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To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Re: Engine Tuning
Date: Fri, 13 May 2011 20:35:01 -0400
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OAT was up around 45-50 if I recall correctly.

Brian Trubee






-----Original Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Fri, May 13, 2011 4:03 pm
Subject: [FlyRotary] Re: Engine Tuning



Brian,
=20
What is the OAT when you are running at 175?
=20
Bill B
=20


From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On Be=
half Of bktrub@aol.com
Sent: Friday, May 13, 2011 5:35 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Engine Tuning

=20


Since the weather has been cooperating lately, I've had the opportunity to=
 put a few more hours on the airplane. On the ground, I can go from an idl=
e up to full throttle and the engine will be smooth. But when I take off,=
 it seems that as soon as I'm up a few hundred feet off the runway, I get=
 hellacious backfiring at full throttle. I can mitigate it a bit by thrott=
ling back to about 5100 rpm, and turning the mixture knob to near full ric=
h. It's getting to be a bit nerve wracking to take off thinking I've got=
 it smoothed out and then get a series of hand grenades going off under my=
 butt. I'm thinking that I'm still running too lean up at map address 106=
 or so. So, I go into the edit page and richen up the mixture around those=
 addresses. I think I'm creeping up on smooth full throttle running.

=20

The good news is that my coolant runs at 175 degrees and oil at less- so=
 the cooling is more than effective, I just need to close up my air inlet=
 a bit or restrict the outflow.

=20

Brian Trubee



----------MB_8CDDFE5E5628CDD_1810_65486_Webmail-d122.sysops.aol.com
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<font color=3D'black' size=3D'2' face=3D'arial'>
<div><FONT face=3D"Arial, Helvetica, sans-serif">OAT was up around 45-50=
 if I recall correctly.</FONT></div>


<div>&nbsp;</div>


<div>Brian Trubee<br>
<br>
</div>


<div style=3D"CLEAR: both"></div>
<br>
<br>


<div style=3D"FONT-FAMILY: arial,helvetica; COLOR: black; FONT-SIZE: 10pt"=
>-----Original Message-----<br>
From: Bill Bradburry &lt;bbradburry@bellsouth.net&gt;<br>
To: Rotary motors in aircraft &lt;flyrotary@lancaironline.net&gt;<br>
Sent: Fri, May 13, 2011 4:03 pm<br>
Subject: [FlyRotary] Re: Engine Tuning<br>
<br>


<div id=3DAOLMsgPart_2_e72c39dc-3f82-4240-a500-9ffa24db5a80>
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<div class=3DSection1>

<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Brian,</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">What is the OAT whe=
n you are running at 175?</SPAN></FONT></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">Bill B</SPAN></FONT=
></div>


<div class=3DMsoNormal><FONT color=3Dnavy size=3D2 face=3DArial><SPAN styl=
e=3D"FONT-FAMILY: Arial; COLOR: navy; FONT-SIZE: 10pt">&nbsp;</SPAN></FONT=
></div>


<div>

<div style=3D"TEXT-ALIGN: center" class=3DMsoNormal align=3Dcenter><FONT=
 size=3D3 face=3D"Times New Roman"><SPAN style=3D"FONT-SIZE: 12pt">
<HR align=3Dcenter SIZE=3D2 width=3D"100%">
</SPAN></FONT></div>


<div class=3DMsoNormal><B><FONT size=3D2 face=3DTahoma><SPAN style=3D"FONT=
-FAMILY: Tahoma; FONT-SIZE: 10pt; FONT-WEIGHT: bold">From:</SPAN></FONT></=
B><FONT size=3D2 face=3DTahoma><SPAN style=3D"FONT-FAMILY: Tahoma; FONT-SI=
ZE: 10pt"> Rotary motors in aircraft [<A href=3D"mailto:flyrotary@lancairo=
nline.net?">mailto:flyrotary@lancaironline.net</A>] <B><SPAN style=3D"FONT=
-WEIGHT: bold">On Behalf Of </SPAN></B><A href=3D"mailto:bktrub@aol.com">b=
ktrub@aol.com</A><br>
<B><SPAN style=3D"FONT-WEIGHT: bold">Sent:</SPAN></B> Friday, May 13, 2011=
 5:35 PM<br>
<B><SPAN style=3D"FONT-WEIGHT: bold">To:</SPAN></B> Rotary motors in aircr=
aft<br>
<B><SPAN style=3D"FONT-WEIGHT: bold">Subject:</SPAN></B> [FlyRotary] Engin=
e Tuning</SPAN></FONT></div>
</div>


<div class=3DMsoNormal><FONT size=3D3 face=3D"Times New Roman"><SPAN style=
=3D"FONT-SIZE: 12pt">&nbsp;</SPAN></FONT></div>


<div>

<div class=3DMsoNormal><FONT color=3Dblack size=3D2 face=3DArial><SPAN sty=
le=3D"FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt"><br>
Since the weather has been cooperating lately, I've had the opportunity to=
 put a few more hours on the airplane. On the ground, I can go from an idl=
e up to full throttle and the engine will be smooth. But when I take off,=
 it seems that as soon as I'm up a few hundred feet off the runway, I get=
 hellacious backfiring at full throttle. I can mitigate it a bit by thrott=
ling back to about 5100 rpm, and turning the mixture knob to near full ric=
h. It's getting to be a bit nerve wracking to take off thinking I've got=
 it smoothed out and then get a series of hand grenades going off under my=
 butt. I'm thinking that I'm still running too lean up at map address 106=
 or so. So, I go into the edit page and richen up the mixture around those=
 addresses. I think I'm creeping up on smooth full throttle running.</SPAN=
></FONT></div>
</div>


<div>

<div class=3DMsoNormal><FONT color=3Dblack size=3D2 face=3DArial><SPAN sty=
le=3D"FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">&nbsp;</SPAN></FO=
NT></div>
</div>


<div>

<div class=3DMsoNormal><FONT color=3Dblack size=3D2 face=3DArial><SPAN sty=
le=3D"FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">The good news is=
 that my coolant runs at 175 degrees and oil at less- so the cooling is mo=
re than effective, I just need to close up my air inlet a bit or restrict=
 the outflow.</SPAN></FONT></div>
</div>


<div>

<div class=3DMsoNormal><FONT color=3Dblack size=3D2 face=3DArial><SPAN sty=
le=3D"FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">&nbsp;</SPAN></FO=
NT></div>
</div>


<div>

<div class=3DMsoNormal><FONT color=3Dblack size=3D2 face=3DArial><SPAN sty=
le=3D"FONT-FAMILY: Arial; COLOR: black; FONT-SIZE: 10pt">Brian Trubee</SPA=
N></FONT></div>
</div>
</div>
</div>
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</font>

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