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<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></BODY></HTML>