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<DIV><FONT face=Arial size=2>Stu, when the engine is running, and well warmed
up, run it up and get it at a higher RPM, and watch for any sign of bubbles
in the fuel lines.That is an indication of the extra heat Ron mentioned from a
bad bearing/tight bearing/shaft. Some AC's really suffered from that problem.
Also had a slightly bent shaft cause heat in the front end. Might also check
valve cover gasket/seal ( sand the cover flat) since that could give similar
symptoms after everything gets warmed up. I assume you have already checked the
box cover and gaskets.</FONT></DIV>
<DIV><FONT face=Arial size=2>Jerry</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=schale@optonline.net href="mailto:schale@optonline.net">Stuart
Chale</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">General pattern discussion</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Sunday, July 13, 2008 9:53 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] 120 AC
issues</DIV>
<DIV><BR></DIV>Sure I just get upstairs after pulling the motor apart again
and swapping out the cylinder liner for one from another motor. Looked
almost new no burn marks but my son is getting frustrated with little flying
time each time at the field so I changed it just in case. Put both
motors back together reinstalled the motor in the plane. Found a new
muffler in the box, put that on. Only to find that I should have changed
the front bearing as well :)<BR>Can you be a little quicker next time
Ron? :)<BR>If this doesn't work next time the bearing and anything else
suggested. Bearings feel fine though. Engine was really almost
new. Not even much carbon or varnish at the
valves.<BR>Thanks,<BR>Stu<BR><BR><A class=moz-txt-link-abbreviated
href="mailto:ronclark51@comcast.net">ronclark51@comcast.net</A> wrote:
<BLOCKQUOTE
cite=mid:071320081346.24982.487A073900034467000061962205889116CECA059D0E040C02019D@comcast.net
type="cite">
<DIV>Stuart,</DIV>
<DIV>I've had the same problem before. It was the front bearing. The bearing
heats up the front of the motor, then the regulator, vaporizing the fuel.
Better known as vapor lock.</DIV>
<DIV> </DIV>
<DIV>Ron.....................</DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: rgb(16,16,255) 2px solid">--------------
Original message -------------- <BR>From: Stuart Chale <A
class=moz-txt-link-rfc2396E
href="mailto:schale@optonline.net"><schale@optonline.net></A> <BR>I
wouldn't have thought about the pipe. I should have
another.<BR>Thanks,<BR>Stuart<BR><BR><A class=moz-txt-link-abbreviated
href="mailto:RUDDERCABL@aol.com"
moz-do-not-send="true">RUDDERCABL@aol.com</A> wrote:
<BLOCKQUOTE cite=mid:cf2.382570e3.35ab5288@aol.com type="cite">
<META content="MSHTML 6.00.2900.3354" name=GENERATOR><FONT
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<DIV>
<DIV>In a message dated 7/12/2008 11:33:24 PM Eastern Daylight Time, <A
class=moz-txt-link-abbreviated href="mailto:schale@optonline.net"
moz-do-not-send="true">schale@optonline.net</A> writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid"><FONT
style="BACKGROUND-COLOR: transparent" face=Arial color=#000000
size=2>I'll have to pull it a part again and see if I see anything
with the sleeve.<BR>Anyone else have any
thoughts?<BR>Thanks,<BR>Stu<BR></FONT></BLOCKQUOTE></DIV>
<DIV>Sure do.</DIV>
<DIV> </DIV>
<DIV>Try a different pipe. I know a flyer who had this same problem some
years ago, not with an AC though. He tried everything and the problem
kept hounding him. Turned out that the pipe was plugging up when it
heated up and restricting the exhuast flow. </DIV>
<DIV> </DIV>
<DIV>Robert</DIV></FONT><BR><BR><BR>
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<TD>
<DIV class=headerdisplayname style="DISPLAY: inline">Subject:
</DIV>Re: [NSRCA-discussion] 120 AC issues</TD></TR>
<TR>
<TD>
<DIV class=headerdisplayname style="DISPLAY: inline">From:
</DIV>Stuart Chale <A class=moz-txt-link-rfc2396E
href="mailto:schale@optonline.net"><schale@optonline.net></A></TD></TR>
<TR>
<TD>
<DIV class=headerdisplayname style="DISPLAY: inline">Date: </DIV>Sun,
13 Jul 2008 12:51:04 +0000</TD></TR>
<TR>
<TD>
<DIV class=headerdisplayname style="DISPLAY: inline">To: </DIV>General
pattern discussion <A class=moz-txt-link-rfc2396E
href="mailto:nsrca-discussion@lists.nsrca.org"><nsrca-discussion@lists.nsrca.org></A></TD></TR></TBODY></TABLE>
<TABLE class=header-part2 cellSpacing=0 cellPadding=0 width="100%"
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<TD>
<DIV class=headerdisplayname style="DISPLAY: inline">To: </DIV>General
pattern discussion <A class=moz-txt-link-rfc2396E
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