X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Sat, 02 Mar 2013 17:29:06 -0500 Message-ID: X-Original-Return-Path: <2thman1@gmail.com> Received: from mail-pb0-f44.google.com ([209.85.160.44] verified) by logan.com (CommuniGate Pro SMTP 6.0.1) with ESMTPS id 6092537 for lml@lancaironline.net; Sat, 02 Mar 2013 16:52:16 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.160.44; envelope-from=2thman1@gmail.com Received: by mail-pb0-f44.google.com with SMTP id wz12so2390163pbc.31 for ; Sat, 02 Mar 2013 13:51:41 -0800 (PST) X-Received: by 10.66.74.2 with SMTP id p2mr25128175pav.55.1362261101177; Sat, 02 Mar 2013 13:51:41 -0800 (PST) X-Original-Return-Path: <2thman1@gmail.com> Received: from [10.249.170.216] (mobile-166-147-081-109.mycingular.net. [166.147.81.109]) by mx.google.com with ESMTPS id iu10sm16659622pbc.13.2013.03.02.13.51.39 (version=TLSv1 cipher=ECDHE-RSA-RC4-SHA bits=128/128); Sat, 02 Mar 2013 13:51:40 -0800 (PST) References: In-Reply-To: Mime-Version: 1.0 (1.0) Content-Type: multipart/alternative; boundary=Apple-Mail-F0123353-2DD1-45AA-8B9F-11DB2A449511 X-Original-Message-Id: <61CFD9C5-F9BF-41BD-9E7F-6B27587F71E6@gmail.com> Content-Transfer-Encoding: 7bit X-Mailer: iPad Mail (10B146) From: John Barrett <2thman1@gmail.com> Subject: Re: [LML] Re: Outflow valve question X-Original-Date: Sat, 2 Mar 2013 13:51:35 -0800 X-Original-To: Lancair Mailing List --Apple-Mail-F0123353-2DD1-45AA-8B9F-11DB2A449511 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: quoted-printable Thanks Bill, I found from another source you are correct about the purpose. I'm told tha= t a small vacuum pump can be used to inhibit the ear popping pressurization e= vents so I ordered one and will try it. Have been scheming whether to override the gear down switch and test the out= flow valve along with the rest or to tape down a cover over the outflow well= as you suggest. Best, John Sent from my iPad On Mar 2, 2013, at 11:44 AM, "William A. Hogarty" wr= ote: > John: >=20 > If memory serves, that fitting is designed for a vacuum source. I have ne= ver used it since I do not have any vacuum instruments. I understand that i= t is designed to allow the valve to operate slowly to prevent the cabin pres= sure rising too rapidly and bothering your ears. >=20 > BTW, if your checking your cabin pressure on the ground, the wiring from t= he gear switch to the regulator provides a ground when the gear is down whic= h means the valve will be open. During my ground check, I just used packing= tape to secure a thin aluminum sheet over the regulator. >=20 > Good luck, Bill H. >=20 >=20 >=20 > On Fri, Mar 1, 2013 at 9:24 AM, John Barrett wrote= : >>=20 >> Am about to pressure check the cabin and I'm wondering if the tune with t= he red plastic cap In the attached photo should be left as is or if it needs= to be plumbed somehow. >>=20 >> Thanks >> John >>=20 >>=20 >>=20 >>=20 >> Sent from my iPhone >> -- >> For archives and unsub http://mail.lancaironline.net:81/lists/lml/List.ht= ml >=20 --Apple-Mail-F0123353-2DD1-45AA-8B9F-11DB2A449511 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable

Thanks Bill,=

I found from another source you are correct about t= he purpose. I'm told that a small vacuum pump can be used to inhi= bit the ear popping pressurization events so I ordered one and will try it.<= /div>

Have been scheming whether to override the gear dow= n switch and test the outflow valve along with the rest or to tape down a co= ver over the outflow well as you suggest.

Best,

John

Sent from my iPad

On M= ar 2, 2013, at 11:44 AM, "William A. Hogarty" <billhogarty@gmail.com> wrote:

John:

If memory serves, that fitting i= s designed for a vacuum source. I have never used it since I do not ha= ve any vacuum instruments. I understand that it is designed to allow t= he valve to operate slowly to prevent the cabin pressure rising too rapidly a= nd bothering your ears.

BTW, if your checking your cabin pressure on the ground,= the wiring from the gear switch to the regulator provides a ground when the= gear is down which means the valve will be open. During my ground che= ck, I just used packing tape to secure a thin aluminum sheet over the regula= tor.

Good luck, Bill H.

On Fri, Mar 1, 2013 at 9:24 AM, John Barrett <jba= rrett@carbinge.com> wrote:

Am about to pressure check the cabin and I'm wondering if the tune with the r= ed plastic cap In the attached photo should be left as is or if it needs to b= e plumbed somehow.

Thanks
John

Sent from my iPhone
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For archives and unsub http://mail.lancaironline.net:81/lists/lml/Lis= t.html

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