Mercedes W124

since 1985-1995 of release

Repair and car operation

W124 Mercedes
+ Governing bodies and control devices
+ MAINTENANCE
+ 2. Maintenance (diesel engines)
- ENGINE
   3.2. General data
   3.3. Repair operations on the engine established in the car
   3.4. Check of pressure of compression
   3.5. Top dead point (VMT) of the piston of the first cylinder
   3.6. Cover of a head of the block of cylinders
   3.7. Pulley cranked shaft / quencher of krutilny fluctuations and nave
   + 3.8. Cover of a driving chain
   3.9. Check and replacement of a driving chain
   + 3.10. Mechanism of a tension of a driving chain, asterisk and uspokoitel of a chain
   3.11. Intermediate shaft
   + 3.12. Drive of valves, pushers and camshaft
   - 3.13. Head of the block of cylinders
      3.13.1. Removal
      3.13.2. Preparation of a head for installation
      3.13.3. Installation
   3.14. Oil pallet
   3.15. Oil pump
   3.16. Drive flywheel / plate
   3.17. Replacement of sealing rings of a cranked shaft
   3.18. Bearing replacement in an end face of a cranked shaft
   3.19. Check and replacement of a support of the power unit
+ 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
+ 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

3.13.1. Removal

GENERAL INFORMATION

The head of the block of cylinders acts in film on the cold engine together with inlet and final collectors.

Arrangement of bolts of fastening of an inlet collector on engines with system of injection of fuel

Removal of a hose of supply of cooling liquid from the union in a back part of a head of the block of cylinders

Detachment of the electric socket from the sensor of temperature of cooling liquid

Arrangement of bolts of fastening of a cover of a driving chain to a head of the block of cylinders

PERFORMANCE ORDER

1. Remove a weight wire from the accumulator.

2. Open and establish a cowl in vertical situation.

3. Merge cooling liquid from cooling system.

4. Remove the air filter.

5. Remove an asterisk of a camshaft and the top uspokoitel of a chain.

6. Remove an auxiliary driving belt.

7. Disconnect a reception exhaust pipe from a final collector.

8. Unscrew the nuts, fixing a pipe for щупа measurements of level of oil to a final collector.

9. Remove an accelerator cable from the butterfly valve lever.

10. Unscrew a rack from an inlet collector. On engines with the carburetor unscrew a bolt, fixing a rack to a collector. On engines with system of injection of fuel unscrew two bolts and remove a returnable spring of a butterfly valve (see fig. An arrangement of bolts of fastening of an inlet collector on engines with system of injection of fuel).

11. Weaken a collar and remove a hose of supply of cooling liquid to a heater from the union in a back part of a head of the block of cylinders (see fig. Removal of a hose of supply of cooling liquid from the union in a back part of a head of the block of cylinders).

12. Disconnect the electric socket from the sensor of an angle of rotation of a cranked shaft and the left four-contact socket from the control unit ignition.

13. Unscrew a nut and disconnect a wire from a clip on fastening of the diagnostic socket.

14. Unscrew the diagnostic socket, then disconnect the socket of gray color from a back part of a nest.

15. Disconnect electric sockets from sensors located on a head of the block of cylinders and an inlet collector (see fig. A detachment of the electric socket from the sensor of temperature of cooling liquid).

16. Disconnect vacuum hoses from a head of the block of cylinders and an inlet collector.

17. Remove a vacuum hose of the vacuum amplifier of brakes from the union of an inlet collector.

18. On models with system of injection of fuel remove pressure in the fuel highway.

19. Disconnect submitting and returnable fuel hoses from the carburetor or a regulator of pressure of fuel. Close the ends of hoses the corresponding jams.

20. On models with central air of air unscrew an arm of a pipe of the conditioner from a head of the block of cylinders.

21. Remove the generator.

22. Unscrew three top bolts, fixing a cover of a driving chain to a head of the block of cylinders (see fig. An arrangement of bolts of fastening of a cover of a driving chain to a head of the block of cylinders).

23. Check that all wires and hoses are disconnected from a head of the block of cylinders.

24. Working in sequence, return to a tightening (see fig. Sequence of a tightening of bolts of a head of the block of cylinders), weaken bolts of fastening of a head of the block of cylinders on 1/3 turns for each pass before complete unscrewing of bolts.

25. Remove a head of the block of cylinders from the block of cylinders.

26. Remove laying of a head of the block of cylinders.