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<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>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
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