11 21 Crankshaft and Bearings N52K B25
WARNING: This page is about a different car, the 2010 BMW X3, 2009 BMW X3, 2008 BMW X3, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
TECHNICAL DATA - CRANKSHAFT AND BEARINGS N52K B25
| 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 center crankshaft journal | mm | 0.150 |
TECHNICAL DATA - CRANKSHAFT AND BEARINGS N52K B25
| Grinding stages, crankshaft guide bearing | ||
| Standard | mm | 24.0 F8 |
| Crankshaft axial play | mm | 0.060 ... 0.250 |
TECHNICAL DATA - CRANKSHAFT AND BEARINGS N52K B25
| Ground sizes of conrod bearing journals | ||
| Standard | mm | 50.000 -0.007-0.027 |
| Radial conrod bearing play | mm | 0.025 ... 0.070 |
TECHNICAL DATA - CRANKSHAFT AND BEARINGS N52K B25
| 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 |
| Grinding stage 1 (designation B1) | mm | 55.748...55.742 |
| Grinding stage 1 (designation B2) | mm | 55.742...55.737 |
| Grinding stage 1 (designation B3) | mm | 55.737...55.731 |
| Grinding stage 2 (designation C1) | mm | 55.498...55.492 |
| Grinding stage 2 (designation C2) | mm | 55.492...55.487 |
| Grinding stage 2 (designation C3) | mm | 55.487...55.481 |
| Crankshaft bearing clearance, radial | mm | 0.020...0.046 |
| Max. permitted runout at center crankshaft journal | mm | 0.150 |