X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from onempop-canada.atl.sa.earthlink.net ([207.69.195.60] verified) by logan.com (CommuniGate Pro SMTP 5.0.5) with ESMTP id 904814 for flyrotary@lancaironline.net; Thu, 29 Dec 2005 02:11:22 -0500 Received-SPF: none receiver=logan.com; client-ip=207.69.195.60; envelope-from=jmpcrftr@teleport.com Received: from user-11fb416.dsl.mindspring.com ([66.245.144.38] helo=michaelm1.teleport.com) by onempop-canada.atl.sa.earthlink.net with esmtp (Exim 3.36 #10) id 1Errvo-00025h-00 for flyrotary@lancaironline.net; Thu, 29 Dec 2005 02:10:37 -0500 Message-Id: <7.0.0.16.0.20051228230433.0232a9f8@teleport.com> X-Mailer: QUALCOMM Windows Eudora Version 7.0.0.16 Date: Wed, 28 Dec 2005 23:09:53 -0800 To: "Rotary motors in aircraft" From: Michael McGee Subject: Re: [FlyRotary] alternate alternators In-Reply-To: References: Mime-Version: 1.0 Content-Type: multipart/alternative; boundary="=====================_53924796==.ALT" --=====================_53924796==.ALT Content-Type: text/plain; charset="us-ascii"; format=flowed At 20:43 2005-12-28, you wrote: >Years ago, a friend mounted an external oil pump in the distributor >hole on a 12A powered formula car. Then ran a lost spark crank >triggered ignition. > >The drive gear on the crank gave up after about an hour, running 75 >PSI of oil pressure. >The distributor drive gear was about half gone. It is barely able to >turn the distributor for any length of time. The diameter is too >large, (surface speed too high) and contact area too small for any >load at all. A bronze gear on the distributor drive with a spray of >oil would probably >work. > >Lynn E. Hanover > > >There goes my smarty pants idea of how to run my fuel pump :-(. > >Back to the stupid gilmer belt. > >Oh well; saves me the time and expense of re-inventing the wheel. > >nutts! > >Monty Oh hell, I was going to mount a hydraulic prop governor on the unused apex seal oil pump pad...(same drive gear)... well, .. guess I'm going to have to re-think that one. Thanks Lynn Mike McGee, RV-4 N996RV, O320-E2G, Hillsboro, OR 13B in gestation mode, RD-1C, EC-2 --=====================_53924796==.ALT Content-Type: text/html; charset="us-ascii" At 20:43 2005-12-28, you wrote:

Years ago, a friend mounted an external oil pump in the distributor hole on a 12A powered formula car. Then ran a lost spark crank triggered ignition.

The drive gear on the crank gave up after about an hour, running 75 PSI of oil pressure.
The distributor drive gear was about half gone. It is barely able to turn the distributor for any length of time. The diameter is too large, (surface speed too high) and contact area too small for any load at all. A bronze gear on the distributor drive with a spray of oil would probably
work.

Lynn E. Hanover

There goes my smarty pants idea of how to run my fuel pump :-(.

Back to the stupid gilmer belt.

Oh well; saves me the time and expense of re-inventing the wheel.

nutts!

Monty

Oh hell, I was going to mount a hydraulic prop governor on the unused apex seal oil pump pad...(same drive gear)...
well, .. guess I'm going to have to re-think that one.
Thanks Lynn

Mike McGee, RV-4 N996RV, O320-E2G, Hillsboro, OR
13B in gestation mode, RD-1C, EC-2 --=====================_53924796==.ALT--