X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 50 [XX] Return-Path: Received: from rwcrmhc15.comcast.net ([204.127.192.85] verified) by logan.com (CommuniGate Pro SMTP 5.1.8) with ESMTP id 2044307 for flyrotary@lancaironline.net; Mon, 14 May 2007 16:56:33 -0400 Received-SPF: none receiver=logan.com; client-ip=204.127.192.85; envelope-from=rlwhite@comcast.net Received: from rlwhite (c-68-35-160-229.hsd1.nm.comcast.net[68.35.160.229]) by comcast.net (rwcrmhc15) with SMTP id <20070514205555m15007i85ke>; Mon, 14 May 2007 20:55:55 +0000 Date: Mon, 14 May 2007 14:56:29 -0600 From: Bob White To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Re: Frustrating Sunday Message-Id: <20070514145629.269cbfc0.rlwhite@comcast.net> In-Reply-To: References: X-Mailer: Sylpheed 2.4.0 (GTK+ 2.10.11; i686-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit There is also the flashing NOP on the EM2. Bill Shertz had suggested seating problems with the connector. I would also suggest looking closely at the pins in the connector. They can move around some if the soldering temp was a little too high. If the pins aren't straight and sticking out the proper length, it makes the seating problem worse. It can also be very intermittent. This shouldn't be a problem with crimped pins. A tip for soldering 'D' connectors: I always plug the connector into a mating connector before soldering. If the plastic gets soft, the mating connector holds the pin in alignment until it cools off again. Bob W. On Mon, 14 May 2007 15:58:32 -0400 "Tracy Crook" wrote: > That was my guess too Bob (bad connection to 19 & 37 which is the injector ground return path). That is the only thing that would explain the symptoms Buly is having except for all 4 injector drivers going bad on both controllers (really hard to believe). It worked on the bench after I updated it. > Obviously there is an answer and I'll find out what it is when I get back next month if Buly does not find it sooner. > > I thought it might be the software (Laura's cat could have edited it when I wasn't looking) but I programmed another unit with that version and it worked OK. I am mystified at this point. > > Buly, try one more test just to satisfy my own curiosity. Remove the connector and do the ground each injector pin like you did before but instead of using a ground wire, use a wire connected to pin 19 or 37 instead. I know you already tested 19 & 37 for being grounded but try it anyway. > > Tracy (probably last email before I leave) > ----- Original Message ----- > From: Bob White > To: Rotary motors in aircraft > Sent: Monday, May 14, 2007 11:28 AM > Subject: [FlyRotary] Re: Frustrating Sunday > > > Hi Buly, > > Another thing to check is that the injector return leads (pins 19 and > 37) are connected to ground. > > Bob W. > N93BD - Rotary Powered BD-4 - http://www.bob-white.com > 3.8 Hours Total Time and holding > Cables for your rotary installation - http://www.roblinphoto.com/shop/ > > -- N93BD - Rotary Powered BD-4 - http://www.bob-white.com 3.8 Hours Total Time and holding Cables for your rotary installation - http://www.roblinphoto.com/shop/