<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 access the email archives for this list, go to<BR>http://lists.f3a.us/pipermail/nsrca-discussion/<BR>To be removed from this list, go to http://www.nsrca.org/discussionA.htm<BR>and follow the instructions.<BR><BR></BLOCKQUOTE>