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Old 06-03-2014, 10:27 AM   #1
BlazeRex
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Default Proper Undersize Bearing Crush

I apologize if this has been covered before, but my searching efforts have been fruitless on the matter. If I have standard size main bearings, could I do a half shell setup with std and .026 undersized bearings to get my clearance? Or will this cause improper bearing crush?

Or could I even put .026 undersized in stock main bores and still get proper crush? I would like to use these bearings to tighten my clearance but am afraid since they are 'under size' that the crush may not be correct.

Ideally I'd like to have half shells of std and -.026 bearings, but like I said I want to make sure all is okay with this before I proceed.

Thanks!
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Old 06-03-2014, 04:32 PM   #2
fastblueufo
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That why the manufacturers make +/_ .001 bearings.
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Old 06-04-2014, 10:53 AM   #3
BlazeRex
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Thanks for responding! So just to be clear, I cannot run .026 mm undersized (.001"). I would need to custom order an oversized set? The only bearings I've seen with the .001" oversized is cosworth with their size 0.
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Old 06-04-2014, 03:10 PM   #4
spoolinsti05
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Just get std bearings and check clearance you can do a few things for more clearance like line bore the block or rods.
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Old 06-04-2014, 03:48 PM   #5
Motion Machine
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Quote:
Originally Posted by BlazeRex View Post
I apologize if this has been covered before, but my searching efforts have been fruitless on the matter. If I have standard size main bearings, could I do a half shell setup with std and .026 undersized bearings to get my clearance? Or will this cause improper bearing crush?

Or could I even put .026 undersized in stock main bores and still get proper crush? I would like to use these bearings to tighten my clearance but am afraid since they are 'under size' that the crush may not be correct.

Ideally I'd like to have half shells of std and -.026 bearings, but like I said I want to make sure all is okay with this before I proceed.

Thanks!
If you haven't checked the block to see if the main bores are worn, you'll never get the bearing clearance you think you have.
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