Thanks. If tightening tthe exuast connections doesn't fix the CO problem you might want to try putting some temporary extensions on your exhaust pipes. You migt be getting some kind of srange airflow blowing exhaust back into the cowl with the NACA duct exhaust outlets.
Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-boun...@mylist.net [mailto:krnet-boun...@mylist.net]On Behalf Of Mark Langford Sent: Saturday, November 26, 2005 8:34 PM To: KRnet Subject: Re: KR> Ellison primer system Brian Kraut wrote: > What are the rest of you with Ellisons using for a prime and start > procedure? The Ellison has no accelerator pump, so no amount of pumping the throttle will start it. Fuel doesn't come out of that spray bar unless there's a vacuum being pulled, and there's not enough vacuum until the engine is running. I thought I could get away without one, but I'm now convinced that a primer is absolutely necessary (just like the manual says), especially when it's as cold as it is now. I gave up in the summertime, and it would be impossible during winter. I have an electric primer solenoid as sold by Wicks, plumbed off a tee on the way to the carb (see diagram at http://home.hiwaay.net/~langford/fuel/index.html ). The primer line splts in two with one going to each intake manifold, where the primer orifices (which have a tiny hole in them to limit flow) are screwed into 1/8" NPT holes in the manifolds. Obviously, an electric pump is a must with this system, but the Ellison requires one anyway. I have a pushbutton under the panel that I press while starting the engine, and usually it lights off in a second in the summertime, but when it's 20 degrees F outside, it takes 2 or 3 seconds. In the last three days I've flown the KR 8.6 hours. I did 6 landings today, and think I finally figured out how to do it. I'm up to 91 hours, with 212 landings. It's supposed to be windy and gusty tomorrow, so I think it's time for an oil change and a little inspection. I tightened up the exhaust system tonight, so maybe my carbon monoxide problem is fixed. The detector will tell the story... Mark Langford, Huntsville, Alabama see KR2S project N56ML at http://home.hiwaay.net/~langford email to N56ML "at" hiwaay.net -------------------------------------------------------------- _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
