X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m24.mx.aol.com ([64.12.137.5] verified) by logan.com (CommuniGate Pro SMTP 5.1.1) with ESMTP id 1516298 for flyrotary@lancaironline.net; Tue, 31 Oct 2006 01:08:50 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.5; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m24.mx.aol.com (mail_out_v38_r7.6.) id q.cce.1a3d916 (48576) for ; Tue, 31 Oct 2006 01:08:02 -0500 (EST) From: Lehanover@aol.com Message-ID: Date: Tue, 31 Oct 2006 01:08:02 EST Subject: Re: [FlyRotary] Re: fuel pumps To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1162274882" X-Mailer: 9.0 Security Edition for Windows sub 5331 X-Spam-Flag: NO -------------------------------1162274882 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 10/30/2006 11:58:34 P.M. Eastern Standard Time, daval@iprimus.com.au writes: Hi Lynn, do you have any ideas on methods to lean a weber, or any carb for that matter, for altitude mixture adjustment. I have heard of a vacuum line to the inlet manifold thru a needle valve to the fuel bowl, then vary the pressure head in the fuel bowl. And, jetting the carb at sea level with the choke on, and then backing off the choke as the airplane climbs. Any comments or suggestions? BR, Dave McC The vacuum line to the bowl works fine on the dyno. I have no data on the choke idea. The big Webers have no chokes. Lynn E. Hanover -------------------------------1162274882 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 10/30/2006 11:58:34 P.M. Eastern Standard Time,=20 daval@iprimus.com.au writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>Hi=20 Lynn,
do you have any ideas on methods to lean a weber, or any carb for= =20 that
matter, for altitude mixture adjustment. I have heard of a vacuum= =20 line
to the inlet manifold thru a needle valve to the fuel bowl, then=20= vary=20
the pressure head in the fuel bowl. And, jetting the carb at sea level= =20
with the choke on, and then backing off the choke as the airplane=20
climbs.
Any comments or suggestions?
BR, Dave=20 McC
The vacuum line to the bowl works fine on the dyno. I have no data on t= he=20 choke idea. The big Webers have no chokes.
 
Lynn E. Hanover
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