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<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff
size=2>Verne</FONT></SPAN></DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff size=2>I may
be late, but when I changed mine, I tapped the crank out using a soft wood piece
before I heated the case and tapped the bearing out. for what it is
worth.</FONT></SPAN></DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff size=2>Sounds
like you already have the crank and the bearing out
together?</FONT></SPAN></DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff size=2>Bryan
Kennedy</FONT></SPAN></DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff size=2>NSRCA
1744</FONT></SPAN></DIV>
<DIV><SPAN class=052253818-02072003><FONT face=Arial color=#0000ff size=2>AMA
1744</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>Verne Koester<BR><B>Sent:</B> Wednesday, July 02, 2003 2:40
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re: OS Piston
Pin<BR><BR></FONT></DIV>
<DIV><FONT size=4>Eric,</FONT></DIV>
<DIV><FONT size=4>Not at all like a lecture. Last night about 10:00, I
would've paid good money for it so I could fly today. Between the various
responses, I was able to realize what you just explained and got it off. Next
comes the rear bearing itself which is locked solidly onto the crank. Came out
of the case okay with a little help from my heat gun, but coming off the crank
will be another matter. I've been flying YS for so long now that I've
forgotten how to get through these little chores.</FONT></DIV>
<DIV><FONT size=4></FONT> </DIV>
<DIV><FONT size=4>Thanks,</FONT></DIV>
<DIV><FONT size=4>Verne</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=Eric.Henderson@gartner.com
href="mailto:Eric.Henderson@gartner.com">Henderson,Eric</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Wednesday, July 02, 2003 9:32
AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> RE: OS Piston Pin</DIV>
<DIV><BR></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2>Verne,</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2> The OS 1.40
requires you to slide the conrod on the wrist-pin. There is enough
travel to then allow you to remove the big-end from the main crank
pin.</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2>The problem is that the wrist-pin gets dirty either side of the
conrod. This prevents the conrod moving easily. I have had to reach in there
with a scraper before now. Most times a strip of cloth with Mineral
Spirits can be treaded around the wrist pin and then pulled back and forth
to polish the wrist pin in situ. Sometimes I have had to use Acetone as
well.</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff size=2>To
remove the rod I hook my pinky around the rod and pull it towards the rear
of the engine. It should move about 3/16". It will then come off
with the crank near TDC. With the piston assembly removed I always
polish the writ pin for the next time. </FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff size=2>If
you disassemble the piston assembly make sure you orient the rod the same
way that it came off. There is a chamfer at the front of the phosphor bronze
bearing.</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2>(Hope this did not sound too much like a
lecture?)</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2>Regards,</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003><FONT face=Arial color=#0000ff
size=2>Eric.</FONT></SPAN></DIV>
<DIV><SPAN class=457282013-02072003></SPAN> </DIV>
<DIV><SPAN class=457282013-02072003> </SPAN></DIV>
<DIV class=OutlookMessageHeader 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>Verne Koester<BR><B>Sent:</B> Tuesday, July 01, 2003 11:29
PM<BR><B>To:</B> discussion@nsrca.org<BR><B>Subject:</B> Re: OS Piston
Pin<BR><BR></FONT></DIV>
<DIV><FONT size=4>Troy,</FONT></DIV>
<DIV><FONT size=4>Thanks, I'll try it. Never thought it would work after
seeing the groove machined into the crankcase for connecting rod
clearance.</FONT></DIV>
<DIV><FONT size=4></FONT> </DIV>
<DIV><FONT size=4>Verne</FONT></DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=troy_newman@msn.com href="mailto:troy_newman@msn.com">Troy
Newman</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">discussion@nsrca.org</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, July 01, 2003 11:07
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: OS Piston Pin</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Don't have to remove the piston from the
wrist pin to get the piston, and con rod out for removal of the
crank....Just takes a little patience....Its not like a YS.....it will
come apart....Try going to bottom dead center and just slide the con rod
back and off the crank pin....Viola its off....Goes back together the same
way. Its a little tough but things are sized to allow for the removal of
the piston and conrod as a unit. Just like a .46 or the .61's</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Its cake after the first time.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I doubt you will ever get the wrist pin out
of the motor via the exhaust port....But then again other guys have seemed
to do some pretty weird stuff with motors....</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
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<DIV style="FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV
style="BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: black"><B>From:</B>
<A title=verne@twmi.rr.com href="mailto:verne@twmi.rr.com">Verne
Koester</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A title=discussion@nsrca.org
href="mailto:discussion@nsrca.org">NSRCA</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Tuesday, July 01, 2003 10:56
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> OS Piston Pin</DIV>
<DIV><BR></DIV>
<DIV><FONT size=4>Anyone know how to get the piston pin out of an OS
1.4RX? Working through the exhaust port, I got the circlip out but the
pin seems to be stuck pretty good. I thought I read where the id of the
pin was threaded but it doesn't SEEM like it is. Can't see in there real
well but the id feels pretty smooth. I want to replace the rear bearing
before the Nats to avoid any possible problems.</FONT></DIV>
<DIV><FONT size=4></FONT> </DIV>
<DIV><FONT size=4>Thanks,</FONT></DIV>
<DIV><FONT
size=4>Verne</FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>