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
      - 3.10.2. Asterisks
         3.10.2.2. Asterisk of a cranked shaft
         3.10.2.3. Asterisk of an intermediate shaft
      + 3.10.3. Uspokoiteli of a chain
   3.11. Intermediate shaft
   + 3.12. Drive of valves, pushers and camshaft
   + 3.13. Head of the block of cylinders
   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






3.10.2. Asterisks

3.10.2.1. Camshaft asterisk

Removal

Fixing by a camshaft wrench from a provorachivaniye for a facet on a back part of a camshaft
 

Unscrewing of a bolt of fastening of an asterisk of a camshaft

Removal of an asterisk from a camshaft

PERFORMANCE ORDER
1. Remove the air filter.
2. Remove a krylchatka of the fan and a casing of the fan of a radiator.
3. At existence remove the pump of system of a being self-leveled back suspension bracket and move it aside, without disconnecting from it hoses.
4. Uncover heads of the block of cylinders.
5. Turn a cranked shaft of the engine and establish the piston of the first cylinder in the top dead point. Check that all adjusting labels were combined with indexes.
6. Remove the mechanism of a tension of a driving chain.
7. Using paint, put a combination label on an asterisk of a camshaft and a link of a driving chain.
8. A wrench fix a camshaft from a provorachivaniye for a facet in a back part of a camshaft and unscrew a bolt of fastening of an asterisk of a camshaft (see fig. Fixing by a camshaft wrench from a provorachivaniye for a facet on a back part of a camshaft, Unscrewing of a bolt of fastening of an asterisk of a camshaft).
9. Remove an asterisk from a camshaft and take it from a driving chain. Thus support a chain in constantly tense situation in order that she did not act in film from an asterisk of an intermediate shaft or a cranked shaft (see fig. Removal of an asterisk from a camshaft).
10. Remove from a camshaft a segment shponka.

Check

PERFORMANCE ORDER
1. Check a condition of teeths on an asterisk. Teeths on an asterisk have симметрич a ny form and in case of development on the one hand teeths it is necessary to replace an asterisk.

Installation

PERFORMANCE ORDER
1. Establish a segment shponka in a camshaft groove.
2. Check that adjusting labels of distributive and cranked shaft are combined with indexes. At installation of a new asterisk put on it a label in the same place, as on an old asterisk.
3. Insert an asterisk into a chain according to earlier put labels.
4. Establish an asterisk on a camshaft. On models with a single-row chain the ledge of a nave of an asterisk should be directed to a camshaft, and on models with a dvukhryadny chain the bent party of an asterisk should be directed to a camshaft.
5. Fix a camshaft from a provorachivaniye and screw in a bolt of fastening of an asterisk, having tightened it the demanded moment.
6. Establish the mechanism of a tension of a driving chain.
7. For a bolt of a pulley of a cranked shaft turn a cranked shaft of the engine on two complete revolutions and check that all adjusting labels were combined with indexes. Otherwise remove an asterisk from a camshaft and move a chain on one tooth of an asterisk.
8. Establish a cover of a head of the block of cylinders.
9. Establish the system pump самовырав нивающейся a back suspension bracket.
10. Establish a krylchatka of the fan and a casing.
11. Establish the air filter.