMTP 5.1.11) with ESMTPS id 2245897 for lml@lancaironline.net; Mon, 06 Aug 2007 14:17:26 -0400 Received-SPF: none receiver=logan.com; client-ip=216.18.130.7; envelope-from=brent@regandesigns.com Received: from [192.168.1.100] (cbl-238-80.conceptcable.com [207.170.238.80] (may be forged)) (authenticated bits=0) by wind.imbris.com (8.12.11/8.12.11.S) with ESMTP id l76IGd7J090527 for ; Mon, 6 Aug 2007 11:16:43 -0700 (PDT) (envelope-from brent@regandesigns.com) X-Original-Message-ID: <46B76589.3000406@regandesigns.com> X-Original-Date: Mon, 06 Aug 2007 11:16:41 -0700 From: Brent Regan User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.7.2) Gecko/20040804 Netscape/7.2 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 X-Original-To: Lancair Mailing List Subject: RE: TSIO-550-E Compression Content-Type: multipart/alternative; boundary="------------030706060407030403020407" This is a multi-part message in MIME format. --------------030706060407030403020407 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Skip asks: During this years conditional inspection cylinder #5's compression was found to be 40/80. All the other cylinders are in the mid 70's. You can hear air escaping past what I believe to be the exhaust port. Engine has less then 100 hour since new. Any words of wisdom before I remove the cylinder. Thanks Skip >>> Skip, you want to check that the leak is not caused by a chunk of carbon falling from the spark plug thread area as the plug was removed for installing the leak tester fitting. Remove the valve cover and tap the end of the valve stem (via the rocker) with a dead blow hammer or a soft metal drift to see if you can get the valve to seat. Alternately, you can start the engine and run it for a few minutes before rechecking the compression on that cylinder. Running the engine will blow out any carbon crumbs. Regards Brent Regan --------------030706060407030403020407 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Skip asks:

During this years conditional inspection cylinder #5's compression
was found to be 40/80. All the other cylinders are in the mid 70's.
You can hear air escaping past what I believe to be the 
exhaust port. Engine has less then 100 hour since new.
Any words of wisdom before I remove the cylinder.
 
Thanks
Skip

>>>

Skip, you want to check that the leak is not caused by a chunk of carbon falling from the spark plug thread area as the plug was removed for installing the leak tester fitting. Remove the valve cover and tap the end of the valve stem (via the rocker) with a dead blow hammer or a soft metal drift to see if you can get the valve to seat.

Alternately, you can start the engine and run it for a few minutes before rechecking the compression on that cylinder. Running the engine will blow out any carbon crumbs.

Regards
Brent Regan
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