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Join Date: Nov 2012
Location: East Central Florida
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Here's another data point - Attached a few (sorry about the photo quality) pics of rod bearings removed from a salvaged long block out of a 2007 M6 with about 32,000 miles. There was nothing unusual about the maintenance history that I could find.
The main photo shows cylinders 1 thru 10 from left to right, piston side bearing shells are on top, cap side shells on bottom. Wear on top shell was pretty consistent with copper just starting to show in a few. New red/blue BMW bearings went in with Plasti-gage checks showing clearances are in 0.002-0.0025 inch range. Note - brownish spots on some bearings is oil puddling.
2007 M6 cab, SMG, Sapphire Black, Portland, CA, HUD, CF trim,
Satin black kidneys, CF Lip, LED AEs, RPI scoops, BOPs, BMC filters (charcoal delete),
Evolve Alpha N, misc. coding, Tubi Rumore, BC Forged HB04 20's, PSS's, H&R Sports,
RDS sway bars, SST brake lines.