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<DIV dir=ltr align=left><SPAN class=828524702-03062005><FONT face=Arial
color=#0000ff size=2>I took the valve out of the head and chuck it up on dremel
(not so hard). Then, turn it on a dishwashing sponge that has blue
scrubbing thing (green ones, the heavy duty is not recommended). I do it
with a little soap on the wet sponge. After finishing, I remove the
valve from the dremel and hold it with rubber sponge. Then use the
scrubbing sponge on the side where it was chucked up on Dremel. Do it slow
and watch the valve carefully to prevent damage.</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828524702-03062005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV>
<DIV dir=ltr align=left><SPAN class=828524702-03062005><FONT face=Arial
color=#0000ff size=2>Ihncheol Park</FONT></SPAN></DIV>
<DIV dir=ltr align=left><SPAN class=828524702-03062005><FONT face=Arial
color=#0000ff size=2></FONT></SPAN> </DIV><BR>
<DIV class=OutlookMessageHeader lang=en-us dir=ltr align=left>
<HR tabIndex=-1>
<FONT face=Tahoma size=2><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org] <B>On Behalf Of </B>Robert
Harden<BR><B>Sent:</B> Thursday, June 02, 2005 9:33 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> Re: YS-91 AC
problem<BR></FONT><BR></DIV>
<DIV></DIV>
<DIV><FONT face=Arial size=2>I don't remember Bill saying, but you have to
remove the valve stem from the guide first. Then I used a small piece
of fine sandpaper twisted and ran it through the guide up and down until the
carbon was removed. Maybe there is a better way to do this - any one have
suggestions? Now then, so that this doesn't happen again, use a fuel that
has all synthetic oil (no caster oil in it). Hope this helps.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Bob</FONT></DIV>
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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=phoran@vvm.com href="mailto:phoran@vvm.com">Paul Horan</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, June 02, 2005 8:29
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: YS-91 AC problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Ken,</FONT></DIV>
<DIV><FONT face=Arial size=2> What did he tell you to do the
cure the carbon problem.</FONT></DIV>
<DIV><FONT face=Arial size=2>Thanks,</FONT></DIV>
<DIV><FONT face=Arial size=2>Paul</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=mrandmrst@comcast.net href="mailto:mrandmrst@comcast.net">Ken
Thompson</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Thursday, June 02, 2005 7:22
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> YS-91 AC problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Thank you to all who gave me places to look for
my problem.</FONT></DIV>
<DIV><FONT face=Arial size=2>Somebody gave me the thought that maybe it was
carbon deposits on a valve, I'm sorry I don't remember who. I
dismissed this theory because the valves seemed to be operating
properly.</FONT></DIV>
<DIV><FONT face=Arial size=2>Early this morning Mike Darr stopped by to
check out my damaged Excelleron and took a look at my motor for me. He
manually worked the valves and all of a sudden the compression came
back. It looks like there was carbon on the valves after all. He
told me what to do and I should have it fixed as soon as I get back from
Norfolk, a little trip this weekend to go out for the day on the USS
Theodore Roosevelt.</FONT></DIV>
<DIV><FONT face=Arial size=2>Thank you all again and thanks to Mike for
showing me what to do.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Ken
Thompson</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>