X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from [216.148.227.154] (HELO rwcrmhc12.comcast.net) by logan.com (CommuniGate Pro SMTP 5.0.6) with ESMTP id 923300 for flyrotary@lancaironline.net; Wed, 11 Jan 2006 22:55:48 -0500 Received-SPF: none receiver=logan.com; client-ip=216.148.227.154; envelope-from=rlwhite@comcast.net Received: from Quail (bgp01386375bgs.brodwy01.nm.comcast.net[68.35.160.229]) by comcast.net (rwcrmhc14) with SMTP id <20060112035503014002257ge>; Thu, 12 Jan 2006 03:55:04 +0000 Date: Wed, 11 Jan 2006 20:55:23 -0500 From: Bob White To: "Rotary motors in aircraft" Subject: Re: Cool Tube Muffler Sound Readings Message-Id: <20060111205523.4d31461a.rlwhite@comcast.net> In-Reply-To: References: X-Mailer: Sylpheed version 2.1.9 (GTK+ 2.8.3; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Good idea Bill, I need to make a list of all the things I should check perodically. I've found a couple of places where the oil is seeping out. One is the copper seal on the oil cooler fitting. I don't remember if I used a new one. The other leak I thought might be the oil vent is coming from the gear reduction oil return fitting on the block. After the initial euphoria wore off, I find the engine could be running better. It's missing out a bit below 2000 rpm. Also, one test I did (but didn't write down) was killing the leading and trailing plugs. I think killing one of them caused an rpm increase, so I may not have the timing set where I think I do. I need to confirm that. I made an initial attempt at auto tune but it didn't work out too well. The bar graph just kept going down till the engine started surging. It was nice to have the B controller which brought it back to smooth running again. Bob W. On Wed, 11 Jan 2006 20:49:48 -0600 "William" wrote: > Glad to hear that the muffler seems to be working. Please check often for > stress/fatigue cracks at the joint of the short tubes to the big round can. > The can expands and contracts with each heating cycle, and the other end of > the tubes are fixed by the temperature of the block. It may be okay, but > worth checking frequently until you get experience. > Bill Schertz > KIS Cruiser # 4045 > ----- Original Message ----- > From: "Bob White" > To: "Rotary motors in aircraft" > Sent: Wednesday, January 11, 2006 6:00 PM > Subject: [FlyRotary] Cool Tube Muffler Sound Readings > > -- http://www.bob-white.com N93BD - Rotary Powered BD-4 (first engine start 1/7/06) Custom Cables for your rotary installation - http://www.roblinphoto.com/shop/