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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thank you Rex,</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>It’s not a new
engine, but not old either.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>I will start with the
fuel line, replace it completely, even the clunk. </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>If that doesn’t
work I take the next steps you describe.</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Thanks!!</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'>Patrick</span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span lang=EN-GB
style='font-size:10.0pt;font-family:Arial;color:navy'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 face=Tahoma><span
style='font-size:10.0pt;font-family:Tahoma'>-----Oorspronkelijk bericht-----<br>
<b><span style='font-weight:bold'>Van:</span></b>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>Namens </span></b>Rex LESHER<br>
<b><span style='font-weight:bold'>Verzonden:</span></b> zondag 25 februari 2007
17:01<br>
<b><span style='font-weight:bold'>Aan:</span></b> NSRCA Mailing List<br>
<b><span style='font-weight:bold'>Onderwerp:</span></b> Re: [NSRCA-discussion]
ZDZ mixture change when I fly on the back</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'> </span></font></p>
<div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>Patrick</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
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<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>From your descrition, I at first thought that you might be
having a fuel clunk problem in the tank, simply from having problems while
inverted.</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>But, you also state that it does the same thing during harriers,
which puts all the fuel around the clunk. I suspicion that your
idle mixture is</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>slightly lean. That's what I would try first...
Just open the mixture screw 1/8 turn or a bit more. If that doesn't
work, check the clunk "line" </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>in the fuel tank, it may have a perforation in it. Also,
check the gasket between the carb and the manifold for air leaks.</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>If all of these fail, pull out the low speed air screw and
blow air from an air compressor through it. Don't use more than about 30
lbs. of pressure</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>Sometimes, there's a little junk in the jet passages that causes a
few problems, usually a result of not using an air cleaner, or the air cleaner
gets</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>junk through it. Reguardless of everything mentioned, your
problem is "too lean" in the low speed department.</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>You didn't say wether or not this is a new engine... Even if
it is new, don't discount having junk in the carb. I've been making
a living with </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>chainsaws for over 20 years, and I'm here to tell you...
You wouldn't believe what you'll find in a new motor or carb... A lot of
times, drillings</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>never get blown out of the passages during assembly. Most
all gas engines any more are very stable, well running motors once set up</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>correctly. </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>I hope this helps, let us know what you find...</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>Rex</span></font></p>
</div>
<blockquote style='border:none;border-left:solid black 1.5pt;padding:0cm 0cm 0cm 4.0pt;
margin-left:3.75pt;margin-top:5.0pt;margin-right:0cm;margin-bottom:5.0pt'>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>-----
Original Message ----- </span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>From:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> <a
href="mailto:ppandelaers@pandora.be" title="mailto:ppandelaers@pandora.be">PPandelaers</a>
</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>To:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> <a
href="mailto:mini-iac@yahoogroups.com" title="mailto:mini-iac@yahoogroups.com">mini-iac@yahoogroups.com</a>
; <a href="mailto:gsal@yahoogroups.com" title="mailto:gsal@yahoogroups.com">gsal@yahoogroups.com</a>
; <a href="mailto:nsrca-discussion@lists.nsrca.org"
title="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</a>
</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>Sent:</span></font></b><font size=2 color=black face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:black'> Sunday, February 25,
2007 7:07 AM</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black;
font-weight:bold'>Subject:</span></font></b><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>
[NSRCA-discussion] ZDZ mixture change when I fly on the back</span></font></p>
</div>
<div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'> </span></font></p>
</div>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span style='font-size:10.0pt;font-family:Arial;color:black'>Hi all,</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Have a mixture issue which I suspect more of you may have
experienced, maybe someone knows a cure. </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Running a ZDZ 80 RV in a Yak 54. Prop is a Mejzlik 26x10. MTW-cannister.
Turns about 6200 RPM.</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Engine picks up wonderfully, does great 3D. but, on in
back-flight, the RPM sags a lot from mid- to high-range. Don’t get full
power at all. Flip it around, immediately full power. From Back-flight,
certainly from harrier, if I push it up for a torque, the engine hesitates big
time but never quits.</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>All in all, I run the engine fairly rich, it seems to be very
tolerant to mixture setting as long as it’s on the rich side. I have
tried to lean it out to fix the back-flight issue, but then it doesn’t
pick up as well for 3D.</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Hope someone can help.</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Happy Landings ;-))</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Times New Roman"><span style='font-size:12.0pt;color:black'> </span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=2 color=black
face=Arial><span lang=EN-GB style='font-size:10.0pt;font-family:Arial;
color:black'>Patrick</span></font></p>
<p class=MsoNormal style='margin-left:35.4pt'><font size=3 color=black
face="Lucida Sans"><span style='font-size:12.0pt;font-family:"Lucida Sans";
color:black'>_______________________________________________<br>
NSRCA-discussion mailing list<br>
NSRCA-discussion@lists.nsrca.org<br>
http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</span></font></p>
</blockquote>
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