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Coated bearings?

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Old Jul 22, 2007 | 10:54 AM
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Default Coated bearings?

I am rebuilding a motor, looking for the best bearings. Are coated bearings worth doing? If anyone has done these, where can you find them? I am refering to the main, piston journal and cam bearings.

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Old Jul 22, 2007 | 11:30 AM
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I believe coated bearings are added insurance. You can get the main and rod bearings through clevite or federal mogul and the cam bearings through durabond
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Old Jul 22, 2007 | 08:47 PM
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Great. I'll look for them. Thanks!
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Old Jul 22, 2007 | 08:50 PM
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Originally Posted by CoopDog
I am rebuilding a motor, looking for the best bearings. Are coated bearings worth doing? If anyone has done these, where can you find them? I am refering to the main, piston journal and cam bearings.
A little confused here, all bearings are "coated" You may not notice it, but they all have a thin film coating the babbit. Besides in a perfect world, nothing ever actually touches the bearing surface, so the coating is more to protect it from handling during installation than anything else. Maybe a few more specifics? Like what brand, and what coating the company is advertising.
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Old Jul 22, 2007 | 09:48 PM
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I know about the babbit coating, I read somewhere about bearings with an extra slippery coating. I'll have to look for the article to be more specific. I'm just looking for anything that will reduce friction a little bit.
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Old Jul 22, 2007 | 10:45 PM
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clevite has them in main and rod bearings. i had them in my motor.

ROD BEARINGS CB663-HK

MAIN BEARINGS MS2199-HK


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Old Jul 22, 2007 | 10:55 PM
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Thats what I am talking about
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Old Jul 23, 2007 | 10:10 PM
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Yep, that was exactly what I was looking for. I'll see if I can do these on the block I am putting together.
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Old Jul 24, 2007 | 09:01 AM
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The coating is really just added insurance. It will only ever do anything for you if you lose oil to them. In normal operation with adequate oil supply there really shouldn't be any friction on the crankshaft, so don't expect an friction reducing coating to do anything for you in terms of power.
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Old Jul 24, 2007 | 09:51 PM
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I'll give them a shot anyway, assuming they are not overly expensive. There will be some friction, hopefully provided by the oil and not the crank.
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