X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [206.46.252.42] (HELO vms042pub.verizon.net) by logan.com (CommuniGate Pro SMTP 4.3.2) with ESMTP id 966970 for flyrotary@lancaironline.net; Sun, 29 May 2005 00:28:04 -0400 Received: from verizon.net ([71.98.175.26]) by vms042.mailsrvcs.net (Sun Java System Messaging Server 6.2 HotFix 0.04 (built Dec 24 2004)) with ESMTPA id <0IH800LKFHQR3719@vms042.mailsrvcs.net> for flyrotary@lancaironline.net; Sat, 28 May 2005 23:28:04 -0500 (CDT) Date: Sun, 29 May 2005 00:28:02 -0400 From: Finn Lassen Subject: Re: [FlyRotary] fuel sensor In-reply-to: To: Rotary motors in aircraft Message-id: <429944D2.4000908@verizon.net> MIME-version: 1.0 Content-type: multipart/alternative; boundary=------------030907050608070202040708 X-Accept-Language: en-us, en References: User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax; PROMO) This is a multi-part message in MIME format. --------------030907050608070202040708 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit I have the filter between the pumps and the sensor. All lines are 1/4" after the pumps (as low as 1/8" through plastic fittings). These pumps definitely creates pulses, even on the input side (the old path was actually tank, valve, sensor, filter, pumps; where the filter would absorb the pulses on the input side of the pumps). Now, I guess if I had a big filter with air in it (not!) between output of pumps and the sensor, that would absorb the pulses. Finn John Downing wrote: > Finn; Do you have an orfice before the fuel sensor, or is something > that doesn't work? JohnD --------------030907050608070202040708 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit I have the filter between the pumps and the sensor. All lines are 1/4" after the pumps (as low as 1/8" through plastic fittings). These pumps definitely creates pulses, even on the input side (the old path was actually tank, valve, sensor, filter, pumps; where the filter would absorb the pulses on the input side of the pumps).

Now, I guess if I had a big filter with air in it (not!) between output of pumps and the sensor, that would absorb the pulses.

Finn

John Downing wrote:

Finn; Do you have an orfice before the fuel sensor, or is something that doesn't work? JohnD

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