<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<HTML><HEAD>
<META http-equiv=Content-Type content="text/html; charset=iso-8859-1">
<META content="MSHTML 6.00.2722.900" name=GENERATOR>
<STYLE></STYLE>
</HEAD>
<BODY bgColor=#ffffff>
<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>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<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>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<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>
<BLOCKQUOTE dir=ltr
style="PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<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></BODY></HTML>