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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'>My son has a DZ170 on Hyde mount that is
also a beast on idle. Wonder if a shim might help it?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Bill Glaze<br>
<b><span style='font-weight:bold'>Sent:</span></b> Saturday, December 05, 2009
1:46 PM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">General
pattern discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [NSRCA-discussion] 1.40 L
vibrations</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Many thanks to Jerry Stebbins for his suggestion to cure the
extreme vibration of my Y.S. 1.40 L. Richard Verano of Y.S. services
was kind enough to send me a head shim for the engine. The shim was
only .0085" thick, but it did the trick. The engine is now markedly
smoother at all rpm ranges, and idles much more smoothly, The transition
to high speed is immediate, with no hesitation or burping. And, it only
cost me 200 rpm at top speed, (WOT.)</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Should I choose to, or need to, obtain the extra rpm's, I
can do so with 30% heli fuel. I can't believe it's the same engine.
It's gone from being an expensive paperweight, to a viable powerplant.</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Many thanks to all who replied; this list is such a great
source of help!</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Bill Glaze</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>NSRCA 2388</span></font><o:p></o:p></p>
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