X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from cdptpa-omtalb.mail.rr.com ([75.180.132.120] verified) by logan.com (CommuniGate Pro SMTP 5.2.8) with ESMTP id 3181692 for flyrotary@lancaironline.net; Sun, 21 Sep 2008 22:10:26 -0400 Received-SPF: pass receiver=logan.com; client-ip=75.180.132.120; envelope-from=eanderson@carolina.rr.com Received: from computername ([75.191.186.236]) by cdptpa-omta03.mail.rr.com with ESMTP id <20080922020949.MZEH23829.cdptpa-omta03.mail.rr.com@computername> for ; Mon, 22 Sep 2008 02:09:49 +0000 From: "Ed Anderson" To: "'Rotary motors in aircraft'" Subject: RE: [FlyRotary] Manifold vacuum gauge Date: Sun, 21 Sep 2008 22:09:45 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_001E_01C91C36.C1E1C420" X-Mailer: Microsoft Office Outlook, Build 11.0.5510 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 Thread-Index: AckcR4QFqQIcF521Su6RKE7Eo353oQAEH4ZQ In-Reply-To: Message-Id: <20080922020949.MZEH23829.cdptpa-omta03.mail.rr.com@computername> This is a multi-part message in MIME format. ------=_NextPart_000_001E_01C91C36.C1E1C420 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit John, I presume you are using a Manifold Pressure gauge and not a Manifold vacuum gauge? In the old days past it was common to find manifold vacuum gauges on automobiles rather than the manifold pressure gauges used by aircraft engines. Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.dmack.net/mazda/index.html _____ From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John Downing Sent: Sunday, September 21, 2008 8:19 PM To: Rotary motors in aircraft Subject: [FlyRotary] Manifold vacuum gauge Today I sorted out the wiring and everything is now working. The only problem is that the manifold vacuum gauge is reading backwards. I tried changing the plus-minus wires around on the back of the gauge and it reads nothing, even with vacuum applied. The question is what happens if I switch the power and ground wires around, does that do anything besides blow the fuse or the gauge. Will run the engine again tomorrow with the ole steam gauge and try and get a start on the EC2 tuning. One other question, does the vacuum lines to the EC2 need some kind of pulse chamber, like a small fuel filter or orifice in each line. JohnD __________ Information from ESET NOD32 Antivirus, version of virus signature database 3267 (20080714) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com ------=_NextPart_000_001E_01C91C36.C1E1C420 Content-Type: text/html; charset="us-ascii" Content-Transfer-Encoding: quoted-printable

John, I presume you are using a = Manifold Pressure gauge and not a Manifold vacuum gauge?  In the old days = past it was common to find manifold vacuum gauges on automobiles rather than the = manifold pressure gauges used by aircraft engines.

 

Ed

 

Ed Anderson

Rv-6A N494BW Rotary = Powered

Matthews, NC

eanderson@carolin= a.rr.com

http://www.andersonee.com

http://members.cox.net/rogersda/rotary/configs.htm#N494BW

http://www.dmack.net/mazda/index.html<= font size=3D2 face=3DArial>

From: = Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Behalf Of John Downing
Sent: Sunday, September = 21, 2008 8:19 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Manifold vacuum gauge

 

Today I sorted out the wiring and everything is now working.  The only problem is that the manifold vacuum gauge is = reading backwards.  I tried changing the plus-minus wires around on the = back of the gauge and it reads nothing, even with vacuum applied.  The = question is what happens if I switch the power and ground wires around, does that do anything besides blow the fuse or the gauge.  Will run the engine = again tomorrow with the ole steam gauge and try and get a start on the EC2 tuning. 

 

 One other question, does the vacuum lines to = the EC2 need some kind of pulse chamber, like a small fuel filter or orifice in = each line.  JohnD



__________ Information from ESET NOD32 Antivirus, version of virus = signature database 3267 (20080714) __________

The message was checked by ESET NOD32 Antivirus.

http://www.eset.com



__________ Information from ESET NOD32 Antivirus, version of = virus signature database 3267 (20080714) __________

The message = was checked by ESET NOD32 Antivirus.

http://www.eset.com
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