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<DIV><FONT face=Arial size=2>It sounds like I may have a pump problem. I
may need to send it in to get it fixed. Do not seem to be able to get is
too rich; even after turning puimp pressure in one turn.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>But it does seem to be somewhat better. Low
to mid-range seems to work just fine. Just going past mod-range on a
upline seems to be a problem.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Randy</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=lee@piedmontmodels.com href="mailto:lee@piedmontmodels.com">Lee
Davis</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 6:22
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: Webra Problem</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff
size=2>Check the high end mix on the ground. If you can set it so the
engine is obviously too rich then you do not have a pump problem. If you
cannot, then replace the pump diaphrams. They can distort if the pump
gets overheated which is not uncommon.</FONT></SPAN></DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff size=2>If
you have a lot of time on the engine you might be due for a rebuild.
Replace the rear bearing, con rod (it tends to get sloppy on the wrist
pin) and ring. Assuming you have an AAR the sleeve will outlast
several ring replacements.</FONT></SPAN></DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff size=2>The
1.60's are cool and all, but the truth is a solid 1.45 will yank an
even overweight pattern plane around like a toy. IMO, stick with
it. If you have a few bucks to spare buy it one of the mixture control
carbs - sweet setup.</FONT></SPAN></DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff size=2>Lee
Davis</FONT></SPAN></DIV>
<DIV><SPAN class=500170122-09062004><FONT face=Arial color=#0000ff
size=2>Piedmont Models</FONT></SPAN></DIV>
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<DIV></DIV>
<DIV class=OutlookMessageHeader lang=en-us 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>Randy<BR><B>Sent:</B> Wednesday, June 09, 2004 1:56
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Webra
Problem<BR><BR></FONT></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></BODY></HTML>