Return-Path: Received: from imf25aec.mail.bellsouth.net ([205.152.59.73] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 756851 for flyrotary@lancaironline.net; Wed, 23 Feb 2005 22:29:02 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.73; envelope-from=sqpilot@bellsouth.net Received: from [216.78.114.51] by imf25aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050224032813.IHYO2148.imf25aec.mail.bellsouth.net@[216.78.114.51]> for ; Wed, 23 Feb 2005 22:28:13 -0500 Received: from 127.0.0.1 (AVG SMTP 7.0.300 [266.4.0]); Wed, 23 Feb 2005 21:28:07 -0600 Message-ID: <013a01c51a20$dada9180$382dd6d1@paul52u7f5qyav> From: "Paul" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Vapor Lock Date: Wed, 23 Feb 2005 21:28:06 -0600 X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2180 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.2180 Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=======AVGMAIL-421D49C73583=======" --=======AVGMAIL-421D49C73583======= Content-Type: multipart/alternative; boundary="----=_NextPart_000_0137_01C519EE.902127D0" ------=_NextPart_000_0137_01C519EE.902127D0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Re: Vapor LockHi, Herb....unfortunately this is not = exactly the case. I installed the vent line and bypassed the Facet pump = at the same time, then I was unable to induce vapor lock. Since I = accomplished both mods at the same time, I'm not sure which contributed = most to the cure. I have not tested the engine with only the sump tank = vent, or only the Facet pump bypassed, only with both mods accomplished. = Since I took both Excedrin and Tylenol, I don't know which cured the = headache. Paul Conner ----- Original Message -----=20 From: Herb Sanders=20 To: Rotary motors in aircraft=20 Sent: Wednesday, February 23, 2005 5:56 PM Subject: [FlyRotary] Re: Vapor Lock Since Paul was able to duplicate the problem with the Facet in the = line and the 3/16 od vent line installed, and was NOT able to duplicate = the problem when he removed the Facet from the system, I would interpret = that (1) The vent line is not large enough to vent in that particular = situation and (2) The Facet pump is not necessary and perhaps even in = the way.=20 Paul, I know you will stay with it until you feel comfortable, but if = you leave the pump in the system (a proven problem), I would like to see = you go to at least a 3/8 od vent line.=20 Herb -----Original Message----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of Bartrim, Todd Sent: Wednesday, February 23, 2005 5:30 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Vapor Lock Hi Paul; I'd suggest that now that you have the vent tube, you really = aren't concerned whether the Facet pump will allow backflow. As a matter = of fact I 'd even suggest that I wouldn't want it, but I'd certainly = want the ability to pump it forward to force cool fuel into the header = tank, thereby forcing any possible vapour back through the vent line. I = don't have any problems drawing fuel through my Facet pumps and I = wouldn't be without them. Just my 2 bits Todd =20 Thanks for the info, Tracy. My only concern is this....if the Facet = pump was not involved, might it be better to have it back in the system = so that if I have a future problem, I could turn the Facet pump on to = pressurize the sump tank with fresh fuel? Ed seems to be comfortable = with this, and has had to use it. =20 -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.4.0 - Release Date: 2/22/2005 ------=_NextPart_000_0137_01C519EE.902127D0 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable Re: [FlyRotary] Re: Vapor Lock
Hi, Herb....unfortunately this is not = exactly the=20 case.  I installed the vent line and bypassed the Facet pump at the = same=20 time, then I was unable to induce vapor lock. Since I accomplished both = mods at=20 the same time, I'm not sure which contributed most to the cure.  I = have not=20 tested the engine with only the sump tank vent, or only the Facet pump = bypassed,=20 only with both mods accomplished.  Since I took both Excedrin and = Tylenol,=20 I don't know which cured the headache. Paul Conner
----- Original Message -----
From:=20 Herb=20 Sanders
Sent: Wednesday, February 23, = 2005 5:56=20 PM
Subject: [FlyRotary] Re: Vapor = Lock

Since Paul = was able=20 to duplicate the problem with the Facet in the line and the 3/16 od = vent line=20 installed, and was NOT able to duplicate the problem when he removed = the Facet=20 from the system, I would interpret that (1) The vent line is not large = enough=20 to vent in that particular situation and (2) The Facet pump is not = necessary=20 and perhaps even in the way.

 

Paul, I = know you will=20 stay with it until you feel comfortable, but if you leave the pump in = the=20 system (a proven problem), I would like to see you go to at least a = 3/8 od=20 vent line.

Herb

 

-----Original=20 Message-----
From: = Rotary=20 motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of Bartrim, = Todd
Sent: Wednesday, February 23, = 2005 5:30=20 PM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: Vapor Lock

 

Hi=20 Paul;

   =20 I'd suggest that now that you have the vent tube, you really aren't = concerned=20 whether the Facet pump will allow backflow. As a matter of fact I 'd = even=20 suggest that I wouldn't want it, but I'd certainly want the ability to = pump it=20 forward to force cool fuel into the header tank, thereby forcing any = possible=20 vapour back through the vent line. I don't have any problems drawing = fuel=20 through my Facet pumps and I wouldn't be without = them.

 

Just my = 2=20 bits

Todd

 


 

Thanks = for the=20 info, Tracy.  My only concern is this....if the Facet pump was = not=20 involved, might it be better to have it back in the = system so that=20 if I have a future problem, I could turn the Facet pump on to = pressurize the=20 sump tank with fresh fuel?  Ed seems to be comfortable with = this, and=20 has had to use it.

      =20

No virus found in this incoming message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.300 / Virus Database: 266.4.0 - Release = Date:=20 2/22/2005
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