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<DIV><FONT face=Arial size=2>I hate to bug Clarence with the problem. Since the
engine runs well the only real problem is it slobbers on the airplane.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have a Lathe and Mill in the shop. Set up will be
tricky, the plug is pretty deeply recessed. The risk to the threads by using a
pilot rod in the hole is high.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I believe I will anneal a plug washer and try a
little of the liquid gasket goo. If that don't solve the problem I will just
accept the mess. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>John Ferrell W8CCW<BR>"My Competition is not my
enemy"<BR><A href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
<BLOCKQUOTE
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=ehaury@houston.rr.com href="mailto:ehaury@houston.rr.com">Earl
Haury</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, August 26, 2006 11:44
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Engine
problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>John</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Assuming that the problem is lack of
perpendicularity between the threaded hole and the gasket surface - find a
"friend" that will set the thing up in a mill aligned on the threaded hole,
then touch the gasket surface with a mill to square. (You might give Clarence
a call also - unusual that he would not catch this.)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Earl</FONT></DIV>
<BLOCKQUOTE
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=johnferrell@earthlink.net
href="mailto:johnferrell@earthlink.net">John Ferrell</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, August 26, 2006 10:24
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] Engine
problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>The head & cylinder are all one part on the
YS91AC. I was unable to remove the liner when the head was sent out for the
helicoil. It is stuck pretty good. I can see a cascade of problems if I try
to replace that part alone. Considering the price of a new engine I am
reluctant to spend a lot on this one!</FONT></DIV>
<DIV><FONT face=Arial size=2>Hopefully, someone will suggest a simple
fix.</FONT></DIV>
<DIV> </DIV>
<DIV>John Ferrell W8CCW<BR>"My Competition is not my
enemy"<BR><A href="http://DixieNC.US">http://DixieNC.US</A><BR></DIV>
<BLOCKQUOTE
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=flyinbill1@bellsouth.net
href="mailto:flyinbill1@bellsouth.net">William C. Harden</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">'NSRCA Mailing List'</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Saturday, August 26, 2006 10:48
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion]
Engine problem</DIV>
<DIV><BR></DIV>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">I suggest that
you buy a replacement head because that is the only item you need.
In the future, if you have a stripped glow plug thread in the head then
simply replace the head and avoid this kind of problem. The heli
coil method works, but it is better in my opinion to have a new
head. A new head really doesn’t cost that much.
<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial">Bill<o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial color=navy size=2><SPAN
style="FONT-SIZE: 10pt; COLOR: navy; FONT-FAMILY: Arial"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<DIV class=MsoNormal style="TEXT-ALIGN: center" align=center><FONT
face="Times New Roman" size=3><SPAN style="FONT-SIZE: 12pt">
<HR tabIndex=-1 align=center width="100%" SIZE=2>
</SPAN></FONT></DIV>
<P class=MsoNormal><B><FONT face=Tahoma size=2><SPAN
style="FONT-WEIGHT: bold; FONT-SIZE: 10pt; FONT-FAMILY: Tahoma">From:</SPAN></FONT></B><FONT
face=Tahoma size=2><SPAN style="FONT-SIZE: 10pt; FONT-FAMILY: Tahoma"> <A
href="mailto:nsrca-discussion-bounces@lists.nsrca.org">nsrca-discussion-bounces@lists.nsrca.org</A>
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <B><SPAN
style="FONT-WEIGHT: bold">On Behalf Of </SPAN></B>John Ferrell<BR><B><SPAN
style="FONT-WEIGHT: bold">Sent:</SPAN></B> Saturday, August 26, 2006 9:44
AM<BR><B><SPAN style="FONT-WEIGHT: bold">To:</SPAN></B> <st1:PersonName
w:st="on">NSRCA Mailing List</st1:PersonName><BR><B><SPAN
style="FONT-WEIGHT: bold">Subject:</SPAN></B> [NSRCA-discussion] Engine
problem</SPAN></FONT><o:p></o:p></P></DIV>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><o:p> </o:p></SPAN></FONT></P>
<DIV>
<P class=MsoNormal><STRONG><B><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">General engine
problem</SPAN></FONT></B></STRONG><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">I have a YS91AC that runs fine
but leaks fuel around the glow plug.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">It appears that the plug is
not square to the head casting so the </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">copper gasket does not
completely seal the joint. </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Before I take the problem to
my machinist son-in-law are there </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">any suggestions as to how I
might resolve the problem?</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><STRONG><B><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">History:</SPAN></FONT></B></STRONG><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Bought engine at deep discount
with damaged threads and had </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Clarence Lee install helicoil
insert. The first owner was full scale </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">engine mechanic so I expect
the problem was from the factory.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">New YS110 is listed at $329,
new head-cylinder/sleeve about $150.</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">My personal threshold is not
to spend more than 1/3 the price of a </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">new replacement in repair
parts. </SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">Ideas?</SPAN></FONT><o:p></o:p></P>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial"> <o:p></o:p></SPAN></FONT></P></DIV>
<DIV>
<P class=MsoNormal><FONT face=Arial size=3><SPAN
style="FONT-SIZE: 12pt; FONT-FAMILY: Arial">John Ferrell
W8CCW<BR>"My Competition is not my enemy"<BR><A
href="http://DixieNC.US">http://DixieNC.US</A></SPAN></FONT><o:p></o:p></P></DIV></DIV>
<P>
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