Return-Path: Received: from imf23aec.mail.bellsouth.net ([205.152.59.71] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 543781 for flyrotary@lancaironline.net; Tue, 23 Nov 2004 16:27:46 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.71; envelope-from=ceengland@bellsouth.net Received: from [127.0.0.1] ([209.215.60.48]) by imf23aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20041123212713.FSHV2429.imf23aec.mail.bellsouth.net@[127.0.0.1]> for ; Tue, 23 Nov 2004 16:27:13 -0500 Message-ID: <41A3AB30.60603@bellsouth.net> Date: Tue, 23 Nov 2004 15:27:12 -0600 From: Charlie England 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 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Bubbles in fuel line from pump - update References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Actually, you do have a vacuum pump. Plug your tank vent & run the fuel pump in short bursts. Watch the tank skins closely for cupping between the ribs & watch the fuel line for bubbles. Try smearing the potential leak points on the valve with heavy grease & see if it makes a difference. Charlie (helping Finn avoid spending money) Finn Lassen wrote: > No, I wish I did have a vacuum pump. But I can make do with what I've got. > > Finn > > Russell Duffy wrote: > >> Plan for tomorrow: >> Replace line from tank to valve (inspect fuel tank pickup at the same >> time) and test. >> If no joy, figure out a way to eliminate selector valve (I'm not too >> happy at the prospect of not having a fuel shutoff valve, not even for a >> bried test flight). >> >> Finn >> >> Sounds like Marvin may be onto something with the selector valve >> idea. Do you have one of those hand pump type vacuum testers >> (mighty-vac or similar)? If so, how about using it to test the line >> at various points for leaks. >> >> Good luck, >> Rusty (no bubbles that I know of, but then my lines are aluminum) >> >> >> >> >>