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
      3.1.1. Technical characteristics
      3.1.2. Check of a compression
      3.1.3. Top Dead Point (TDP) of the N1 piston
      3.1.4. Camshaft cover
      3.1.5. Pulley of a bent shaft
      3.1.6. Covers of a gas-distributing belt
      3.1.7. Gas-distributing belt
      3.1.8. Natyazhitel of a gas-distributing belt and asterisk
      3.1.9. Camshaft epiploon
      3.1.10. Casing of the camshaft and camshaft
      3.1.11. Pushers and hydraulic elevators
      3.1.12. Head of cylinders
      3.1.13. Oil pallet
      3.1.14. Oil pump
      3.1.15. Flywheel
      3.1.16. Epiploons of a bent shaft
      3.1.17. Fastenings of the engine and transmission
   + 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
   + 3.6. 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


3.1.14. Oil pump


1. Merge engine oil and remove an oil filter.
2. Take off a gas-distributing belt.
3. Remove asterisks of cranked and distributive shaft. Remove a natyazhitel of a gas-distributing belt.
4. Remove a back cover of a gas-distributing belt.
5. Remove the oil pallet and a maslozaborny branch pipe.
6. Disconnect a wire from the oil pressure sensor switch.
7. Unscrew bolts and remove the oil pump.


1. Unscrew screws and uncover the oil pump.
2. Mark the correct adjusting provision of gear gear wheels of the pump.
3. Get gear gear wheels (it is specified by an arrow).
4. Unscrew a cap (4) of the reducing valve and take a spring and the piston (1) (2 – a spring, 3 – a sealing washer).
5. Carefully clean all details of the oil pump and examine them on existence of wear tracks and damages. If gear wheels or a casing of the pump are damaged, then the pump needs to be replaced.
6. Measure a gap between teeth of gear wheels (the drawing at the left) and a gap between the plane of the pump and the plane of gear wheels (the drawing on the right). If necessary the pump needs to be replaced.
7. Collect the pump upside-down.


1. Remove an old epiploon of a bent shaft and establish new.
2. Install new laying on the block of cylinders.
3. Install the pump, insert and tighten bolts.
4. Establish the remained details.