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Case Tractors Discussion Forum
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Main Bearings

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eberga

07-04-2005 20:17:48




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When having the crank ground, will the main bearings be oversized or undersized? I heard of someone talking about undersized bearings but it doesnt make sense, it would seem to me that the crank gets smaller the bearings get bigger, is this correct?




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Bob

07-04-2005 23:29:22




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 Re: Main Bearings in reply to eberga, 07-04-2005 20:17:48  
Pistons to fit a rebored engine are OVERSIZE.

Bearings to fit a reground crank are UNDERSIZE.



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Joe (Wa)

07-04-2005 21:09:34




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 Re: Main Bearings in reply to eberga, 07-04-2005 20:17:48  
Undersize refers to the ID of the two liner halves. The liners' wall thickness is greater, the liners' ID is less to match the ground journal.

Joe



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