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
      7.21.2. Check of a working gap of shatunny bearings
      7.21.3. 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






7.21. Installation of pistons with rods

7.21.1. Choice of shatunny loose leaves

FOUR-CYLINDER PETROL ENGINES

For determination of the demanded thickness of new shatunny loose leaves it is necessary to measure internal diameter of the shatunny bearing, diameter of a shatunny neck of a cranked shaft and to consider a working gap of the bearing. The demanded thickness of the bearing can be calculated as follows.

Example

Diameter of the bearing of 62,51 mm
Diameter of a neck of the crankshaft of 57,95 mm
4,56 mm
Working gap of the bearing of-0,04 mm
4,52 mm ±2
2,26 mm

As spare parts loose leaves of radical bearings of the next thickness are delivered.

Loose leaves
Thickness of the loose leaf
The nominal
1,80 mm
Repair size 1
1,92 mm
Repair size 2
2,05 mm
Repair size 3
2,18 mm
Repair size 4
2,30 mm

SIX-CYLINDER PETROL SOHC ENGINES

The thickness of loose leaves of shatunny bearings is defined in the same way, as well as for 4-cylinder petrol engines. For determination of the demanded size of loose leaves it is necessary to consult at the dealer of Mercedes-Benz.

SIX-CYLINDER PETROL DOHC ENGINES

For determination of the demanded thickness of new shatunny loose leaves it is necessary to measure internal diameter of the shatunny bearing, diameter of a shatunny neck of a cranked shaft and to consider a working gap of the bearing. The demanded thickness of the bearing can be calculated as follows.

Example

Diameter of the bearing of 62,51 mm
Diameter of a neck of the crankshaft of 57,95 mm
4,56 mm
Working gap of the bearing of-0,04 mm
4,52 mm ±2
2,26 mm

The demanded thickness of the loose leaf of the radical bearing determine by the table after consultation of the dealer of Mercedes-Benz.

DIESEL ENGINES

For determination of the demanded thickness of new shatunny loose leaves it is necessary engines. For determination of the demanded size of loose leaves it is necessary to consult at the dealer of Mercedes-Benz.