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Home >> BMW >> 2015 >> Z4 sDrive28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine - Technical Data (N54) -- Z4_E89) >> Crankshaft And Bearings N54 >> 11 21 Guide bearing journals

11 21 Guide bearing journals

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CRANKSHAFT AND BEARINGS SPECIFICATION

Ground sizes of main bearing journals   Guide bearing journal
Original (designation S1) mm 64.998...64.993
Original (designation S2) mm 64.992...64.987
Original (designation S3) mm 64.986...64.981
Crankshaft bearing clearance, radial mm 0.020...0.046
Max. permitted runout at center crankshaft journal mm 0.15