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<DIV><FONT face=Arial size=2>My guess is that the pump needs cleaning. But
I am not comfortable doing that. Really only two pattern fliers around
here and the other is a Dingo man.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Through the good news is that we have 4 or 5 guys
are practicing sportsman for my contest in August. A new flier is
practicing with a Quest (OS120 SurpassII) which sure seems to fly
nice.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Randy</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=rcsteve@tcrcm.org href="mailto:rcsteve@tcrcm.org">RC Steve
Sterling</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> Friday, June 11, 2004 2:12 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Webra Problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial color=#0000ff size=2><SPAN class=647120806-11062004>All
it takes is a speck of contamination in the pump diaphrams-- I just had a very
small speck of plastic (hair size) and it didn't pump well. Cleaned it
out, all was well. Aways run a filter before the pump. This one got by my
filter.</SPAN></FONT></DIV>
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<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> <A
href="mailto:discussion-request@nsrca.org">discussion-request@nsrca.org</A>
[mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Keith
Black<BR><B>Sent:</B> Thursday, June 10, 2004 10:46 PM<BR><B>To:</B>
discussion@nsrca.org<BR><B>Subject:</B> Re: Webra
Problem<BR><BR></FONT></DIV>
<DIV><FONT face=Arial size=2>Three turns out on the high-end needle, holy
smoke! You must have your pump pressure really low or have pump problems. My
needle is around 1.5 turns or less out. I'm wondering if the previous owner
didn't switch to the OS 140 because he just couldn't get the Webra adjusted
correctly? If this is the case he may have messed up the settings on the
pump. It doesn't sound like your pump is old enough to have worn out, maybe
it has debris in it. Do you, and did the previous owner, use a fuel filter
in front of the pump?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Another thing to watch out for is poor
performance due to bearing wear. When I first started running the
Bully/Webra I was pleased with its performance after some of the local guys
gave me some pointers on how to get it tuned correctly, but toward the end
of the season when the weather got a bit cooler it stopped running very
well. I assumed the weather change required adjusting the mixtures but I
just couldn't seem to get it right this time and often it would bog down at
the top of uplines. Then suddenly one day it died in mid air and when I
landed I found that the prop could barely be turned, the bearings had
gone out! The poor running prior to this was a warning sign. Luckily there
was no major damage to the engine and upon changing out the
bearings my good running motor was back to its excellent performance and I
no longer had any adjustment problems.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'd open the engine and look at the bearings,
also, as Lee mentioned, if you can't get it really rich you probably have a
pump problem, three turns is far greater than what I've seen on the needle
adjustment. As to the tank placement, you don't need to move it to the
firewall if the pump is working correctly. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>If you have someone local that knows a lot
about pumped pattern engines then I'd suggest you seek their
assistance.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Good luck,</FONT></DIV>
<DIV><FONT face=Arial size=2>Keith Black</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=randy10926@comcast.net
href="mailto:randy10926@comcast.net">Randy</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 10, 2004 10:01
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Webra Problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>I got the engine new used last year. It
ia a AAR. Did not fly that much last year; but the engine mostly ran
well. Sometime go a little rich and lose a little vertical.
Has been less reliable this year after the winter.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Throttle up before vertical and bogges part
way up about half the time.replaced fuel tank earlier this
week. Turned pump pressure in one turn today. Have high
end around 3 turns out. I see smoke on the ground, but much in the
air. Seem to bog more on the latter half of the tank. Moved
tank to just in front of wing tube to shorten line to pump;but did not see
any change.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>No idea how many flights before I got it, but
not that many as owner decided to stay with OS 140.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am going to clean carb out in the
morning. And check to see if the pump pressure is at four
threads.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Randy</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=tkeithb@comcast.net href="mailto:tkeithb@comcast.net">Keith
Black</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> Wednesday, June 09, 2004 2:12
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Webra Problem</DIV>
<DIV><FONT face=Arial size=2></FONT><FONT face=Arial
size=2></FONT><BR></DIV>
<DIV><FONT face=Arial size=2>Randy, </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Is the Webra new (or new to
you)?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Has it been running well and now it's not
doing so well or has it always had problems?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Has the pump ever been adjusted since it
was new?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>When loosing power on the uplines is it
wide open then bogging down after being in the upline for a while, or
are you increasing throttle while in the upline and then it's
coughing?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>How much smoke does it blow when wide open
in level flight?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>How many flights do the bearings have on
them?</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Keith Black</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=randy10926@comcast.net
href="mailto:randy10926@comcast.net">Randy</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> Wednesday, June 09, 2004
12:55 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Webra Problem</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>My webra 145 with a normal carbo seems to
be losing power on the up lines. It seems to me that the pump
should delive a near constant flow of fuel. So I should not need
to have is real rich on the high end to handle the up lines. But
still losing power on uplines, so have been richening it.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Low end seems
fine.</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>