Mercedes W124

since 1985-1995 of release

Repair and car operation



W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
+ ENGINE
+ 4. Repair of 6-cylinder petrol SOHC engines
+ 5. Repair of 6-cylinder petrol DOHC engines
+ 6. Repair of the diesel engine established in the car
- 7. Major maintenance of engines
   7.2. General information
   7.3. Recommendations about engine removal
   7.4. Removal and installation of 4-cylinder petrol engines
   7.5. Removal and installation of 6-cylinder petrol engines
   7.6. Removal and installation of diesel engines
   7.7. Sequence of dismantling of the engine
   + 7.8. Analysis of a head of the block of cylinders
   + 7.9. Assembly of a head of the block of cylinders
   7.10. Removal of pistons with rods
   7.11. Removal of a cranked shaft
   7.12. Block of cylinders of the engine
   7.13. Pistons and rods
   7.14. Cranked shaft
   7.15. Survey of radical and shatunny bearings
   7.16. Engine balance of assembly at major maintenance
   7.17. Installation of piston rings
   7.18. Installation of a cranked shaft
   7.19. Check of a working gap of radical bearings
   7.20. Installation of a cranked shaft
   + 7.21. Installation of pistons with rods
   7.22. Engine start after major maintenance
+ COOLING SYSTEM
+ FUEL SYSTEM
+ 10. System of injection of BOSCH CIS-E fuel (KE-JETRONIC)
+ 11. System of injection of BOSCH HFM fuel
+ 12. Fuel system of diesel engines
+ 13. Fuel system of diesel engines
+ SYSTEMS OF START, IGNITION
+ 15. System of ignition of 4-cylinder petrol engines
+ 16. System of ignition of four-cylinder petrol engines
+ PRESTARTING HEATING
+ TRANSMISSION
+ 19. Mechanical transmission
+ 20. Automatic transmission
+ POWER SHAFTS
+ BRAKE SYSTEM
+ SUSPENSION BRACKET
+ BODY
+ ELECTRIC EQUIPMENT
+ CHECK OF MALFUNCTIONS






7.11. Removal of a cranked shaft

GENERAL INFORMATION

Arrangement of bolts of fastening of a back cover of a cranked shaft on the 4-cylinder petrol engine

Arrangement of a label of identification on a cover of the radical bearing

Removal of a cover of the radical bearing of a cranked shaft

Removal of a persistent half ring from a cover of the radical bearing

Removal of the top persistent half rings from the block of cylinders of the engine

PERFORMANCE ORDER
1. On the 4-cylinder engine remove the oil pallet, a cover of a driving chain, a driving chain and a drive flywheel / plate. If necessary also remove an asterisk of a cranked shaft.
2. On 6-cylinder petrol SOHC engines remove the oil pallet, the oil pump, the bottom cover driving a chain, a driving chain and a drive flywheel / plate. If necessary also remove an asterisk of a cranked shaft.
3. On 6-cylinder petrol DOHC engines remove the oil pallet, the oil pump, a masloulavlivayushchy plate, the bottom cover of a driving chain, a driving chain and a drive flywheel / plate. If necessary also remove an asterisk of a cranked shaft.
4. On diesel engines remove the oil pallet, the oil pump, a masloulavlivayushchy plate, a cover of a driving chain, a driving chain and a drive flywheel / plate. If necessary also remove an asterisk of a cranked shaft.
5. Unscrew bolts and remove a back cover of a cranked shaft from the block of cylinders. Remove laying (see fig. An arrangement of bolts of fastening of a back cover of a cranked shaft on the 4-cylinder petrol engine).
6. Remove pistons and rods. If replacement of pistons with rods or piston rings is not required, there is no need to shoot a head of the block of cylinders and to remove pistons with rods. In this case establish pistons with rods so that rods did not touch necks of a cranked shaft.
Prevention

If pistons take place in cylinders with the established head of the block of cylinders on the engine, be careful, that there was no impact of pistons about the valve.


7. Check axial люфт a cranked shaft.
8. Check marking existence on covers of radical bearings. In the absence of marking put it. On 4-cylinder engines of a cover of radical bearings are marked by figures from 1 to 5 from a driving chain. Similarly on 5-cylinder engines of a cover are numbered by figures from 1 to 6, and on 6-cylinder engines in figures from 1 to 7 (see fig. An arrangement of a label of identification on a cover of the radical bearing).
9. Unscrew bolts and remove covers of radical bearings with loose leaves (see fig. Removal of a cover of the radical bearing of a cranked shaft).
10. Note an arrangement and orientation of an arm of a maslozaborny tube which also fastens bolts of fastening of a cover of the radical bearing.
11. Remove the bottom persistent half rings for adjustment axial люфта a cranked shaft from two parties I correspond Russian cabbage soup of a cover of the radical bearing (see fig. Removal of a persistent half ring from a cover of the radical bearing):
– on 4-cylinder engines from a cover of the central radical bearing No. 3;
– on 5-cylinder engines from a cover of the radical bearing No. 4;
– on 6-cylinder engines from a cover of the radical bearing No. 5.
12. Being careful, remove a cranked shaft.
13. Remove the top loose leaves of radical bearings from the block of cylinders and combine them with the corresponding covers. Remove the top persistent half rings (see fig. Removal of the top persistent half rings from the block of cylinders of the engine).