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
   6.2. General information
   6.3. Repair operations on the engine established in the car
   6.4. Check of pressure of compression
   6.5. Top dead point (VMT) of the piston of the first cylinder
   6.6. Cover of a head of the block of cylinders
   6.7. Pulley cranked shaft / quencher of krutilny fluctuations and nave
   6.8. Cover of a driving chain
   6.9. Driving chain
   + 6.10. Mechanism of a tension of a driving chain, asterisk and uspokoitel of a chain
   + 6.11. Camshafts and pushers
   6.12. Head of the block of cylinders
   6.13. Oil pallet
   6.14. Oil pump and driving chain
   6.15. Drive flywheel / plate
   6.16. Replacement of sealing rings of a cranked shaft
+ 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






6.14. Oil pump and driving chain

GENERAL INFORMATION

Greasing system
1–case of the oil pump of the 4th cylinder engine;
2–case of the oil pump of 5 cylinder engines;
3–arm of the mesh filter;
4–mesh filter;
5–gear wheel of the oil pump;
6–leading gear wheel of the oil pump;
7–safety valve of pressure;
8–asterisk;
9–driving chain of the oil pump;
10-natyazhitel of a chain;
11-case of the oil filter;
12-cover;
13-a filtering element;
14-laying;
15-pressure sensor

Safety valve of pressure of oil of the oil pump

1–stopper;

2–spring;

3–a directing pin;

4–piston

OIL PUMP

Removal

Arrangement of a bolt of fastening of an asterisk of the oil pump (1) and bolts of fastening of the oil pump (2)

PERFORMANCE ORDER
1. Remove the oil pallet.
2. Unscrew a bolt and remove an asterisk together with a driving chain from a shaft of the oil pump.
3. On 5-and 6-cylinder engines unscrew a bolt, fixing a maslopriyemny pipe to an arm.
4. Unscrew three bolts and remove the oil pump from the block of cylinders (see fig. Arrangement of a bolt of fastening of an asterisk of the oil pump and bolts of fastening of the oil pump)).

Check

PERFORMANCE ORDER
1. It is possible to check only details of a safety valve of pressure of oil.
2. Unscrew a stopper of a safety valve. Thus keep in mind that it is influenced by effort of the compressed spring.
3. Take a spring, directing pin and the piston.
4. Clear all details, check their condition and, if necessary, replace.
5. On engines with a masloulavlivayushchy plate on the block of cylinders at removal of the oil pump remove and clear a masloulavlivayushchy plate.
6. Establish details of a safety valve of pressure of oil in sequence, return to removal.

Installation

Installation is made in sequence, return to removal taking into account the next moments...

PERFORMANCE ORDER
1. Before installation of the oil pump fill it with pure engine oil.
2. An asterisk of the oil pump establish the convex party to the pump.
3. Fill in in the engine engine oil.

REPLACEMENT OF THE DRIVING CHAIN


Prevention

At replacement of a chain of a drive of the oil pump it is also necessary to replace an asterisk of the oil pump.

At removal of a chain it is necessary to use a nazhdachny circle or вулканит, for cutting of coming-out hats of one of chain links.


PERFORMANCE ORDER
1. Remove the oil pallet.
2. Weaken a bolt of fastening of an asterisk of the oil pump.
3. Using a nazhdachny circle or вулканит, сошлифуйте rivets of one of chain links.
4. Remove fixing plate of a link of a chain and beat out a chain link.
5. Unscrew a bolt of fastening of an asterisk of the oil pump and remove an asterisk from a pump shaft.
6. Establish a new asterisk on a shaft of the oil pump the convex party to the pump.
7. Using the link which has been removed from a chain, connect the end of an old chain to a new chain. Turning a cranked shaft of the engine clockwise, pass a new chain round an asterisk of a cranked shaft. Thus constantly support chain branches tense so that she did not act in film from an asterisk of a cranked shaft.
8. After an exit of a new chain disconnect from it an old chain.
9. Establish the ends of a new chain on an asterisk of the oil pump and connect them a connecting link.
10. Establish fixing plate on a connecting link of a chain and расклепайте a connecting link. Check that after a rasklepyvaniye of a connecting link there were no metal agnails.
11. Tighten a bolt of fastening of an asterisk of the oil pump the demanded moment.
12. Establish the oil pallet.