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<DIV><FONT face=Arial size=2>I have been using the Bearings Limited bearing
from Purvis and they are steel with seals and I just leave the seals in.
So far about 300 flights my OS engine and no signs of problems. So I
think if you go with the stainless and leave the seals in they should go far a
long time like the others have stated. </FONT><FONT face=Arial size=2>The first
time I used the Bearings Limited version I took the seal out and the bearing
only lasted about 30 flights. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have to raise a point here about the issue of
taking the seal out. If you take the seal off the front part of the
bearing leaving the rear seal in it is still a sealed bearing because the front
of the bearing will be sealed by the crankcase itself. As Bob's post
states "shield" this could mean the bearing is not truly
sealed.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am willing to bet that next time I change my
sealed bearing that I could remove one of the seals and there will still be lube
in it. We use sealed bearings in many applications that do not
require any outside lubrication influence, i.e. alternators,brushless
motors(20k plus rpm),fan motors, wheel bearings. </FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I am convinced the rust is the number one
contributor to bearing failure and load being secondary.
</FONT></DIV>
<DIV><FONT face=Arial size=2>I run two head shims so this could also be the
reason my bearings are holding up better then some.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Wayne G.</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=rodney19821982@yahoo.com
href="mailto:rodney19821982@yahoo.com">Rodney Tanner</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> Friday, May 20, 2005 10:33 AM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [SPAM] Re: [SPAM] Re: A Bearing
Tip - Boca Bearing Newsletter</DIV>
<DIV><BR></DIV>
<DIV>Thanks Verne,</DIV>
<DIV>That is what I had heard. </DIV>
<DIV> </DIV>
<DIV>Rodney Tanner.<BR><BR><B><I>Verne Koester <<A
href="mailto:verne@twmi.rr.com">verne@twmi.rr.com</A>></I></B> wrote:</DIV>
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<DIV><FONT face=Arial>Rodney, </FONT></DIV>
<DIV><FONT face=Arial>If you're putting it in an O.S. 1.4, definitely leave
the seals in. You'll get 300-500 flights with the seals in. With them out,
you'll be lucky to put 5 gallons through the engine before they're
shot!</FONT></DIV>
<DIV><FONT face=Arial></FONT> </DIV>
<DIV><FONT face=Arial>Verne Koester</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=rodney19821982@yahoo.com
href="mailto:rodney19821982@yahoo.com">Rodney Tanner</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> Thursday, May 19, 2005 10:33
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> [SPAM] Re: A Bearing Tip -
Boca Bearing Newsletter</DIV>
<DIV><BR></DIV>
<DIV>Bob, So using an OS 140 EFI bearing, is it advisable to remove the
seals?</DIV>
<DIV>Rodney<BR><BR><B><I>Bob Pastorello <<A
href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A>></I></B>
wrote:</DIV>
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<DIV><FONT face=Arial size=2>Since I use theirs, I get this
e-newsletter. This month's tip;</FONT></DIV>
<DIV><FONT face=Arial size=2><<If your Front engine bearing has
two rubber seals you should not remove them. These bearings have their
own grease and can help stop oil leaks. If your bearing has two shields,
we recommend you remove one of them. For instructions on removing your
shields take a look at this <A class=fpbodylink
href="http://www.bocabearings.com/main1.aspx?p=help#six">Help
Section</A>.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Your Rear engine bearing should be open on
both sides to allow as much fuel as possible to pass through and act as
a lubricant. You may however want leave one shield on in the rear which
would help to protect the rest of the engine from any foreign matter
getting through. This should not be done with one seal. If you find your
engine is stingy in getting fuel to the rear, you should definitely
leave the bearing open.</DIV>
<P class=body2><SPAN class=body2>In our next issue of the Boca Bearings
Tips & Advice </SPAN>Newsletter we will show you how to remove your
bearing shields. >></P>
<P class=body2>Note - if you open your crankcase, using sealed bearings,
and the crankshaft counterweight it dry-looking, or the lower part of
the bearing isn't pooling oil, you may think about removing the
seals. I do, for this reason.</P></FONT>
<DIV><FONT face=Arial size=2><BR>Bob Pastorello<BR><A
href="http://www.rcaerobats.net/">www.rcaerobats.net</A><BR><A
href="mailto:rcaerobob@cox.net">rcaerobob@cox.net</A></FONT></DIV></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BLOCKQUOTE></BODY></HTML>