X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 26 Mar 2008 11:56:44 -0400 Message-ID: X-Original-Return-Path: Received: from wind.imbris.com ([216.18.130.7] verified) by logan.com (CommuniGate Pro SMTP 5.2.1) with ESMTPS id 2818853 for lml@lancaironline.net; Wed, 26 Mar 2008 10:21:11 -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 m2QEKUPC055847 for ; Wed, 26 Mar 2008 07:20:30 -0700 (PDT) (envelope-from brent@regandesigns.com) X-Original-Message-ID: <47EA5BAC.2060509@regandesigns.com> X-Original-Date: Wed, 26 Mar 2008 07:20:28 -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: LIV door seal question - non-pressurized aircraft Content-Type: multipart/alternative; boundary="------------060108060605050305050201" This is a multi-part message in MIME format. --------------060108060605050305050201 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Hi Fred, Paul is correct on all points (this time ;). You do not need the door frame tape and you can drop the pressure to 10-12 PSI for non pressurized AC. The pump "blips" occur for two reasons; thermal, as the hot compressed air cools and leaks, usually in the pneumatic switch or check valve. The prime cause for the latter is dirt ingested through the pump. For this reason I installed an aquarium aeration stone as an inlet filter to the pump. It has worked well for keeping the system clean and blip free for 13 years. Regards Brent Regan --------------060108060605050305050201 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Hi Fred,

Paul is correct on all points (this time ;). You do not need the door frame tape and you can drop the pressure to 10-12 PSI for non pressurized AC. The pump "blips" occur for two reasons; thermal, as the hot compressed air cools and leaks, usually in the pneumatic switch or check valve. The prime cause for the latter is dirt ingested through the pump. For this reason I installed an aquarium aeration stone as an inlet filter to the pump. It has worked well for keeping the system clean and blip free for 13 years.

Regards
Brent Regan
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