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References: <list-4672863@logan.com>
To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Apex seals and MAP table corruption?
Date: Wed, 12 Jan 2011 23:22:45 -0500
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Isn't the engine running soley on the primaries when it is at idle? Wouldn=
't that explain it's not wanting to run when you cut off the primaries at=
 idle?

Brian Trubee






-----Original Message-----
From: Bill Bradburry <bbradburry@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Sent: Wed, Jan 12, 2011 6:45 pm
Subject: [FlyRotary] Apex seals and MAP table corruption?



Chris, what is the latest scoop on the stuck apex seals?  Did they free up=
?
=20
I currently have every thing (cowl, inspections plates, etc.) opened up so=
 I can=E2=80=99t investigate this further right now, but the last time I=
 taxied my plane, I noticed that it was really lean at idle (took mixture=
 knob to 4 pm) and when I ran it up, I could only get a little over 6K (pr=
evious would go to 6900!) rpm and the mixture knob full rich would not bri=
ng the mixture bar graph visible.  I am pretty certain that my MAP table=
 is corrupted.  This is the first time this has happened to me.
=20
I am pretty certain that it was the time before that I switched the CPU fr=
om =E2=80=9CA=E2=80=9D to =E2=80=9CB=E2=80=9D and tested my coils.  This=
 was the first time I had done this.  I normally just run it in =E2=80=9CA=
=E2=80=9D and am trying to get the tuning in so I can copy that to =E2=80=
=9CB=E2=80=9D.=20
Also, when I test the injectors=E2=80=A6I have only done this at idle, if=
 I disable the secondary, it stumbles, but keeps running.  When I disable=
 the primary, it would die if I didn=E2=80=99t immediately switch it back.=
  Sounds like the cold start might not be engaging on the primary???  Does=
 anybody have any suggestions?
=20
Those of you who have had your MAP table corrupted, was a switch between=
 CPUs and or coil testing involved prior to the problem?  Could there be=
 some involvement here???
=20
Bill B


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<font color=3D'black' size=3D'2' face=3D'arial'>
<div>Isn't the engine running soley on the primaries when it is at idle?=
 Wouldn't that explain it's not wanting to run when you cut off the primar=
ies at idle?</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: Wed, Jan 12, 2011 6:45 pm<br>
Subject: [FlyRotary] Apex seals and MAP table corruption?<br>
<br>


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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">Chris, what is the=
 latest scoop on the stuck apex seals?&nbsp; Did they free up?</SPAN></FON=
T></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">I currently have ev=
ery thing (cowl, inspections plates, etc.) opened up so I can=E2=80=99t in=
vestigate this further right now, but the last time I taxied my plane, I=
 noticed that it was really lean at idle (took mixture knob to 4 pm) and=
 when I ran it up, I could only get a little over 6K (previous would go to=
 6900!) rpm and the mixture knob full rich would not bring the mixture bar=
 graph visible.&nbsp; I am pretty certain that my MAP table is corrupted.&=
nbsp; This is the first time this has happened to me.</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">I am pretty certain=
 that it was the time before that I switched the CPU from =E2=80=9CA=E2=80=
=9D to =E2=80=9CB=E2=80=9D and tested my coils.&nbsp; This was the first=
 time I had done this.&nbsp; I normally just run it in =E2=80=9CA=E2=80=9D=
 and am trying to get the tuning in so I can copy that to =E2=80=9CB=E2=80=
=9D. </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">Also, when I test=
 the injectors=E2=80=A6I have only done this at idle, if I disable the sec=
ondary, it stumbles, but keeps running.&nbsp; When I disable the primary,=
 it would die if I didn=E2=80=99t immediately switch it back.&nbsp; Sounds=
 like the cold start might not be engaging on the primary???&nbsp; Does an=
ybody have any suggestions?</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">Those of you who ha=
ve had your MAP table corrupted, was a switch between CPUs and or coil tes=
ting involved prior to the problem?&nbsp; Could there be some involvement=
 here???</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>
</div>
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