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      04-13-2011, 09:22 PM   #18
Grease Monkey
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Drives: 2011 E90 M3,1994 Euro E36 M3/4
Join Date: Apr 2006
Location: Fort McMurray, Alberta, Canada

Posts: 2,269
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In my opinion, replacing a crankshaft and main bearings without pulling the engine and verifying that the main bearing bores are in proper alignment and are in spec for both roundness and taper is a waste of time.

Bearings almost always fail due to another issue which leads to the failure, very seldom is the bearing itself the problem.
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