REFLECTOR:Mag Timing Slipped?

Laurence Coen reflector@tvbf.org
Mon, 9 Feb 2004 10:30:34 -0600


This is a multi-part message in MIME format.

------=_NextPart_000_002A_01C3EEF7.BFF122D0
Content-Type: text/plain;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

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
------=_NextPart_000_002A_01C3EEF7.BFF122D0
Content-Type: text/html;
	charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=3DContent-Type content=3D"text/html; =
charset=3Diso-8859-1">
<META content=3D"MSHTML 6.00.2800.1276" name=3DGENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=3D#ffffff>
<DIV><FONT face=3DArial size=3D2>Ronnie,</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</DIV>
<DIV><FONT face=3DArial size=3D2>Check the point gap.&nbsp; 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.&nbsp; </FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT>&nbsp;</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>&nbsp;</DIV>
  <DIV>When I checked my Slick mag timing, I found it at 32 degrees =
BTDC.&nbsp;=20
  Since our Cessna 172 in 10 years never had the timing reset except for =

  the&nbsp;500 hour mandatory inspections of the Bendix dual mag, this =
has me=20
  scratching my head.&nbsp; The timing on the Jeff Rose has not =
changed.</DIV>
  <DIV>&nbsp;</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&nbsp;this Lycoming =
IO360.&nbsp;=20
  I had a low static RPM - 2100 rpms - so we checked everything before =
changing=20
  the prop.&nbsp; Any worn parts in the gearing would cause the timing =
to be=20
  more retarded.</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>Is it reasonable to think that the points could wear =
enough&nbsp;to cause=20
  the timing to move that&nbsp;much?</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>Or any other ideas?</DIV>
  <DIV>&nbsp;</DIV>
  <DIV>THANKS</DIV>
  <DIV>Ronnie Brown</DIV></FONT></DIV></BLOCKQUOTE></BODY></HTML>

------=_NextPart_000_002A_01C3EEF7.BFF122D0--