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<p class=MsoNormal><font size=2 color=navy face=Arial FAMILY=SANSSERIF><span
style='font-size:10.0pt;font-family:Arial;color:navy'>Anthony – </span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Here’s a long shot – it might be
fuel foaming causing a lean condition in the air? I had that on my Elan early
on Never identified the lean condition by sound, but had some plugs blow
seals etc and plugs lasted about as you described – a 2”x3”
chunk of foam in the right place around the tank solved the problem. </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>
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<p class=MsoNormal><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma'>-----Original Message-----<br>
<b><span style='font-weight:bold'>From:</span></b> discussion-request@nsrca.org
[mailto:discussion-request@nsrca.org] <b><span style='font-weight:bold'>On
Behalf Of </span></b>Rcmaster199@aol.com<br>
<b><span style='font-weight:bold'>Sent:</span></b> Wednesday, November 12, 2003
9:36 PM<br>
<b><span style='font-weight:bold'>To:</span></b> discussion@nsrca.org<br>
<b><span style='font-weight:bold'>Subject:</span></b> Re: Glow plug failures</span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'> </span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>In a message dated 11/12/2003 1:29:29 PM Eastern Standard
Time, anthonyr105@hotmail.com writes:<br>
<br>
<br>
<br>
</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Subj:<b><span style='font-weight:bold'>Glow plug failures </span></b><br>
Date:11/12/2003 1:29:29 PM Eastern Standard Time<br>
From:<a href="mailto:anthonyr105@hotmail.com">anthonyr105@hotmail.com</a><br>
Reply-to:<a href="mailto:discussion@nsrca.org">discussion@nsrca.org</a><br>
To:<a href="mailto:discussion@nsrca.org">discussion@nsrca.org</a><br>
<i><span style='font-style:italic'>Sent from the Internet </span></i><br>
<br>
<br>
<br>
<br>
<br>
Have an Os 1.40 that has a pretty healthy appetite for glow plugs. First, <br>
was blowing the seal so I added a head shim and pulled out the pipe a <br>
little. Now the just seem to loose conductivity. Engine runs fine but go to <br>
restart for next flight and nobody home. Typically lifespan is about 30 <br>
flights.<br>
Using Type F, S&W 20% nitro 16%syn 2%castor fuel, Es pipe at 23" with
Mac 2 <br>
1/"4 header, Apc 16.5 *12W resulting in a peak setting around 8100 and a <br>
launch setting of 8000. Have another head shim on order and will try a <br>
little longer pipe if the weather ever improves. Any other suggestions?<br>
<br>
TIA<br>
<br>
Anthony</span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><br>
<br>
Anthony,<br>
<br>
The prop may be a little on the lite side for the engine, but others use so
that's probably not the main issue. I would use a different fuel and experiment
a bit. Try Kool Power or Powermaster that other fellows are using with great
success. <br>
<br>
My favorite is a 50:50 mix of 30% CP heli blend and 5% standard CP, and a 17x12
std APC<br>
<br>
MattK</span></font></p>
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