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Originally Posted by Green-Eggs
Quote:
Originally Posted by bmwfst1
Hello everyone. I'm sure this has been said on some other thread before. But I would like to know what my rod bearings are made of. I have a 2010 m3. Thanks
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2008-2010.5 has lead copper bearings.
http://wiki.rcollins.org/core/index.php/Engine_Specs_-_S65_Rod_Bearings#Production_and_Composition
2010,5-2013 has tin aluminum bearings.
http://wiki.rcollins.org/core/index.php/Engine_Specs_-_S65_Rod_Bearings#Production_and_Composition_2
Nobody is really sure of the cut off dates for the switch because some older 2010s had the new bearings while other of the same approximate build date had the old bearings. |
Did the crankshaft material change to accommodate the change with hardened bearings?