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<DIV><FONT face=Arial size=2>Yep. Last year I had a stainless bearing let go in
an OS 140RX. It took out the piston, ring, sleeve, and beat the crap out of the
pump and the area around the rear bearing. It looked like a hand grenade went
off in there.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>So, I leave the covers on lately. Might have just
been a bad bearing, not sure....but it made a mess and I don't want to go
through that again.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>-Mike</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=bob@toprudder.com href="mailto:bob@toprudder.com">Bob Richards</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> Monday, February 21, 2005 1:28
PM</DIV>
<DIV style="FONT: 10pt arial"><B>Subject:</B> Re: Question on Bearing change
out</DIV>
<DIV><BR></DIV>
<DIV>I had heard that the "shields" were really dust covers, and would not
impede the lubrication from getting to the bearings during normal use. IMHO,
in the event of a bearing failure, having the shields in place might prevent
parts of the bearing from damaging the rest of the engine. </DIV>
<DIV> </DIV>
<DIV>Having said that, I have never installed shielded bearings, so I don't
have any experience with my theory. Any comments?</DIV>
<DIV> </DIV>
<DIV>Bob R.</DIV>
<DIV><BR><BR><B><I>Tom Simes <nsrca@shinymetalass.com></I></B>
wrote:</DIV>
<BLOCKQUOTE class=replbq
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">On
Sun, 20 Feb 2005 11:42:17 -0900<BR>"Michael Laggis"
<FISHGOD@POBOX.MTAONLINE.NET>wrote:<BR><BR>> Thanks Dave, Bob. After I
asked the question I went to<BR>> bocabearing.com and they said basically
do them like the factory. <BR>> Thanks for your input. <BR>> <BR>>
Michael Laggis<BR>> AKA Moose Boy<BR>> NSRCA 3618 <BR>>
http://www.alaskarc.org<BR><BR>When I did my first set of bearings, I took a
close look at edges of the<BR>shield material and thought it looked too
thick to be pierced with an<BR>awl and removed per Boca's instructions. I
was pretty worried about<BR>damaging the bearings or races but in the end I
sharpened the awl to a<BR>fine point, took a deep breath and it worked like
a charm. I didn't try<BR>to measure it afterwards, but I believe the shields
may be thicker on<BR>the retaining edge than in the area actually covering
the bearings. By<BR>the way, I'm running Boca's stainless rears with both
shields removed<BR>and leak stop stainless fronts with both seals
intact.<BR><BR>Which reminds me - I need to get an order off for the combat
plane and<BR>my ST .75...<BR><BR>At the time I suggested to Boca that a few
pictures of the procedure<BR>would definately ease the pucker factor the
first time folks do this.<BR><BR><BR>--
<BR>Tom<BR><BR>_____________________________________________________________________<BR><BR>|
, | Tom Simes<BR>---------(@)--------- AMA 230068<BR>--|-- NSRCA 3830<BR>'
nsrca@shinymetalass.com<BR>=================================================<BR>To
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