Return-Path: Received: from [65.23.108.33] (HELO mail.tsisp.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP-TLS id 3066338 for flyrotary@lancaironline.net; Sat, 06 Mar 2004 08:27:26 -0500 Received: from stevehome ([]) by mail.tsisp.com (Technical Support Inc.) with SMTP id BGA74184 for ; Sat, 06 Mar 2004 08:27:27 -0500 Reply-To: From: "Steve Brooks" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Re: Injectors Date: Sat, 6 Mar 2004 08:28:04 -0500 Message-ID: <003b01c4037e$db563880$6400a8c0@WORKGROUP.local> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook CWS, Build 9.0.2416 (9.0.2910.0) In-Reply-To: X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1165 Importance: Normal Ed, That's a great idea. I'll see if I can find some. Do You know off hand the size required ? I'm using the standard Mazda Purple injectors. Steve -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Ed Anderson Sent: Saturday, March 06, 2004 8:17 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Injectors ----- Original Message ----- From: "Steve Brooks" To: "Rotary motors in aircraft" Sent: Saturday, March 06, 2004 8:09 AM Subject: [FlyRotary] Injectors > When I ran my engine I had trouble getting it to idle down. It wanted to > run a higher RPM than I thought that it should. I checked for any air > leaks, and after closing a bypass hole in the throttle body, it seemed to do > better, but if I put a plate over the throttle body the engine still runs, > telling me that its getting air somewhere. > > I think that its getting air around the fuel injectors. I'm using the > injector tubes from Paul Lamar, and I noticed when I installed the injectors > that a couple of the tubes were a little loose compared to the other two, > and all of them were not as snug fitting as the original Mazda fuel rail. > > I've been considering putting a bead of silicone rubber around each injector > to seal off the outside air. Does anyone have an opinion about that, or a > better suggestion ? > > Steve Brooks > Cozy MKIV 13BT > CH 25 - finishing > Steve, what I have used successfully to stop air leaks are rubber/vito "O" rings. Depending on how much clearance you have between the walls of your injector holes and the injector, an "O" ring around the injector before you plug it into the hole may be all that is needed. Torquing down the fuel rail compresses the "O" ring and seals off air leaks.. Ed Anderson RV-6A N494BW Rotary Powered Matthews, NC >> Homepage: http://www.flyrotary.com/ >> Archive: http://lancaironline.net/lists/flyrotary/List.html