Quote:
Originally Posted by Yellow Snow
How do you actually know that grinding a thou off the crank will make any difference at all. The BMW M engineers know a thing or two about cutting edge engine design.
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They may have cutting edge engine design, but I personally don't think that they have their crank cutting figured out
The S54/S85/S65 proves that they have issues setting clearances! I love BMW too but in this instance they screwed up royally, even more so by not admitting to a mistake and fixing the clearance issues after they first surfaced in the S54!