Return-Path: Sender: "Marvin Kaye" To: lml@lancaironline.net Date: Fri, 24 Dec 2004 17:10:49 -0500 Message-ID: X-Original-Return-Path: Received: from imo-m19.mx.aol.com ([64.12.137.11] verified) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 579042 for lml@lancaironline.net; Fri, 24 Dec 2004 11:08:29 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.11; envelope-from=Sky2high@aol.com Received: from Sky2high@aol.com by imo-m19.mx.aol.com (mail_out_v37_r3.8.) id g.9f.5507a894 (3310); Fri, 24 Dec 2004 11:07:39 -0500 (EST) From: Sky2high@aol.com X-Original-Message-ID: <9f.5507a894.2efd98cb@aol.com> X-Original-Date: Fri, 24 Dec 2004 11:07:39 EST Subject: Re: An inch (MAP) ... A Hypothesis for Gear Heads X-Original-To: lorn@dynacomm.ws, lml@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1103904459" X-Mailer: 9.0 Security Edition for Windows sub 5000 -------------------------------1103904459 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit In a message dated 12/24/2004 8:45:16 A.M. Central Standard Time, lorn@dynacomm.ws writes: The part that I was referring to is called a 1/4" Snubber Valve. Vision Micro sells them for about $27.00. When I did a google search for snubber valves I found that they can have a ball like check valve and their purpose is to dampen pressure fluctuations and fluid carried harmonics. Arnie repeated the flight test (-1" MAP) with the same results (drop of 15-18 KIAS, -1.7 gph) but when keeping the MAP constant at WOT and dropping RPM by 100 his speed only dropped 2-3 Kts and .6 gph. There is something definitely wrong with the path to the MAP sensor. I guess we all have one of these since it is hidden inside of what looks like a brass fitting on the VM sensor block. I will check mine the next time I pull my cowling. If that is the problem, it would be a pain to clean it, easy to replace it. Scott Krueger AKA Grayhawk N92EX IO320 Aurora, IL (KARR) -------------------------------1103904459 Content-Type: text/html; charset="US-ASCII" Content-Transfer-Encoding: quoted-printable
In a message dated 12/24/2004 8:45:16 A.M. Central Standard Time,=20 lorn@dynacomm.ws writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>The part=20 that I was referring to is called a 1/4" Snubber Valve. Vision
Micro s= ells=20 them for about $27.00.
When I did a google search for snubber valves I found that they can hav= e a=20 ball like check valve and their purpose is to dampen=20 pressure fluctuations and fluid carried harmonics.  Arnie repeated= the=20 flight test (-1" MAP) with the same results (drop of 15-18 KIAS, -1.7=20 gph) but when keeping the MAP constant at WOT and dropping RPM by 100 h= is=20 speed only dropped 2-3 Kts and .6 gph.  There is something definitely w= rong=20 with the path to the MAP sensor.  I guess we all have one of these sinc= e it=20 is hidden inside of what looks like a brass fitting on the VM sensor=20 block.  I will check mine the next time I pull my cowling.  If tha= t is=20 the problem, it would be a pain to clean it, easy to replace=20 it. 
 
Scott Krueger=20 AKA Grayhawk
N92EX IO320 Aurora, IL=20 (KARR)

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