Return-Path: Received: from imf18aec.mail.bellsouth.net ([205.152.59.66] verified) by logan.com (CommuniGate Pro SMTP 4.3c2) with ESMTP id 762296 for flyrotary@lancaironline.net; Sun, 27 Feb 2005 23:35:19 -0500 Received-SPF: pass receiver=logan.com; client-ip=205.152.59.66; envelope-from=sqpilot@bellsouth.net Received: from [216.78.114.193] by imf18aec.mail.bellsouth.net (InterMail vM.5.01.06.11 201-253-122-130-111-20040605) with ESMTP id <20050228043433.ZWJJ2073.imf18aec.mail.bellsouth.net@[216.78.114.193]> for ; Sun, 27 Feb 2005 23:34:33 -0500 Received: from 127.0.0.1 (AVG SMTP 7.0.300 [266.5.0]); Sun, 27 Feb 2005 22:34:21 -0600 Message-ID: <014601c51d4e$c52ad3a0$43734ed8@paul52u7f5qyav> From: "Paul" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Weber Mixture control Date: Sun, 27 Feb 2005 22:34:19 -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-42229F4E71AD=======" --=======AVGMAIL-42229F4E71AD======= Content-Type: multipart/alternative; boundary="----=_NextPart_000_0143_01C51D1C.7A655C00" ------=_NextPart_000_0143_01C51D1C.7A655C00 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable [FlyRotary] Re: Weber Mixture controlThanks again for the info, Ken. = If I find anything, I will send it your way. Paul Conner ----- Original Message -----=20 From: Ken Welter=20 To: Rotary motors in aircraft=20 Sent: Sunday, February 27, 2005 10:30 PM Subject: [FlyRotary] Re: Weber Mixture control There is also a system used on snowmobiles that uses air bleed from = the intake manifold that adjusts the mixture but I have not looked at it = close vet but I have thought about playing with it. There are two types, one is an after market kit called Dial-a-jet and = the other is a factory setup that is automatically controlled by a = computer. I have never heard of anyone making anything for a Weber however. Also I will note that a Weber differs from a crude aircraft carb or a = Holly in that its very sensitive to air velocity and pressure, less air = going through the Venturi will give you less gas so it compensates for = alt to some degree compared to them crude carbs. Ken Hi, Ken thanks for the information. I did save a similar message = that you previously sent describing how you used ram air to control the = mixture on your Weber. If required, I could probably construct a similar = system (If I pestered you with a few more questions). I was just hoping = there was a simple solution, such as someone who came up with a = mechanical lever type mixture modification for the Weber. I could easily = weld or machine a slot in the mixture adjustment screw and attach a = cable, but I suspect that the mixture screw would need to be turned in = or out several turns, which a simple lever attached to the mixture screw = would not accomplish. It might possibly turn the mixture screw 1/2 to = 3/4 turn at max, which I suspect would not be sufficient enough to lean = the carb enough for higher altitude. Thanks again for your input. I have = also saved this posting just in case. sincerely, Paul Conner -------------------------------------------------------------------------= ----- No virus found in this incoming message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.5.0 - Release Date: 2/25/2005 ------=_NextPart_000_0143_01C51D1C.7A655C00 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: quoted-printable [FlyRotary] Re: Weber Mixture control
Thanks again for the info, = Ken.   =20 If I find anything, I will send it your way.  Paul = Conner
----- Original Message -----
From:=20 Ken=20 Welter
Sent: Sunday, February 27, 2005 = 10:30=20 PM
Subject: [FlyRotary] Re: Weber = Mixture=20 control


   There is also a system used on = snowmobiles that uses air bleed from the intake manifold that adjusts = the=20 mixture but I have not looked at it close vet but I have thought about = playing=20 with it.
 There are two types, one is an after = market kit=20 called Dial-a-jet and the other is a factory setup that is = automatically=20 controlled by a computer.
 I have never heard of anyone making = anything=20 for a Weber however.
 Also I will note that a Weber differs = from a=20 crude aircraft carb or a Holly in that its very sensitive to air = velocity and=20 pressure, less air going through the Venturi will give you less gas so = it=20 compensates for alt to some degree compared to them crude = carbs.
  Ken





Hi, Ken thanks for the = information. I did=20 save a similar message that you previously sent describing how you = used ram=20 air to control the mixture on your Weber. If required, I could = probably=20 construct a similar system (If I pestered you with a few more = questions). I=20 was just hoping there was a simple solution, such as someone who = came up=20 with a mechanical lever type mixture modification for the Weber. I = could=20 easily weld or machine a slot in the mixture adjustment screw and = attach a=20 cable, but I suspect that the mixture screw would need to be turned = in or=20 out several turns, which a simple lever attached to the mixture = screw would=20 not accomplish. It might possibly turn the mixture screw 1/2 to 3/4 = turn at=20 max, which I suspect would not be sufficient enough to lean the carb = enough=20 for higher altitude. Thanks again for your input. I have also saved = this=20 posting just in case. sincerely,  Paul Conner

No virus found in this incoming message.
Checked by AVG=20 Anti-Virus.
Version: 7.0.300 / Virus Database: 266.5.0 - Release = Date:=20 2/25/2005
------=_NextPart_000_0143_01C51D1C.7A655C00-- --=======AVGMAIL-42229F4E71AD======= Content-Type: text/plain; x-avg=cert; charset=us-ascii Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Content-Description: "AVG certification" No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 266.5.0 - Release Date: 2/25/2005 --=======AVGMAIL-42229F4E71AD=======--