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Home >> BMW >> 2017 >> M6 2D Convertible, Standard Trans >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine - Technical Data - F12 >> Crankshaft And Bearings >> N63O1 Engine >> 11 21 Main bearing journals 2 through 5

11 21 Main bearing journals 2 through 5

CRANKSHAFT AND BEARINGS SPECIFICATION

Grinding stage of main bearing journals   Bearing journal 2-5
Original (identification S1) mm 64.984... 64.990
Original (identification S2) mm 64.977... 64.983
Original (identification S3) mm 64.971... 64.976
Grinding stage 1 (identification B1) mm 64.734... 64.740
Grinding stage 1 (identification B2) mm 64.727... 64.733
Grinding stage 1 (identification B3) mm 64.721... 64.726
Crankshaft bearing clearance, radial mm 0.020... 0.046
Max. permitted runout at main bearing journal mm 0.15