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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi Guys,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
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 size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
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 size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Thanks,</span></font><o:p></o:p></p>
<p class=MsoNormal><st1:PersonName w:st="on"><font size=2 face=Arial><span
style='font-size:10.0pt;font-family:Arial'>Jim</span></font></st1:PersonName><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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