Quote:
Originally Posted by Nick M3
All the famous failures were caused by defective bearings that were too tight. BMW runs their clearances extremely tight according to most engine builders, so a slightly too tight bearing results in engine failure as there is no margin of safety whatsoever.
I’ve installed slightly wider clearance bearings in mine, which seems to help.
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Was minimal clearance the same issue that plagued some of the E92 M3’s?
And was the minimal clearance something that was the issue with the BMW v10?
I know most engine failures are anecdotal and 911s have plenty of stories too.