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 5.3.6) with ESMTPS id 4245675 for flyrotary@lancaironline.net; Mon, 03 May 2010 10:22:43 -0400 Received-SPF: softfail receiver=logan.com; client-ip=216.240.18.37; envelope-from=echristley@nc.rr.com X-IronPort-AV: E=Sophos;i="4.52,320,1270450800"; d="scan'208";a="353824621" Received: from smtp1.corp.netapp.com ([10.57.156.124]) by mx2-out.netapp.com with ESMTP; 03 May 2010 07:21:36 -0700 Received: from [10.62.16.108] (ernestc-laptop.hq.netapp.com [10.62.16.108]) by smtp1.corp.netapp.com (8.13.1/8.13.1/NTAP-1.6) with ESMTP id o43ELaG6013709 for ; Mon, 3 May 2010 07:21:36 -0700 (PDT) Message-ID: <4BDEDBEF.1030308@nc.rr.com> Date: Mon, 03 May 2010 10:21:35 -0400 From: Ernest Christley Reply-To: echristley@nc.rr.com User-Agent: Thunderbird 2.0.0.24 (X11/20100317) MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] ka-pow References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit kevin lane wrote: > my new engine has been hard to start. the other weekend I experienced > a big bang [backfire I guessed]. today I noticed my intake manifold > has a bit of a leak! my design assumption that it would always be in > a slight vacuum state was obviously wrong. need to check the carb I > guess to see if anything happened to it. > > > Kevin, is that just an aluminum shoebox, bolted to a plate and then sealed with blue-goo? Seems like it would be really simple construction, and the side blowing out would help to protect the carb in the case of a backfire.