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
   4.2. General information
   4.3. Repair operations on the engine established in the car
   4.4. Check of pressure of compression
   4.5. Top dead point (VMT) of the piston of the first cylinder
   4.6. Cover of a head of the block of cylinders
   4.7. Pulley cranked shaft / quencher of krutilny fluctuations and nave
   + 4.8. Covers of a driving chain
   4.9. Driving chain
   - 4.10. Mechanism of a tension of a driving chain, asterisk and uspokoitel of a chain
      4.10.2. Asterisks
      4.10.3. Uspokoiteli
   + 4.11. Drive of valves, pushers and camshaft
   4.12. Head of the block of cylinders
   4.13. Oil pallet
   4.14. Oil pump
   4.15. Replacement of a chain of a drive of the oil pump
   4.16. Drive flywheel / plate
   4.17. Replacement of sealing rings
   4.18. Bearing replacement in an end face of a cranked shaft
   4.19. Check and replacement of a support of the power unit
+ 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

4.10. Mechanism of a tension of a driving chain, asterisk and uspokoitel of a chain

4.10.1. Mechanism of a tension of a driving chain

Removal

Prevention

At installation of a kolpachkovy nut of the mechanism of a tension it is necessary to use a new sealing ring.

Mechanism of a tension of a driving chain


1–kolpachkovy nut; 2–sealing ring; 3–spring; 4–bracket;	5–plunzher; 6–a ring with a carving; 7–case

The direction of extraction of a plunzher (1) with a bracket (2) from the case (3) mechanisms of a tension of a driving chain

PERFORMANCE ORDER

1. Remove a weight wire from the accumulator.

2. Open a cowl and establish it in vertical situation.

3. From the right forward party of the engine unscrew a kolpachkovy nut and take a spring and a sealing ring (see fig. Mechanism of a tension of a driving chain).

4. Using a face key, unscrew a ring with a carving and take the case of the mechanism of a tension.

5. Take from the case a plunzher with a bracket (see fig. The direction of extraction of a plunzher with a bracket from the case of the mechanism of a tension of a driving chain).

Check

PERFORMANCE ORDER

1. Clear details of the mechanism of a tension of a driving chain and check lack of wear on a plunzher and the case.

2. Check a condition of a bracket and a spring of the mechanism of a tension and, if necessary, replace them.

Installation

PERFORMANCE ORDER

1. Establish the case of the mechanism of a tension in a cover of a driving chain and fix it a ring with a carving, having tightened it the demanded moment.

2. Establish a plunzher with a bracket in the case of the mechanism of a tension against the stop brackets in a fillet in the case of the mechanism of a tension.

3. Establish a spring and screw a kolpachkovy nut with a new sealing ring and tighten it the demanded moment.

4. Connect a weight wire to the accumulator.