<head><style>body{font-family: Geneva,Arial,Helvetica,sans-serif;font-size:9pt;background-color: #ffffff;color: black;}</style></head><body id="compText">Ron, <br><br>A restricted header opening will definitely contribute to power loss. <br><br>What type of fuel are you using? When was the last time you have the DZ overhauled? even though, the Coolpower heli runs really clean, I still take apart and scrape off some carbon build-up around the valves and piston head after about 200 flights. <br><br>Adrian<br><br><br><blockquote style="border-left: 2px solid rgb(0, 0, 255); padding-left: 5px; margin-left: 0px;">-----Original Message-----
<br>From: Ron Hansen <rcpilot@wowway.com>
<br>Sent: May 18, 2009 8:51 PM
<br>To: nsrca-discussion@lists.nsrca.org
<br>Subject: [NSRCA-discussion] 140 DZ and Hatori Header
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<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">This weekend I noticed a 1000 rpm loss in power with my 140
DZ. <span style=""> </span>While taking the engine out I
notice a significant amount of soot buildup at the entrance of the <span class="SpellE">Hatori</span> header. <span style=""> </span>Has anyone ever experienced this before?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">I know it could be the cause of my loss of power but is this
amount of buildup to be expected over several years of use?<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">I’m wondering whether there could be any other issues
with the engine that could have contributed to this buildup.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Ultimately I will have to put the engine on the test stand
and try it out with a clean header.<o:p></o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font size="2" face="Arial"><span style="font-size: 10pt; font-family: Arial;">Ron<o:p></o:p></span></font></p>
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