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<DIV><SPAN class=541522015-11062004><FONT face=Arial color=#0000ff size=2>I
agree with Keith, I'm running 3 of these 1.45 AAR's and none of them have a
hi-speed out much farther than 1 turn...I'd say between 1 and 11/4 and I've got
4 threads showing on pump pressure. I use the hangar 9 filters on the jug
and pump inlet. What typically determines my hi-speed needle
setting (believe it or not) is whether I can transition from idle to full
power....one to 2 clicks either way on hi-speed makes the difference.....and I
would think it was a fluke! Except the fact that it works on all 3
engines. I've been successfully running smaller and non-pumped model
airplane engines for over 30 years....this is a little different technique than
I'm used to, but it works for me:)</FONT></SPAN></DIV>
<DIV><SPAN class=541522015-11062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=541522015-11062004><FONT face=Arial color=#0000ff size=2>Chris
White</FONT></SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT face=Tahoma
size=2>-----Original Message-----<BR><B>From:</B> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org]<B>On Behalf Of </B>Keith
Black<BR><B>Sent:</B> Friday, June 11, 2004 12:46 AM<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></BODY></HTML>