X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mail03.syd.optusnet.com.au ([211.29.132.184] verified) by logan.com (CommuniGate Pro SMTP 4.3.4) with ESMTPS id 1005690 for flyrotary@lancaironline.net; Fri, 17 Jun 2005 19:41:30 -0400 Received-SPF: none receiver=logan.com; client-ip=211.29.132.184; envelope-from=lendich@optusnet.com.au Received: from george (d211-31-104-109.dsl.nsw.optusnet.com.au [211.31.104.109]) by mail03.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j5HNefZj016162 for ; Sat, 18 Jun 2005 09:40:43 +1000 Message-ID: <008201c57396$ba4a3040$6d681fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: re-drive question for Tracy Date: Sat, 18 Jun 2005 09:46:04 +1000 MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 David, OK I see now, if he's going to use the motor shaft drive from the front housing to drive his PSRU circulation pump what's he going to oil the apex seals with - am I missing something ? I agree with you on possible over complication, but doesn't hurt to have that option. George( down under) > > On 18/06/2005, at 5:55 AM, George Lendich wrote: > > > David, > > Thanks mate - yep that's my plan as well, try the oil bath (splash > > feed) and > > then look at pressure feed. > > I didn't think the Oil metering pump would give sufficient oil, unless > > Don > > is looking at dribble feed. > > > ***** There were two different approaches discussed here: > > 1. Use the metering pump just as a circulation pump thru a small > cooler, but still using splash feed. ( splash lube is OK for gearboxes, > remember that 99% of car manual gearboxes use splash lube), and, > > 2, Use the metering pump pad/drive, to run a small pressure pump to > spray lube and circulate oil thru a small cooler. > > Both could be unnecessary, and just add to complication, weight, and > another point of failure . As someone said, "solving a problem we don't > have" > FWIW, Dave McC