dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted June 02, 2009 09:12 PM
polish the bearings?
A local pro car engine builder told me they use white scotch britepad and wd 40 to very lightly polish the top coat off the bearings.
He said it was only ther for asthetics, and this way any abnormalities or highspots such as dust in the grey final coat would be removed.
Must guys I know are scared to touch them at all.
Anyone here doing this or heard of it?
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
  
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tcchin
Zone Head
Posts: 867
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posted June 02, 2009 09:23 PM
 Edited By: tcchin on 3 Jun 2009 05:29
The HRC engineers that I know say to wipe the inner and outer surfaces of the bearing lightly with a soft cotton rag and acetone, leaving the coating intact. I haven't heard of anyone serious removing the oxide coating for about 10 years.
Also, I'd be afraid of leaving bits of silicon carbide abrasive embedded in the bearing.
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NINJA12
Needs a job
Posts: 3310
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posted June 03, 2009 12:14 PM
I asked that question a few years back and almost everyone said don't do it.
unproven and you would have to recheck you clearances after the polish job.
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dougmeyer
Needs a job
moderated
Posts: 2713
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posted June 03, 2009 06:11 PM
Dubious,
PM not working- call me anytime.....
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It's not that I think you're dumb, it's just that so much of what you know isn't true....
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smokinZX14
Needs a life
Posts: 10197
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posted June 03, 2009 08:56 PM
Dubious I have removed it and left it on others and have seen no difference ..The race bearings i buy for our big blown hemis don't have that coating ...I asked a bearing Rep about that coating and he told me that the coating is there to embed any dirt in the soft coating and not damage the crank on start up ( fresh engine ) .. He said most race engine shops don't want the coating because there engines are spotless ( free of any dust or dirt ) when assembled ..If i were you i would just leave it as is ..
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Smokin Performance Cycles..
Tampa Bay , FL .. Brocks Performance Dealer ..
Gen 2 ZX14R Best ET 8.43 , Best MPH 164.95
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted June 03, 2009 09:20 PM
Thanks for the great responses guys!
Doug,
I will try you tomorrow.
Thanks!
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
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Y2KZX12R
Needs a job
CompetitionCNC.com
Posts: 3762
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posted June 04, 2009 04:00 AM
Dub, the most important thing is to make sure there's no chunks of Babbitt on the ends of the bearing shell where they butt together. Sometimes there's leftover pieces lightly stuck there or on the back side.
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Y2KZX12R
CompetitionCNC.com
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dubious
Needs a life
Needs more time to ride!
Posts: 8442
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posted June 04, 2009 08:08 PM
Thanks
____________
natural selection.....
destiny will overcome intervention.
Some are not worthy of the effort.
|
Gixx1300R
Expert Class
Posts: 218
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posted June 05, 2009 10:24 AM
I have my bearings Dry film coated
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