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Date: Sat, 2 Mar 2013 11:44:26 -0800
Message-ID: <CAAXEWUr2177r2WnbsDvh-VTKaNpgZj8g9q+2McXZWW0Lu3z-Fw@mail.gmail.com>
Subject: Re: [LML] Outflow valve question
From: "William A. Hogarty" <billhogarty@gmail.com>
To: Lancair Mailing List <lml@lancaironline.net>
Content-Type: multipart/alternative; boundary=14dae93a0c17fefcec04d6f65934

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John:

If memory serves, that fitting is designed for a vacuum source.  I have
never used it since I do not have any vacuum instruments.  I understand
that it is designed to allow the valve to operate slowly to prevent the
cabin pressure rising too rapidly and 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 check, I just used
packing tape to secure a thin aluminum sheet over the regulator.

Good luck, Bill H.



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

>
> Am about to pressure check the cabin and I'm wondering if the tune with
> the red plastic cap In the attached photo should be left as is or if it
> needs to be plumbed somehow.
>
> Thanks
> John
>
>
>
>
> Sent from my iPhone
> --
> For archives and unsub
> http://mail.lancaironline.net:81/lists/lml/List.html
>
>

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John:<div><br></div><div>If memory serves, that fitting is designed for a v=
acuum source. =A0I have never used it since I do not have any vacuum instru=
ments. =A0I understand that it is designed to allow the valve to operate sl=
owly to prevent the cabin pressure rising too rapidly and bothering your ea=
rs.</div>
<div><br></div><div>BTW, if your checking your cabin pressure on the ground=
, the wiring from the gear switch to the regulator provides a ground when t=
he gear is down which means the valve will be open. =A0During my ground che=
ck, I just used packing tape to secure a thin aluminum sheet over the regul=
ator.</div>
<div><br></div><div>Good luck, Bill H.</div><div><br></div><div><br><br><di=
v class=3D"gmail_quote">On Fri, Mar 1, 2013 at 9:24 AM, John Barrett <span =
dir=3D"ltr">&lt;<a href=3D"mailto:jbarrett@carbinge.com" target=3D"_blank">=
jbarrett@carbinge.com</a>&gt;</span> wrote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex"><br>
Am about to pressure check the cabin and I&#39;m wondering if the tune with=
 the red plastic cap In the attached photo should be left as is or if it ne=
eds to be plumbed somehow.<br>
<br>
Thanks<br>
<span class=3D"HOEnZb"><font color=3D"#888888">John<br>
</font></span><br><br>
<br>
<br>
Sent from my iPhone<br>--<br>
For archives and unsub <a href=3D"http://mail.lancaironline.net:81/lists/lm=
l/List.html" target=3D"_blank">http://mail.lancaironline.net:81/lists/lml/L=
ist.html</a><br>
<br></blockquote></div><br></div>

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