<!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 6.00.2900.2912" name=GENERATOR></HEAD>
<BODY bgColor=#ffffff>
<DIV><FONT face=Arial size=2>Ed</FONT></DIV>
<DIV><FONT face=Arial size=2>The seals start dragging ( couple of hundred
flights ) on a stainless bearing in the 91FX. Removed the seals and lived
happily ever after.</FONT></DIV>
<BLOCKQUOTE
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=kvelez@comcast.net href="mailto:kvelez@comcast.net">Ken Velez</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A> </DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 26, 2006 8:30 PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] OS 140RX
rough and inconsistent idle</DIV>
<DIV><BR></DIV>
<DIV><FONT face=Arial size=2>Ed I have experienced the same , bearing was the
solution. I know also Steve Miller has experienced this as well and the same
solution, bearing.</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Ken</FONT> </DIV>
<BLOCKQUOTE
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=rickwallace45@hotmail.com
href="mailto:rickwallace45@hotmail.com">Rick Wallace</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">nsrca-discussion@lists.nsrca.org</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 26, 2006 9:13
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] OS
140RX rough and inconsistent idle</DIV>
<DIV><BR></DIV>
<DIV>
<P>Ed - </P>
<P>two thoughts on bearings - </P>
<P>1. I've heard from others that a worn front bearing can be the cause of
idle problems - has that one been changed lately? </P>
<P>2. rear bearings - I've not had real success w/ any bearing other than an
OS EFI bearing installed just as it comes out of the bag - don't know how
long they last because both engines are on their second or third season on
the same rear bearing... Stock bearing, aftermarket stainless, Boca's of
various flavors all had finite - and short- lives in my engines ... </P>
<P>It'll be great to see you on the flight line in Muncie! </P>
<P>Rick <BR><BR></P>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #a0c6e5 2px solid; MARGIN-RIGHT: 0px"><FONT
style="FONT-SIZE: 11px; FONT-FAMILY: tahoma,sans-serif">
<HR color=#a0c6e5 SIZE=1>
From: <I>"Ed Miller" <edbon85@charter.net></I><BR>Reply-To: <I>NSRCA
Mailing List <nsrca-discussion@lists.nsrca.org></I><BR>To: <I>"NSRCA
Mailing List" <nsrca-discussion@lists.nsrca.org></I><BR>Subject:
<I>Re: [NSRCA-discussion] OS 140RX rough and inconsistent
idle</I><BR>Date: <I>Mon, 26 Jun 2006 13:56:41 -0400</I><BR><BR>
<META content="Microsoft SafeHTML" name=Generator>
<STYLE></STYLE>
<DIV>Thanks, looked at that so far when I removed engine, all looks
normal. Taking the engine apart in an hour or so. </DIV>
<DIV>Yes, I'll be getting fuel from Scott Thursday. I figured this
was better than cramping you guys on the trip out to Muncie. I'll
call you tonight. </DIV>
<DIV>Ed.</DIV>
<BLOCKQUOTE
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=DaveL322@comcast.net
href="mailto:DaveL322@comcast.net">DaveL322@comcast.net</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=nsrca-discussion@lists.nsrca.org
href="mailto:nsrca-discussion@lists.nsrca.org">NSRCA Mailing List</A>
</DIV>
<DIV style="FONT: 10pt arial"><B>Sent:</B> Monday, June 26, 2006 1:39
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: [NSRCA-discussion] OS
140RX rough and inconsistent idle</DIV>
<DIV><BR></DIV>
<DIV>Ed,</DIV>
<DIV> </DIV>
<DIV>Long shot - but double check throttle servo mount/linkage, and
mounting of engine, softmount, nosering, pipe, etc - any of that stuff
gets loose, funny things can happen.</DIV>
<DIV> </DIV>
<DIV>Anderson should have fuel for you.</DIV>
<DIV> </DIV>
<DIV>Dave</DIV>
<DIV> </DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">--------------
Original message -------------- <BR>From: "Ed Miller" <<A
href="mailto:edbon85@charter.net">edbon85@charter.net</A>>
<BR><BR>> Have an OS 140RX that has developed a rough and
inconsistent idle. Engine <BR>> runs perfectly except for idle. It
has a Mintor head with either an OS F or <BR>> K&B 1L in center
plug and an OS A5 in the angled plug position, a Perf Spec <BR>>
AAC piston/liner assembly and a Boca sealed SS rear bearing. I have
the head <BR>> mounted with angled plug towards the front or carb
side of engine. Fuel is <BR>> S&W 20 nitro, 16 synthetic and 2
castor. Engine has 7 gallons of fuel run <BR>> through it. Prop is
an APC 15.75 x 11 3 blade by Dave Lockhart. The lowest <BR>> I can
get the idle before it quits is 1900 ~ 2000 rpm and it is rough,
<BR>> sounds like it is firing every other revolution. Idle mixture
screw is <BR>> working, I can richen idle to poi! nt wher e engine
will barely transition from <BR>> being rich and I can lean mixture
so the transition is fine but engine slows <BR>> at idle like it is
too rich. While it is slowing with either the idle <BR>> mixture
screw lean or rich, engine is rough, again like it often fires every
<BR>> other revolution at times. I used to be able to reliably idle
this engine at <BR>> 1300 rpm. I have a second OS 140RX set up
exactly the same except it doesn't <BR>> have the AAC piston/liner
and it runs/idles perfectly. Tried cleaning the <BR>> carb/spray
bar with no change. I once had a Super Tiger that exhibited <BR>>
similar characteristics due to a worn out con rod. Is it possible the
con <BR>> rod on this OS could cause this issue ?? Any suggestions
will be greatly <BR>> appreciated. <BR>> Ed M. <BR>>
_______________________________________________ <BR>>
NSRCA-discussion mailing list <BR>>
NSRCA-discussion@lists.nsrca.org <BR>> http://lists.nsrc! a.org/m
ailman/listinfo/nsrca-discussion </BLOCKQUOTE>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE><BR>
<P>>_______________________________________________<BR>>NSRCA-discussion
mailing
list<BR>>NSRCA-discussion@lists.nsrca.org<BR>>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion<BR>
<P></FONT></P></BLOCKQUOTE></DIV>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</BLOCKQUOTE>
<P>
<HR>
<P></P>_______________________________________________<BR>NSRCA-discussion
mailing
list<BR>NSRCA-discussion@lists.nsrca.org<BR>http://lists.nsrca.org/mailman/listinfo/nsrca-discussion
<P>
<HR>
<P></P>No virus found in this incoming message.<BR>Checked by AVG Free
Edition.<BR>Version: 7.1.394 / Virus Database: 268.9.4/375 - Release Date:
6/25/2006<BR></BLOCKQUOTE></BODY></HTML>