11 21 Crankshaft and Bearings (N63 B44)
WARNING: This page is about a different car, the 2013 BMW X5, 2012 BMW X5, and 2011 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.
GROUND SIZES OF CONROD BEARING JOURNALS SPECIFICATION
| Ground sizes of conrod bearing journals | ||
| Original | mm | 53.971...53.990 |
| Stage 1 | mm | 53.721...53.740 |
| Size 2 | mm | 53.471...53.490 |
| Radial conrod bearing play | mm | 0.025... 0.070 |
GROUND SIZES OF MAIN BEARING JOURNALS (2 - 5) SPECIFICATION
| Ground sizes of main bearing journals | Bearing journal 2-5 | |
| Original (designation S1) | mm | 64.984... 64.990 |
| Original (designation S2) | mm | 64.977... 64.983 |
| Original (designation S3) | mm | 64.971... 64.976 |
| Grinding stage 1 (designation B1) | mm | 64.734... 64.740 |
| Grinding stage 1 (designation B2) | mm | 64.727... 64.733 |
| Grinding stage 1 (designation B3) | mm | 64.721... 64.726 |
| Grinding stage 2 (designation C1) | mm | 64.484... 64.490 |
| Grinding stage 2 (designation C2) | mm | 64.477... 64.483 |
| Grinding stage 2 (designation C3) | mm | 64.471... 64.476 |
| Crankshaft bearing clearance, radial | mm | 0.020... 0.046 |
| Max. permitted runout at center crankshaft journal | mm | 0.15 |
GROUND SIZES OF MAIN BEARING JOURNAL (1) SPECIFICATION
| Ground sizes of main bearing journals | Bearing journal 1 | |
| Original (designation S1) | mm | 64.974... 64.980 |
| Original (designation S2) | mm | 64.967... 64.973 |
| Original (designation S3) | mm | 64.961... 64.966 |
| Grinding stage 1 (designation B1) | mm | 64.724... 64.730 |
| Grinding stage 1 (designation B2) | mm | 64.717... 64.723 |
| Grinding stage 1 (designation B3) | mm | 64.711... 64.716 |
| Grinding stage 2 (designation C1) | mm | 64.474... 64.480 |
| Grinding stage 2 (designation C2) | mm | 64.467... 64.473 |
| Grinding stage 2 (designation C3) | mm | 64.461... 64.466 |
| Crankshaft bearing clearance, radial | mm | 0.020... 0.046 |
| Max. permitted runout at center crankshaft journal | mm | 0.15 |
GRINDING STAGES, CRANKSHAFT GUIDE BEARING SPECIFICATION
| Grinding stages, crankshaft guide bearing | ||
| Original | mm | 28+0.053+0.020 |
| Stage 1 | mm | 28.2+0.0530.020 |
| Stage 2 | mm | 28.4 +0.053+0.020 |
| Crankshaft side clearance | mm | 0.080... 0.246 |
| Coefficient of friction - crankshaft | Nm | MAX 5 |