Received-SPF: pass
 receiver=logan.com; client-ip=209.85.214.180; envelope-from=david.staten@gmail.com
Message-ID: <504F689B.5090609@gmail.com>
Date: Tue, 11 Sep 2012 11:36:43 -0500
From: Dave <david.staten@gmail.com>
User-Agent: Mozilla/5.0 (Windows NT 6.0; rv:15.0) Gecko/20120824 Thunderbird/15.0
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: MAP line suggestions
References: <list-5756805@logan.com>
In-Reply-To: <list-5756805@logan.com>
Content-Type: multipart/alternative;
 boundary="------------080803030909070403050703"

This is a multi-part message in MIME format.
--------------080803030909070403050703
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit

Use a non-metallic hose then, or a flex braided hose, then firesleeve 
it.. twice if you need to.. wrap it.. insulate it..

Dave

On 9/11/2012 11:02 AM, Ernest Chrisltey wrote:
> On 09/11/2012 10:24 AM, Bill Bradburry wrote:
>> That doesn't look like the rubber vacuum line sold in auto parts 
>> stores.  It
>> looks shiny and like plastic.  I would switch to the auto parts type.
>> I can see probably the two primary injectors right by where the line 
>> melted.
>> That area should not be too hot since fuel is right there. However I 
>> do see
>> the EGT thermocouple line going by the area as well.  That may be
>> transferring heat to the plastic line.
>> Do you have a picture a little farther back to help orientation as to 
>> where
>> we are looking on the engine?
>>
>
> I got the line from Advance Auto, and it was labelled as high-temp MAP 
> line.  I will look to see if I can find something different.
>
> I've attached the best pic I could find to show where I'm pulling the 
> MAP from.  There really doesn't seem to be many options to relocate 
> the pickup as Dave suggests, because the line will still need to loop 
> around to the "bathroom handle" firewall penetration.
>
> Mark, I don't think I have the option to pick up MAP without being 
> near the exhaust unless I completely redesign my intake.  I do have 
> the exhaust completely encased in a .020 stainless box, but I think 
> the issue is that without a blast tube into the encasement, the heat 
> has no where to go.  I also think that air comes off the prop, through 
> the front mounted radiator, and swirls around the engine inside the 
> cowl.  That would blow air past the exhaust and right across the MAP 
> and electrical lines.  But I've not thought of a way to verify this 
> theory.
>
>
>
>
> --
> Homepage:  http://www.flyrotary.com/
> Archive and UnSub:   http://mail.lancaironline.net:81/lists/flyrotary/List.html


--------------080803030909070403050703
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: 7bit

<html>
  <head>
    <meta content="text/html; charset=ISO-8859-1"
      http-equiv="Content-Type">
  </head>
  <body bgcolor="#FFFFFF" text="#000000">
    <div class="moz-cite-prefix">Use a non-metallic hose then, or a flex
      braided hose, then firesleeve it.. twice if you need to.. wrap
      it.. insulate it.. <br>
      <br>
      Dave<br>
      <br>
      On 9/11/2012 11:02 AM, Ernest Chrisltey wrote:<br>
    </div>
    <blockquote cite="mid:list-5756805@logan.com" type="cite">On
      09/11/2012 10:24 AM, Bill Bradburry wrote:
      <br>
      <blockquote type="cite">That doesn't look like the rubber vacuum
        line sold in auto parts stores.&nbsp; It
        <br>
        looks shiny and like plastic.&nbsp; I would switch to the auto parts
        type.
        <br>
        I can see probably the two primary injectors right by where the
        line melted.
        <br>
        That area should not be too hot since fuel is right there.&nbsp;
        However I do see
        <br>
        the EGT thermocouple line going by the area as well.&nbsp; That may
        be
        <br>
        transferring heat to the plastic line.
        <br>
        Do you have a picture a little farther back to help orientation
        as to where
        <br>
        we are looking on the engine?
        <br>
        <br>
      </blockquote>
      <br>
      I got the line from Advance Auto, and it was labelled as high-temp
      MAP line.&nbsp; I will look to see if I can find something different.
      <br>
      <br>
      I've attached the best pic I could find to show where I'm pulling
      the MAP from.&nbsp; There really doesn't seem to be many options to
      relocate the pickup as Dave suggests, because the line will still
      need to loop around to the "bathroom handle" firewall penetration.
      <br>
      <br>
      Mark, I don't think I have the option to pick up MAP without being
      near the exhaust unless I completely redesign my intake.&nbsp; I do
      have the exhaust completely encased in a .020 stainless box, but I
      think the issue is that without a blast tube into the encasement,
      the heat has no where to go.&nbsp; I also think that air comes off the
      prop, through the front mounted radiator, and swirls around the
      engine inside the cowl.&nbsp; That would blow air past the exhaust and
      right across the MAP and electrical lines.&nbsp; But I've not thought
      of a way to verify this theory.
      <br>
      <br>
      <br>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">--
Homepage:  <a class="moz-txt-link-freetext" href="http://www.flyrotary.com/">http://www.flyrotary.com/</a>
Archive and UnSub:   <a class="moz-txt-link-freetext" href="http://mail.lancaironline.net:81/lists/flyrotary/List.html">http://mail.lancaironline.net:81/lists/flyrotary/List.html</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>

--------------080803030909070403050703--