11 21 Crankshaft And Bearings N51 B30
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2013 BMW 128i, 2012 BMW 128i, 2011 BMW 128i, 2010 BMW 128i, and 2009 BMW 128i. However, it is still accessible from the selected car via links, so may be relevant.
CRANKSHAFT AND BEARINGS GENERAL SPECIFICATION
| Ground sizes of main bearing journals | main bearing journal | |
| Original (designation S1) | mm | 55.998...55.993 |
| Original (designation S2) | mm | 55.992...55.987 |
| Original (designation S3) | mm | 55.986...55.981 |
| Crankshaft bearing clearance, radial | mm | 0.020...0.046 |
| Max. permitted runout at left crankshaft journal | mm | 0.15 |
CRANKSHAFT AND BEARINGS GENERAL 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 left crankshaft journal | mm | 0.15 |
CRANKSHAFT AND BEARINGS GENERAL SPECIFICATION
| Grinding stages, crankshaft guide bearing | ||
| Standard | mm | 24.0 F8 |
| Crankshaft axial play | mm | 0.060...0.250 |