Inspection and setting data of camshaft
Number | Designation | Engine | Engine | ||
BE05.20-N-1001-04L | Camshaft bearing journal diameter at all bearing points | Standard | mm | 69.910...69.940 | 69.910...69.940 |
Deviation 0.1 | mm | 69.810...69.840 | 69.810...69.840 | ||
Deviation 0.25 | mm | 69.660...69.690 | 69.660...69.690 | ||
Deviation 0.5 | mm | 69.410...69.440 | 69.410...69.440 | ||
BE05.20-N-1005-04L | Camshaft concentricity variation when mounted on outer bearing journals | Cam base circle | mm | 0.050 | 0.050 |
Bearing point | mm | 0.050 | 0.050 | ||
BE05.20-N-1007-04L | Peak-to-valley height of journals | RHT | 500 | 500 | |
If the radial runout of the camshaft is not to tolerance (variation in concentricity of camshaft) this is rectified with a crankshaft straightening press:
- the camshaft must be mounted only at the first and seventh bearing journals and
- pressure must be applied only at the forth bearing journal.
If scores are present in the bearing journals of the camshaft, the bearing journals are re-ground with a crankshaft grinding machine in accordance with the defined repair size:
- All the bearing journals must be matched to the same repair size.
- It is important to maintain the specified peak-to-valley height.