Return-Path: <13brv3@bellsouth.net> Received: from imf19aec.mail.bellsouth.net ([205.152.59.67] verified) by logan.com (CommuniGate Pro SMTP 4.2b5) with ESMTP id 165598 for flyrotary@lancaironline.net; Wed, 16 Jun 2004 22:01:12 -0400 Received: from rad ([65.6.194.9]) by imf19aec.mail.bellsouth.net (InterMail vM.5.01.06.08 201-253-122-130-108-20031117) with ESMTP id <20040617020043.BWSU26119.imf19aec.mail.bellsouth.net@rad> for ; Wed, 16 Jun 2004 22:00:43 -0400 From: "Russell Duffy" <13brv3@bellsouth.net> To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Pressure Reduction Was Re: [FlyRotary] Re: Some Taxi testing today. With oil leak. Date: Wed, 16 Jun 2004 21:00:35 -0500 Message-ID: <00e801c4540e$e7d619a0$6001a8c0@rad> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.4510 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 In-Reply-To: Am I the only one who keeps getting this same message over and over :-) Rusty -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of DaveLeonard Sent: Sunday, June 13, 2004 11:39 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Pressure Reduction Was Re: [FlyRotary] Re: Some Taxi testing today. With oil leak. Ed, thanks, that's good input. However, remember that the pressure drop will depend on the flow rate. After taking your lead, I looked at = Corky's book and read his discussion. He recommends a .055-.065 restriction. = That is quite small. I decided to try a 5/32 hole today with no improvement = in leak. Then I just poured some oil in the top of the turbo and got a = leak, so it is going back to the "re-builder" and my first flight is delayed another few weeks. At least it was fun to get the tail up on the runway. :) Dave Leonard ____________________________________ Dave, a calculator I found on the Web indicated that with oil going from = a 3/8" dia (AN-6) through a 1/8" orifice would reduce the pressure by = approx 40 psi. So if your engine is putting out 70-80 psi that would bring it = down to the 30-40psi range which should be acceptable. Ed Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html