Return-Path: Received: from mtiwmhc13.worldnet.att.net ([204.127.131.117] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 753600 for flyrotary@lancaironline.net; Mon, 21 Feb 2005 20:31:19 -0500 Received-SPF: none receiver=logan.com; client-ip=204.127.131.117; envelope-from=keltro@att.net Received: from 204.127.135.42 ([204.127.135.42]) by worldnet.att.net (mtiwmhc13) with SMTP id <20050222013028113002p0oge>; Tue, 22 Feb 2005 01:30:33 +0000 Received: from [209.247.222.82] by 204.127.135.42; Tue, 22 Feb 2005 01:30:28 +0000 From: keltro@att.net (Kelly Troyer) To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] No more vapor lock Date: Tue, 22 Feb 2005 01:30:28 +0000 Message-Id: <022220050130.10468.421A8B33000AEC67000028E42160281302019D9B040A05@att.net> X-Mailer: AT&T Message Center Version 1 (Oct 18 2004) X-Authenticated-Sender: a2VsdHJvQGF0dC5uZXQ= MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="NextPart_Webmail_9m3u9jl4l_10468_1109035828_0" --NextPart_Webmail_9m3u9jl4l_10468_1109035828_0 Content-Type: text/plain Content-Transfer-Encoding: 8bit Paul, Does this mean the Facet fuel pump is history ?? -- Kelly Troyer Dyke Delta/13B/RD1C/EC2 -------------- Original message from "Paul" : -------------- Well, after several mods to my airplane, which include installing firesleeve on all fuel lines, installing a vent for the sump tank (into the main wing tank) and bypassing the Facet fuel pump with a short length of clear tubing, I ran the engine until the water temp hit 230 degrees. I shut it down and let the heat soaking proceed. Then I restarted the engine and ran it up to 240 degrees. Still was able to go to full power with no signs of the engine stumbling or running rough. Finally, temps hit 250 and I could hear the surge tank spitting out steam and liquid, but WOT was still smooth. Previously it would stumble and quit by the time I hit 230. I taxiied back in and temps only came down to around 220, so we placed the fan under the NACA scoop to cool it down. There was evidence of small bubbles coming out of the top of the aluminum sump tank (which remained cool to the touch even at 250 degrees water temp), going into the left fuel strake. It was a small amount, but nevertheless, it was evident that the vent was working. There was no evidence of any bubbles coming out of the bottom of the surge tank and trying to work their way back up towards the fuel selector valve (through the line that the Facet pump normally resides). I ran it again today, but just to normal 180 degree temps, and it still ran fine. Paul Conner --NextPart_Webmail_9m3u9jl4l_10468_1109035828_0 Content-Type: text/html Content-Transfer-Encoding: 8bit

Paul,

Does this mean the Facet fuel pump is history ??

--
Kelly Troyer
Dyke Delta/13B/RD1C/EC2

-------------- Original message from "Paul" <sqpilot@bellsouth.net>: --------------

Well, after several mods to my airplane, which include installing firesleeve on all fuel lines, installing a vent for the sump tank (into the main wing tank) and bypassing the Facet fuel pump with a short length of clear tubing, I ran the engine until the water temp hit 230 degrees. I shut it down and let the heat soaking proceed. Then I restarted the engine and ran it up to 240 degrees. Still was able to go to full power with no signs of the engine stumbling or running rough. Finally, temps hit 250 and I could hear the surge tank spitting out steam and liquid, but WOT was still smooth. Previously it would stumble and quit by the time I hit 230. I taxiied back in and temps only came down to around 220, so we placed the fan under the NACA scoop to cool it down. There was evidence of small bubbles coming out of the top of the aluminum sump tank (which remained cool to the touch even at 250 degrees water temp), going into the left fuel strake. It was a small amount, but nevertheless, it was evident that the vent was working. There was no evidence of any bubbles coming out of the bottom of the surge tank and trying to work their way back up towards the fuel selector valve (through the line that the Facet pump normally resides). I ran it again today, but just to normal 180 degree temps, and it still ran fine. Paul Conner

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