X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from mx2.netapp.com ([216.240.18.37] verified) by logan.com (CommuniGate Pro SMTP 5.4c2o) with ESMTPS id 4875045 for flyrotary@lancaironline.net; Fri, 18 Feb 2011 10:32:30 -0500 Received-SPF: softfail receiver=logan.com; client-ip=216.240.18.37; envelope-from=echristley@nc.rr.com X-IronPort-AV: E=Sophos;i="4.62,187,1297065600"; d="scan'208";a="520165518" Received: from smtp1.corp.netapp.com ([10.57.156.124]) by mx2-out.netapp.com with ESMTP; 18 Feb 2011 07:31:55 -0800 Received: from [10.62.16.200] (ernestc-laptop.hq.netapp.com [10.62.16.200]) by smtp1.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id p1IFVsWr000169 for ; Fri, 18 Feb 2011 07:31:55 -0800 (PST) Message-ID: <4D5E90E5.9010703@nc.rr.com> Date: Fri, 18 Feb 2011 10:31:49 -0500 From: Ernest Christley Reply-To: echristley@nc.rr.com User-Agent: Thunderbird 2.0.0.24 (X11/20100623) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: - Day dreaming... References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Lehanover@aol.com wrote: > OK three things. The distributor drive gear on the crank is up for > some wear stress. The drive gear on the distributor and the crank > angle sensor is not, and will gleefully drop iron dust into the oil > when heavily loaded. > You've mentioned this before, and it is one reason that the secondary ignition with its own power supply is a "future enhancement". One of the prerequisites of that setup was finding a suitable replacement for the distributor drive gear. But, that was before I owned a lathe. Now, all I have to do is buy a short round of suitable stock and cut one myself. What would be the best material: steel, aluminum or brass?