X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from smtp2go.com ([207.58.142.213] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTPS id 5135226 for flyrotary@lancaironline.net; Sat, 24 Sep 2011 18:45:33 -0400 Received-SPF: none receiver=logan.com; client-ip=207.58.142.213; envelope-from=crobinson@medialantern.com Message-ID: <4E7E5D67.1070808@medialantern.com> Date: Sat, 24 Sep 2011 18:44:55 -0400 From: Chad Robinson User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:6.0.2) Gecko/20110902 Thunderbird/6.0.2 MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Eccentric Shaft Oil Jets References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit On 9/24/2011 6:19 PM, Thomas Mann wrote: > So can the metering pump be modified to pull 2-Cycle oil from > a reservoir rather than tapping into the normal oil source? I see racers doing this on the rx7club and nopistons forums, but they have a good reason (usually they want to run synthetic, which doesn't burn that cleanly. In an aircraft, where's the benefit? Run out of OMP oil and you kill your apex seals (and maybe your housings if the apex seals break and drag around in there...) Run out of crankcase oil and you could seize the E-shaft. Both are bad, so you're going to have to pay attention to your oil quantity, and dino oil works fine. So... if you don't want to run premix, why not just leave the stock setup the way it is? At least that way you aren't introducing a new failure mode to the mix... Am I missing something?