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<DIV><SPAN class=181380305-03072006>Hi Matt,</SPAN></DIV>
<DIV><SPAN class=181380305-03072006></SPAN> </DIV>
<DIV><SPAN class=181380305-03072006>you are absolutely correct! I guess I
forgot to mention that we have dustbowl conditions down here, it kills motors
even with aircleaners. But in any case, point taken-but its true that the
Japanese will never admit a problem. Man we went nuts with that OS120SP and
eventually got it sorted without their help!</SPAN></DIV>
<DIV><SPAN class=181380305-03072006></SPAN> </DIV>
<DIV><SPAN class=181380305-03072006>Tom</SPAN></DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of
</B>Rcmaster199@aol.com<BR><B>Sent:</B> Monday, 3 July 2006 2:36
PM<BR><B>To:</B> nsrca-discussion@lists.nsrca.org<BR><B>Subject:</B> Re:
[NSRCA-discussion] Bearing tip for OS 1.40 RX<BR><BR></FONT></DIV>
<DIV>
<DIV>Tom, </DIV>
<DIV>Been using Castor Oil as an after run oil and in my fuel (mix of syn
and castor) for a very long time. Works great and I have no issues with
varnish or any adverse affects. Until recently, I stored my stuff in the
garage in hot and humid Florida. In general bearings in my Webras last about
400 runs or so before they need replacement. </DIV>
<DIV> </DIV>
<DIV>The only "premature" failure so far has been the 160's
bearing (lasted longer than "50-100" though), and which was primarily
caused by lean idle and mid range settings. There were also other
circumstances that didn't help the bearing (about 8 month idle time between
Florida and New Jersey)</DIV>
<DIV> </DIV>
<DIV>I agree it probably isn't as simple as what was stated, but Ed's
point is that OS has a winner with the EFI bearing, so why not use that part
from the start at the factory? Makes sense to me.</DIV>
<DIV> </DIV>
<DIV>MattK</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>In a message dated 7/2/2006 11:50:32 PM Eastern Standard Time,
Tom.Koenig@actewagl.com.au writes:</DIV>
<BLOCKQUOTE
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: blue 2px solid">
<DIV><SPAN class=187332903-03072006>Hi Guys,</SPAN></DIV>
<DIV><SPAN class=187332903-03072006>Please dont take this the wrong way and
I dont want to rain on your parade-but...</SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<DIV><SPAN class=187332903-03072006>I dont think it's as simple as what you
say. May I ask why you are pouring castor oil in there? ( OK I know
why..but...)</SPAN></DIV>
<DIV><SPAN class=187332903-03072006>I have seen/experienced symptoms like
you describe-but generally in motors where the set-up parameters may not be
optimal. Ie; pipe too short and prop too big and no crankcase cooling,
wronfg fuel and compression ratio.</SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<DIV><SPAN class=187332903-03072006>No crankcase cooling can cause the pump
to get too hot and boil fuel. This shows up as all sorts of symptoms and
genarally causes havoc. Also, if that engine is getting too hot
whatever castor you have left in there will burn, perhaps causing a
varnish build up and the rest is history.</SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<DIV><SPAN class=187332903-03072006>However all bearings will wear and the
big 2 strokes usually let you know when the idle suddenly turns to custard.
Then you must immediately change bearings.</SPAN></DIV>
<DIV> </DIV>
<DIV>C<SPAN class=187332903-03072006>heck over all possibilities-the
Japaneses usually know what they are doing ( and if they dont-they'll never
admit anyway) but down here, all the OS's run perfectly once the set-ups are
correct.Having said that -expect to change bearings every 50-100 flights
depending on climatic conditions.</SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<DIV><SPAN class=187332903-03072006>Ofcourse I place a caveat on this- I use
a YS <VBG></SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<DIV><SPAN class=187332903-03072006>Good luck and best regards</SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<DIV><SPAN class=187332903-03072006>Tom</SPAN></DIV>
<DIV><SPAN class=187332903-03072006></SPAN> </DIV>
<BLOCKQUOTE dir=ltr style="MARGIN-RIGHT: 0px">
<DIV class=OutlookMessageHeader dir=ltr align=left><FONT
face=Tahoma>-----Original Message-----<BR><B>From:</B>
nsrca-discussion-bounces@lists.nsrca.org
[mailto:nsrca-discussion-bounces@lists.nsrca.org]<B>On Behalf Of </B>R.
LIPRIE<BR><B>Sent:</B> Monday, 3 July 2006 1:21 PM<BR><B>To:</B> NSRCA
Mailing List<BR><B>Subject:</B> Re: [NSRCA-discussion] Bearing tip for OS
1.40 RX<BR><BR></FONT></DIV>
<DIV>You no Ed,</DIV>
<DIV> </DIV>
<DIV> You are as
right as anyone could be. OS is a very good engine without that dang
piece of junk ball bearing. And I I've made complaints and I no I'm not
the only one that has. But I don't no why they keep putting that thing in
there. They do no what that bearing does. But like I told them you
would get better sells of your engines if you would put the good
ball bearing in there. Because everyone is starting to find out that the
OS ball bearing that is stock is junk. So everyone just keep
complaining.</DIV>
<DIV> </DIV>
<DIV align=center>Matt</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=mailto:ed_alt@hotmail.com href="mailto:ed_alt@hotmail.com">Ed
Alt</A> </DIV>
<DIV style="FONT: 10pt arial"><B>To:</B> <A
title=mailto: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> Sunday, July 02, 2006 10:09
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [NSRCA-discussion] Bearing
tip for OS 1.40 RX</DIV>
<DIV><BR></DIV>
<DIV>This is an FYI for anyone with a new OS 1.40 RX. Thinking
about running with the stock bearing for even a short time? Think
again. I was anxious to get a new model flying for this weekend
and decided not to take the time to first swap out the junk stock
bearing in a new RX. I figured if I dosed it with after run
oil after every flight I could get through he weekend and then do the
mandatory swap to a sealed bearing. Here's the full history.
</DIV>
<DIV> </DIV>
<DIV>Friday, June 30 I did two break in runs on the ground. Didn't
do any after run between these two runs. They were only 30 minutes
apart. What could happen?. Another 30 minutes after the 2nd break
in run, did a short flight. Had a transmitter trim lever problem,
landed quickly, de-fueled, ran it dry, literally ran nearly 20 squirts
of Amsoil Metal Protector through it. Doused it. Got it
home, added a full carb barrel of castor oil for good measure and worked
it through. Yeah, that ought to do it. Dehumidifier running
all day, all night in the basement...</DIV>
<DIV> </DIV>
<DIV>Saturday, July 1 dawns. Bearings still feel OK. Head to
the field. Fly. Work a carb barrel of castor through
it. Repeat for 3 more flights. Note that the bearing is
starting to feel rough already. Take it home, swap for a sealed
bearing. Note that the bearing is rusted already and that the
crankshaft has light scoring from the inner race turning on it. 7
runs, handled like a newborn baby.</DIV>
<DIV> </DIV>
<DIV>IMO, it is a disgrace that OS continues to produce this engine with
a trash bearing that can't stand up to even the most careful use for
more than a day. They KNOW what should be in there, since they do
it for the EFI version. Lesson learned, if I ever do use another
new RX, I'll never again make the mistake of doing even a single run
without first swapping the main bearing. It's not like the sealed
bearing is all that expensive either. I get them locally for a
little over $11 each and they work great. You don't even have to
waste money on an overpriced Boca or EFI verson from Tower.</DIV>
<DIV> </DIV>
<DIV>Ed</DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></DIV>
<DIV></DIV></BLOCKQUOTE></BODY></HTML>
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