Sender: <marv@lancaironline.net>
To: lml@lancaironline.net
Date: Mon, 16 Jul 2007 12:53:29 -0400
Message-ID: <redirect-2180705@logan.com>
Received-SPF: pass
 receiver=logan.com; client-ip=68.168.78.211; envelope-from=glcasey@adelphia.net
Mime-Version: 1.0 (Apple Message framework v752.2)
In-Reply-To: <list-2180067@logan.com>
References: <list-2180067@logan.com>
Content-Type: multipart/alternative; boundary=Apple-Mail-4-123691861
From: Gary Casey <glcasey@adelphia.net>
Subject: Re: L360 Fuel pressure


--Apple-Mail-4-123691861
Content-Transfer-Encoding: 7bit
Content-Type: text/plain;
	charset=US-ASCII;
	delsp=yes;
	format=flowed

In contrast to the Continental system, the Lycoming (Precision  
Airmotive, a.k.a. Bendix) system only needs enough pressure to supply  
the fuel - the pressure level has no influence on the fuel flow  
rate.  The system needs something over 11 psi to operate, and 15 is  
more than enough.  There is usually no reason to turn on the electric  
pump unless fuel flow is interrupted.  I think your system is  
behaving normally.

Gary Casey

>
> What fuel pressure range should I be seeing for a Lycoming IO-360  
> in a Lancair 360 (N360DE)?
>
>
>
> The fuel pressure is indicating between 16 and 18 without the boost  
> pump on.  When I go to altitudes above 6,000 feet, the fuel  
> pressure drops a pound or two so I turn on the boost pump.  With  
> the boost pump on fuel pressure in indicated between 18 and 20 PSI.
>
> Randy Hartman

--Apple-Mail-4-123691861
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html;
	charset=ISO-8859-1

<HTML><BODY style=3D"word-wrap: break-word; -khtml-nbsp-mode: space; =
-khtml-line-break: after-white-space; ">In contrast to the Continental =
system, the Lycoming (Precision Airmotive, a.k.a. Bendix) system only =
needs enough pressure to supply the fuel - the pressure level has no =
influence on the fuel flow rate.=A0 The system needs something over 11 =
psi to operate, and 15 is more than enough.=A0 There is usually no =
reason to turn on the electric pump unless fuel flow is interrupted.=A0 =
I think your system is behaving normally.<DIV><BR =
class=3D"khtml-block-placeholder"></DIV><DIV>Gary =
Casey</DIV><DIV><BR><DIV><BLOCKQUOTE type=3D"cite"><DIV =
style=3D"margin-top: 0px; margin-right: 0px; margin-bottom: 0px; =
margin-left: 0px; min-height: 14px; "><BR></DIV> <DIV =
class=3D"Section1"><P class=3D"MsoNormal" =
style=3D"margin-right:137.25pt"><FONT size=3D"2" color=3D"black" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:black">What fuel =
pressure range should I be seeing for a Lycoming IO-360 in a Lancair 360 =
(N360DE)?</SPAN></FONT><FONT size=3D"2" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt; =
font-family:Arial"><O:P></O:P></SPAN></FONT></P><P class=3D"MsoNormal" =
style=3D"margin-right:137.25pt"><FONT size=3D"2" color=3D"black" =
face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:black">=A0</SPAN></FONT>=
<FONT size=3D"2" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial"><O:P></O:P></SPAN></FONT></P>=
<P class=3D"MsoNormal" style=3D"margin-right:137.25pt"><FONT size=3D"2" =
color=3D"black" face=3D"Arial"><SPAN =
style=3D"font-size:10.0pt;font-family:Arial;color:black">The fuel =
pressure is indicating between 16 and 18 without the boost pump on. =
=A0When I go to altitudes above 6,000 feet, the fuel pressure drops a =
pound or two so I turn on the boost pump. =A0With the boost pump on fuel =
pressure in indicated between 18 and 20 PSI.</SPAN></FONT></P><P =
class=3D"MsoNormal"><SPAN class=3D"EmailStyle18"><FONT size=3D"2" =
color=3D"navy" face=3D"Arial"><SPAN style=3D"font-size:10.0pt">Randy =
Hartman</SPAN></FONT></SPAN></P></DIV></BLOCKQUOTE></DIV></DIV></BODY></HT=
ML>=

--Apple-Mail-4-123691861--