Inspection and setting data of crankshaft
Number | Designation | Engine 447 | Engine 489 | ||
BE03.20-N-1001-02F | Diameter of crankshaft bearing journals | Normal | mm | 104,002 | 104,002 |
Standard I | mm | 103,88 - 103,90 | 103,88 - 103,90 | ||
Repair size I | mm | 103,73 - 103,75 | 103,73 - 103,75 | ||
Repair size II | mm | 103,48 - 103,50 | 103,48 - 103,50 | ||
Repair size III | mm | 102,98 - 103,00 | 102,98 - 103,00 | ||
BE03.20-N-1003-02F | Radial play | mm | 0,060 - 0,126 | 0,060 - 0,126 | |
Crankcase, timing case cover, end cover
Number | Designation | Engine 447 | Engine 489 | ||
BA01.40-N-1002-01H | Bolt of crankshaft bearing cap to crankcase | 1st stage | Nm | 315 | 315 |
2nd stage | ° | 95 | 95 | ||
Dial gage
001 589 53 21 00
Commercially available tools
Number | Designation | |
WH58.30-Z-1001-12A | Quick calipers for internal measurements | |
WH58.30-Z-1002-12A | Micrometer |
W03.20-0003-01
1 Clean bearing points in crankcase and bearing caps (3) with a chamois leather.
2 Insert bearing shells (1, 2) in the marked order into the crankcase and into the bearing caps (3).
The locking lugs (arrows) of the bearing shells (1, 2) must be located in the slots of the basic bores of the crankcase and of the bearing caps (3). The oil drillings in the bearing shell and in the crankcase must be aligned.
3 Install bearing caps (3) together with bearing shells (1) in the crankcase.
The crankcase and the bearing caps are marked to each other, e.g. H 956. The marking is located in the case of the crankcase at the third crankshaft bearing on the contact surface to the oil pan and on the bearing caps. The digit at the left of the letter indicates the number of the crankshaft bearing, the crankshaft bearings being numbered consecutively from 1-7 from the vibration damper side.
4 Oil bearing bolts (6) and tighten initially to the specified torque, after this tighten fully to the specified tightening angle.
Mark the wrench socket as a check of the tightening angle.
W03.20-0005-01
5 Use dial gage and quick calipers to measure crankshaft bearing bores in crankcase at three points (A, B, C) (vertically and each about 30° up and down from the separation points).
Note measurements.
6 Take off the bearing caps (3, 4) again.
W03.20-0009-01
7 Use micrometer to measure crankshaft bearing journal diameter and note measurements.
8 Calculate radial play of crankshaft bearings:
Measurement of inner diameter of crankshaft bearing bore
- Measurement of outer diameter of crankshaft bearing journal
= crankshaft radial play