REFLECTOR:Mag Timing Slipped?
Chuck Jensen
reflector@tvbf.org
Tue, 10 Feb 2004 11:24:31 -0500
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Ronnie,
Don't feel bad. I've noticed most of my problems are associated with having
a screw loose too.
Chuck
-----Original Message-----
From: reflector-admin@tvbf.org [mailto:reflector-admin@tvbf.org]On Behalf Of
Ronnie Brown
Sent: Tuesday, February 10, 2004 9:58 AM
To: reflector@tvbf.org
Subject: Re: REFLECTOR:Mag Timing Slipped?
Larry,
I think my problem is due to a loose screw holding the points. My I/A buddy
checked the internal timing and it was off. There is good info at
www.sacskyranch.com <http://www.sacskyranch.com>
I will reinstall and monitor my timing more closely. I was surprised to
find the error since the engine has been running flawlessly, compressions
are great 79/80 and the plugs were nice and clean.
Thanks
Ronnie
----- Original Message -----
From: Laurence <mailto:lwcoen@hotmail.com> Coen
To: reflector@tvbf.org <mailto:reflector@tvbf.org>
Sent: Monday, February 09, 2004 11:30 AM
Subject: Re: REFLECTOR:Mag Timing Slipped?
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.
Larry Coen
Std. RG-E
----- Original Message -----
From: Ronnie <mailto:romott@adelphia.net> Brown
To: reflector@tvbf.org <mailto:reflector@tvbf.org>
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><SPAN class=500011816-10022004><FONT face=Arial color=#0000ff
size=2>Ronnie,</FONT></SPAN></DIV>
<DIV><SPAN class=500011816-10022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=500011816-10022004><FONT face=Arial color=#0000ff size=2>Don't
feel bad. I've noticed most of my problems are associated with having a
screw loose too.</FONT></SPAN></DIV>
<DIV><SPAN class=500011816-10022004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=500011816-10022004><FONT face=Arial color=#0000ff
size=2>Chuck</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> reflector-admin@tvbf.org
[mailto:reflector-admin@tvbf.org]<B>On Behalf Of </B>Ronnie
Brown<BR><B>Sent:</B> Tuesday, February 10, 2004 9:58 AM<BR><B>To:</B>
reflector@tvbf.org<BR><B>Subject:</B> Re: REFLECTOR:Mag Timing
Slipped?<BR><BR></FONT></DIV>
<DIV><FONT size=2></FONT><FONT size=2></FONT><FONT size=2></FONT> </DIV>
<DIV><FONT size=2><FONT size=3>Larry,</FONT> </FONT></DIV>
<DIV><FONT size=2></FONT><BR>I think my problem is due to a loose screw
holding the points. My I/A buddy checked the internal timing and it was
off. There is good info at <A
href="http://www.sacskyranch.com">www.sacskyranch.com</A> <BR><BR>I will
reinstall and monitor my timing more closely. I was surprised to<BR>find
the error since the engine has been running flawlessly, compressions<BR>are
great 79/80 and the plugs were nice and
clean.<BR><BR>Thanks<BR>Ronnie<BR><BR></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=lwcoen@hotmail.com href="mailto:lwcoen@hotmail.com">Laurence
Coen</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=reflector@tvbf.org
href="mailto:reflector@tvbf.org">reflector@tvbf.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 09, 2004 11:30
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: REFLECTOR:Mag Timing
Slipped?</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Ronnie,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>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.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Larry Coen</FONT></DIV>
<DIV><FONT face=Arial size=2>Std. RG-E</FONT></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=romott@adelphia.net href="mailto:romott@adelphia.net">Ronnie
Brown</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=reflector@tvbf.org
href="mailto:reflector@tvbf.org">reflector@tvbf.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, February 09, 2004 7:25
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> REFLECTOR:Mag Timing
Slipped?</DIV>
<DIV><BR></DIV>
<DIV><FONT size=2>
<DIV>I am doing my first condition inspection on my 173 Elite RG and all
is looking great except:</DIV>
<DIV> </DIV>
<DIV>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.</DIV>
<DIV> </DIV>
<DIV>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.</DIV>
<DIV> </DIV>
<DIV>Is it reasonable to think that the points could wear enough to
cause 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></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>
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