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<DIV><FONT face=Arial size=2>Jim,</FONT></DIV>
<DIV><FONT face=Arial size=2>I had the same problem, clean on a long pipe, and
gobbs of oil everywhere when I started using the short pipe. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I changed engines and the new one is very clean and
dry. Something is going on with my other engine to cause so much oil. Same as
you, all bolts are tight. Vincente Bortone was having the same mess of a problem
with a new engine and short pipe. I believe he told me it was the
front bearing causing the mess. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Todd</FONT></DIV>
<DIV><FONT face=Arial size=2></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=jim.woodward@baesystems.com
href="mailto:jim.woodward@baesystems.com">Woodward, Jim</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> Tuesday, December 11, 2007 12:49
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Hatori Short
Pipe O-Rings</DIV>
<DIV><BR></DIV>
<DIV><FONT size=2>
<DIV class=Section1>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Hi
Guys,<O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">What is the final verdict on these
O-rings? Will a warm run “melt” the O-ring? Does the viton
replacement fit tight enough over the header? Recently my plane is
getting really messy, where as before there wasn’t a drop of burnt fuel ahead
of the exhaust stinger. I replaced the o-ring but still had the
mess. I pull the motor last night and checked out everything and the
motor looks great, bolts were tight, with no indication of any leakage from
the motor or header to motor/flange attachment.
<O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">I am using the Nishioka spring
clamp mount. All things considered and experienced, I think I prefer the
stock Hatori mount that comes with the pipe. The Nishioka seems to allow
for more fore and aft pipe slippage during running due to the thin vertical
white plastic supports (checked while running the plane upside down to try and
determine spray pattern and such - in which I didn’t find one, which
leads me to believe that it starts to happen maybe later in the flight or heat
cycle, versus the small amount of running I did as a cursory
check.<O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial"><O:P></O:P></SPAN></FONT></P>
<P class=MsoNormal><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Thanks,</SPAN></FONT><O:P></O:P></P>
<P class=MsoNormal><ST1:PERSONNAME w:st="on"><FONT face=Arial size=2><SPAN
style="FONT-SIZE: 10pt; FONT-FAMILY: Arial">Jim</SPAN></FONT></ST1:PERSONNAME><O:P></O:P></P>
<P class=MsoNormal><FONT face="Times New Roman" size=3><SPAN
style="FONT-SIZE: 12pt"><O:P></O:P></SPAN></FONT></P></DIV></FONT></DIV>
<DIV><FONT color=black><SPAN
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<DIV><FONT color=black><SPAN
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