Opel Omega

since 1993-1999 release

Repair and operation of the car

Opel Omega
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Repair of engines
   + 3.1. SOHC engines of 2,0 liters
   + 3.2. DOHC engines of 2,0 liters
   + 3.3. 2,5 and 3,0 liters engines
   + 3.4. Partition of all petrol engines
   - 3.5. 2,0 liters diesel engine
      3.5.1. Technical characteristics
      3.5.2. Repair operations on the engine installed in the car
      3.5.3. Check of pressure of compression 3_5_4.htm
      3.5.5. Gas distribution mechanism
      3.5.6. Cover of a head of the block of cylinders
      3.5.7. Pulley of a bent shaft
      3.5.8. Chain cover
      3.5.9. Natyazhiteli of a chain
      3.5.10. Chains and asterisks
      3.5.11. Camshafts and pushers
      3.5.12. Head of the block of cylinders
      3.5.13. Oil pallet
      3.5.14. Oil pump
      3.5.15. Oil heater
      3.5.16. Sealing rings of a bent shaft
      3.5.17. Flywheel
      3.5.18. Suspension brackets of the power unit
      + 3.5.19. Capital repairs of the 2,0 liters diesel engine
   + 3.6. 2,5 liters diesel six-cylinder engine
+ 4. Heating system and ventilation
+ 5. Fuel, exhaust systems
+ 6. System of start of the engine
+ 7. System of ignition
+ 8. Coupling
+ 9. Transmissions
+ 10. Main transfer, half shafts
+ 11. Brake system
+ 12. Suspension bracket and steering
+ 13. Body
+ 14. Body electric equipment

3.5.14. Oil pump


Tightening of screws of fastening of the oil pump


The oil pump is located in a chain cover therefore removal of the oil pump is made along with a chain cover.


1. Unscrew screws and uncover the pump an internal part of a cover of a chain.
2. Using a marker, note a relative positioning of an internal and external rotor of the oil pump. Remove an internal rotor of the oil pump.
3. Remove an external rotor of the oil pump.
4. Unscrew a bolt of fastening of the safety valve of pressure from the chain cover basis
5. Take a spring, the plug (it is specified by an arrow in the drawing at the left) and a plunger of the safety valve of pressure (the drawing on the right), remove a sealing ring from a bolt.
6. Unscrew a safety valve bolt from a back part of a cover of a chain.
7. Remove a spring and a pusher of the valve of safety.
8. Clear all details of the oil pump and investigate rotors and pushers of valves on existence of wear or development. If necessary replace worn-out details.
9. Collect the oil pump in the sequence, the return dismantling, taking into account the next moments:
      – check that rotors are established according to earlier put tags;
      – establish new sealing rings to bolts of fastening of the safety valve and valve of safety;
      – tighten screws of fastening of a cover of the oil pump the required moment;
      – fill the pump with engine oil, turning at the same time an internal rotor of the oil pump.


Install a chain cover on the engine.