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<DIV><FONT face=Arial size=2>Ed:<BR><BR>Most of the uses of the check valve are
in the injection line going to the head. This will also prevent the line
from going empty during idle maneuvers, and giving a hesitation during throttle
up, like at the bottom of an outside loop. I have installed one earlier
this year, and it did seem to help this issue. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV>Tony Stillman<BR>Radio South<BR>3702 N. Pace Blvd.<BR>Pensacola, FL
32505<BR>1-800-962-7802<BR><A
href="http://www.radiosouthrc.com">www.radiosouthrc.com</A></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=divesplat@yahoo.com href="mailto:divesplat@yahoo.com">Ed Deaver</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> Monday, August 30, 2004 2:06
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Using check valve in YS
140DZ fuel system</DIV>
<DIV><BR></DIV>
<DIV>I've used the check valve in the vent line from day one without any
problems. Have never noticed any pressure buildup at all in the
tank.</DIV>
<DIV> </DIV>
<DIV>ed<BR><BR><B><I>Peter Pennisi <<A
href="mailto:pentagon.systems@bigpond.com">pentagon.systems@bigpond.com</A>></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><BR><BR>Some
flying buddies of mine have been having a discussion about using
a<BR>check-valve in the fuel system to essentially stop fuel from dripping
out of<BR>the vent line. I have been using this system without any problems
that I<BR>know off for some time. One of the pattern flyers I fly with is
very good<BR>with engines and he doesn't think it is a very good idea to use
the valve in<BR>the DZ fuel system as the tank will always have a slight
pressure build up<BR>inside which may result in inconsistent engine runs. I
don't know about his<BR>theory but I do know that all the Japanese flyers at
the recent CAOCC event<BR>were using check valves in the fuel
system.<BR><BR>I would be interested to hear from anyone who may have an
opinion on
this<BR>subject.<BR><BR><BR>Regards,<BR><BR>Peter<BR><BR><BR>=====================================<BR>#
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