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
   5.2. General information
   5.3. Repair operations on the engine established in the car
   5.4. Check of pressure of compression
   5.5. Top dead point (VMT) of the piston of the first cylinder
   5.6. Cover of a head of the block of cylinders
   5.7. Pulley cranked shaft / quencher of krutilny fluctuations and nave
   + 5.8. Covers of a driving chain
   5.9. Check and replacement of a driving chain
   + 5.10. Mechanism of a tension of a driving chain, asterisk and uspokoitel of a chain
   5.11. Boot of the mechanism of a tension
   5.12. Mechanism of adjustment of a camshaft
   5.13. Camshafts and pushers
   5.14. Check and adjustment of provision of camshafts
   5.15. Head of the block of cylinders
   5.16. Oil pallet
   5.17. Oil pump chain and drive
   5.18. Drive flywheel / plate
   5.19. Replacement of sealing rings
   5.20. Bearing replacement in an end face of a cranked shaft
   5.21. Check and replacement of a support of the power unit
   5.22. Oil radiator
+ 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






5.17. Oil pump chain and drive

OIL PUMP

Removal

Unscrewing of a bolt of fastening of a maslozaborny tube to an arm

Unscrewing of a bolt of fastening of a masloulavlivayushchy plate

Arrangement of the bolts, fixing the oil pump and a masloulavlivayushchy plate

Removal of a masloulavlivayushchy plate

Unscrewing of a bolt of fastening of the oil pump

Removal of the oil pump

PERFORMANCE ORDER
1. Remove the oil pallet.
2. Unscrew a bolt and remove an asterisk of the oil pump together with a driving chain.
3. Unscrew a bolt of fastening of a maslozaborny tube to an arm (see fig. Unscrewing of a bolt of fastening of a maslozaborny tube to an arm).
4. Unscrew bolts and remove маслоулав a livayushchy plate from the engine. Have in appearance that two bolts, fixing a masloulavlivayushchy plate, also fix the oil pump (see fig. Unscrewing of a bolt of fastening of a masloulavlivayushchy plate, the Arrangement of the bolts, fixing the oil pump and a masloulavlivayushchy plate, Removal of a masloulavlivayushchy plate).
5. Unscrew the remained bolt and remove the oil pump (see fig. Unscrewing of a bolt of fastening of the oil pump, Removal of the oil pump).

Check

Safety valve of pressure of oil of the oil pump
1–stopper;
2–pin;
3–spring;
4–piston;
5–case of the oil pump

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 (see fig. Safety valve of pressure of oil of the oil pump).
4. Clear all details, check their condition and, if necessary, replace.
5. 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 fill the oil pump with pure engine oil.
2. An asterisk of the oil pump establish the convex party to the pump.

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. Unscrew spark plugs.
3. Weaken a bolt of fastening of an asterisk of the oil pump.
4. Using a nazhdachny circle or вулканит, сошлифуйте rivets of one of chain links.
5. Remove fixing plate of a link of a chain and beat out a chain link.
6. Unscrew a bolt of fastening of an asterisk of the oil pump and remove an asterisk from a pump shaft.
7. Establish a new asterisk on a shaft of the oil pump the convex party to the pump.
8. 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.
9. After an exit of a new chain disconnect from it an old chain.
10. Establish the ends of a new chain on an asterisk of the oil pump and connect them a connecting link.
11. 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.
12. Tighten a bolt of fastening of an asterisk of the oil pump the demanded moment.
13. Establish the oil pallet.
14. Screw in spark plugs.