REFLECTOR:Mag Timing Slipped?
Laurence Coen
reflector@tvbf.org
Mon, 9 Feb 2004 10:30:34 -0600
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Ronnie,
Check the point gap. I seem to remember that in a Slick it is possible =
to have the point clamping screw bottom out if you use the wrong one or =
leave off one of the washers. =20
Larry Coen
Std. RG-E
----- Original Message -----=20
From: Ronnie Brown=20
To: reflector@tvbf.org=20
Sent: Monday, February 09, 2004 7:25 AM
Subject: REFLECTOR:Mag Timing Slipped?
I am doing my first condition inspection on my 173 Elite RG and all is =
looking great except:
When I checked my Slick mag timing, I found it at 32 degrees BTDC. =
Since our Cessna 172 in 10 years never had the timing reset except for =
the 500 hour mandatory inspections of the Bendix dual mag, this has me =
scratching my head. The timing on the Jeff Rose has not changed.
The retaining bolts were tight, an internal inspection of the mag =
reveals nothing (however, I have not checked the internal timing yet) , =
and I KNOW the timing was set correctly (25 degrees BTDC) on this =
Lycoming IO360. I had a low static RPM - 2100 rpms - so we checked =
everything before changing the prop. Any worn parts in the gearing =
would cause the timing to be more retarded.
Is it reasonable to think that the points could wear enough to cause =
the timing to move that much?
Or any other ideas?
THANKS
Ronnie Brown
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<DIV><FONT face=3DArial size=3D2>Ronnie,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Check the point gap. I seem to =
remember that=20
in a Slick it is possible to have the point clamping screw bottom out if =
you use=20
the wrong one or leave off one of the washers. </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>Larry Coen</FONT></DIV>
<DIV><FONT face=3DArial size=3D2>Std. RG-E</FONT></DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dromott@adelphia.net =
href=3D"mailto:romott@adelphia.net">Ronnie=20
Brown</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dreflector@tvbf.org=20
href=3D"mailto:reflector@tvbf.org">reflector@tvbf.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, February 09, 2004 =
7:25=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> REFLECTOR:Mag Timing=20
Slipped?</DIV>
<DIV><BR></DIV>
<DIV><FONT size=3D2>
<DIV>I am doing my first condition inspection on my 173 Elite RG and =
all is=20
looking great except:</DIV>
<DIV> </DIV>
<DIV>When I checked my Slick mag timing, I found it at 32 degrees =
BTDC. =20
Since our Cessna 172 in 10 years never had the timing reset except for =
the 500 hour mandatory inspections of the Bendix dual mag, this =
has me=20
scratching my head. The timing on the Jeff Rose has not =
changed.</DIV>
<DIV> </DIV>
<DIV>The retaining bolts were tight, an internal inspection of the mag =
reveals=20
nothing (however, I have not checked the internal timing yet) , and I =
KNOW the=20
timing was set correctly (25 degrees BTDC) on this Lycoming =
IO360. =20
I had a low static RPM - 2100 rpms - so we checked everything before =
changing=20
the prop. Any worn parts in the gearing would cause the timing =
to be=20
more retarded.</DIV>
<DIV> </DIV>
<DIV>Is it reasonable to think that the points could wear =
enough to cause=20
the timing to move that much?</DIV>
<DIV> </DIV>
<DIV>Or any other ideas?</DIV>
<DIV> </DIV>
<DIV>THANKS</DIV>
<DIV>Ronnie Brown</DIV></FONT></DIV></BLOCKQUOTE></BODY></HTML>
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