X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from host.roblinphoto.com ([72.52.218.78] verified) by logan.com (CommuniGate Pro SMTP 5.2.0) with ESMTPS id 2795161 for flyrotary@lancaironline.net; Mon, 17 Mar 2008 10:04:39 -0400 Received-SPF: pass receiver=logan.com; client-ip=72.52.218.78; envelope-from=bob@bob-white.com Received: from c-68-35-160-229.hsd1.nm.comcast.net ([68.35.160.229]:54269 helo=quail) by host.roblinphoto.com with esmtpa (Exim 4.68) (envelope-from ) id 1JbFwU-0002RS-Cr for flyrotary@lancaironline.net; Mon, 17 Mar 2008 10:03:58 -0400 Date: Mon, 17 Mar 2008 08:02:16 -0600 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Porting Message-Id: <20080317080216.e09034a5.bob@bob-white.com> In-Reply-To: References: X-Mailer: Sylpheed 2.4.8 (GTK+ 2.12.0; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-AntiAbuse: This header was added to track abuse, please include it with any abuse report X-AntiAbuse: Primary Hostname - host.roblinphoto.com X-AntiAbuse: Original Domain - lancaironline.net X-AntiAbuse: Originator/Caller UID/GID - [47 12] / [47 12] X-AntiAbuse: Sender Address Domain - bob-white.com OK, I get it now. Porting an engine with a drill will destroy THE DRILL! When I started reading this I had the horrible feeling that you had destroyed your engine. Bob W. On Mon, 17 Mar 2008 09:35:15 -0400 Ernest Christley wrote: > Porting an engine with a drill will destroy it. > > Plain and simple. No ifs, ands or buts. I have a die grinder, but > nothing more than a pancake compressor so actually using it is painful. > I could buy a larger compressor, but then I have to find someplace to > store it. Having everything else I need to start the porting process, I > improvised. Chucked the parabolic bit into my drill and had at it. > > 4 hours, and only one oopsie, later, I had a nicely ported intake, and a > drill with a chuck that wobbles like a drunken sailor. I'm talking at > least 1/2" of play at the tip of the chuck. Fortunately, these drills > are cheap at Northern Tool. I can get them for $15 when they're on > sale. The extra handle gives you a lot to hold onto as you're grinding > away; hence, the single oopsie. You hate for tools to be considered > disposable, but in this case it worked out really well. > > http://ernest.isa-geek.org/Delta/Pictures/ EnginePortingTemplate.jpg > http://ernest.isa-geek.org/Delta/Pictures/EnginePortingIntermediateHousingRear.jpg > > http://ernest.isa-geek.org/Delta/Pictures/EnginePortingRearHousing.jpg > http://ernest.isa-geek.org/Delta/Pictures/EnginePortingIntermediateHousingFront.jpg > > http://ernest.isa-geek.org/Delta/Pictures/EnginePortingRearHousing2.jpg > > http://ernest.isa-geek.org/Delta/Pictures/EnginePortingFrontHousingOopsie.jpg > > > > -- > Homepage: http://www.flyrotary.com/ > Archive and UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.html -- N93BD - Rotary Powered BD-4 - http://www.bob-white.com 3.8 Hours Total Time and holding Cables for your rotary installation - http://roblinstores.com/cables/