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<DIV><FONT face=Arial size=2>Ron: I can gently pump fuel through my OS 140
pump,so presumably one could also blow through it in the direction of normal
fuel flow.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Can you lean your idle adjustment anymore? Or
does it suddenly go rich after a few seconds at peak RPM? If it takes a
few seconds to go rich,it might still be too rich on main needle.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Good luck,,,,,,,,Dave</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=ronlock@comcast.net href="mailto:ronlock@comcast.net">ronlock</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> Sunday, May 11, 2003 2:08 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> OS 1.40 Dies at Throttle
Up</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Hi all,</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have an OS 1.40 with only 15 flights
on it. Break in and first 15 flights</FONT></DIV>
<DIV><FONT face=Arial size=2>over last couple of months were
fine. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Yesterday first two flights were
fine. Carried plane to take off position for</FONT></DIV>
<DIV><FONT face=Arial size=2>third flight, engine went rich and died
at throttle up. Re-started and</FONT></DIV>
<DIV><FONT face=Arial size=2>got same result. Changed to new OS-F
plug, and went to lighter</FONT></DIV>
<DIV><FONT face=Arial size=2>load prop. Same result. Set
high speed needle to near peak.</FONT></DIV>
<DIV><FONT face=Arial size=2>Same result. Been using same jug of
15% nitro fuel for all flights.</FONT></DIV>
<DIV><FONT face=Arial size=2>Pipe is Bolly 26 inches piston face to
baffel- same as first 15 flights.</FONT></DIV>
<DIV><FONT face=Arial size=2>Ive checked fuel lines, tank, remote needle,
carb, for leaks, and for</FONT></DIV>
<DIV><FONT face=Arial size=2>flow - all seems OK.
</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I discovered I can blow air thru the pump
</FONT><FONT face=Arial size=2>in the direction of fuel flow,
</FONT></DIV>
<DIV><FONT face=Arial size=2>but not backwards.
Anyone know, </FONT><FONT face=Arial size=2>is that normal?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Other suggestions? - What changed
between 15th and attempt at</FONT></DIV>
<DIV><FONT face=Arial size=2>16th flight?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Thanks, Ron
Lockhart</FONT></DIV></BLOCKQUOTE></BODY></HTML>