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Omega A (1986-1993) Omega B (1993-1999) Omega B2 (1999-2003)
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  • Engine — removal

Engine — removal (Opel Omega A)

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1. Place the car on a level surface, block the rear wheels, apply the handbrake. Jack up the front of the car and securely fasten it to the axle supports. Remove the front wheels and the lower engine compartment protection.

2. Remove the hood (see Section 11).

3. Remove the battery (see Section 12).

4. Drain the cooling system (Section 2).

5. Remove the cooling fan and radiator as described in Section 2. Remove the upper hose, lower radiator hose and expansion tank hose. Also disconnect the hoses from the coolant pump housing and the hoses from the heater matrix connections on the bulkhead.

6. Drain the engine oil, then install the drain plug on the oil pan and tighten it to the specified tightening torque Specification.

7. Loosen the union nuts, disconnect the oil cooler pipes from the engine. Unscrew the pipes from the oil cooler lines and remove them. Plug the oil cooler lines and engine passages to prevent dirt from entering.

8. Remove the generator as described in Section 12. Unscrew the generator mounting bracket and remove it from the engine.

9. Unscrew the power steering pump and move it away from the engine; liquid lines can be left connected.

10. Remove the cruise control unit.

11. On models with air conditioning, unscrew the compressor, move it away from the engine and unscrew the mounting bracket from the unit (see Section 11). Do not disconnect the refrigerant lines from the compressor.

12. Next, do the following:
  • a) Remove the intake manifold and air cleaner housing cover assembly.
  • b) Mark the location of the fuel pipes and disconnect them from the injectors.
  • c) Remove the exhaust pipe and mounting brackets, then remove the catalytic converter heat shield (if any).
  • d) Disconnect the vacuum hose and breather hose from the intake manifold.
  • e) Disconnect the throttle and cold start cables from the levers on the fuel pump.

13. Disconnect the electrical wiring from the following components.


  • a) Switches and sensors on the thermostat housing (Section 2).
  • b) Unscrew the ground cables from the intake manifold and the cylinder block side.
  • c) Oil pressure sensor/oil level sensor/oil thermal switch (if any).
  • d) Engine wiring connectors located in the center of the engine compartment bulkhead.

14. On manual transmission models, perform the following steps as described in Section 1A.
  • a) On models with hydraulic clutch, remove the heat shield, disconnect the hydraulic pipe from the clutch slave cylinder. Release the pipe from the transmission bracket.
  • b) On models with cable clutch, disconnect the cable from the release lever (see Section 5).
  • c) Disconnect the electrical wiring from the reverse light switch and speedometer drive.
  • d) Remove the gear shift rod.
  • e) Disconnect the propeller shaft from the rear of the transmission (see Section 7).
  • j) Support the weight of the transmission with a jack, then loosen and remove the rear mount crossmember from the transmission.

15. On models with automatic transmission, perform the following steps as described in Section 7B.
  • a) Disconnect the transmission breather hose and electrical connectors.
  • b) Disconnect the oil cooler hoses and plug them to prevent dirt from getting in. Disconnect the electrical wiring located behind the pipes.
  • c) Set the selector lever to the "N" position, then loosen the nut and disconnect the selector lever from the transmission shaft.
  • d) Disconnect the propeller shaft from the rear of the transmission (see Section 7).
  • e) Support the weight of the transmission with a jack, then unbolt and remove the rear mount crossmember from the transmission.

16. On all models, unscrew the engine shock absorbers on the left and right sides of the cylinder block and move them to the side.



17. Bring the winch up and attach it to the lifting eyes on the cylinder head. Support the weight of the engine.

18. Unbolt the left and right engine mounting bracket hangers, then check to make sure all components that would prevent the engine/transmission from being removed from the vehicle have been removed or disconnected. Check that components such as the power steering pump are secured so that they cannot be damaged during removal.

19. Lift the front end of the engine up, then remove the engine from the engine compartment. Be very careful not to damage the surrounding components in the engine compartment, especially the air conditioning system.

20. Mount the engine on suitable blocks of wood on the workbench.

21. Unscrew the mounting bolts, remove the flywheel/drive disk protective cover from the transmission (where is it used). On automatic transmission models, remove the washer and spacer behind the drive plate.

22. On models with automatic transmission, remove the bolts securing the torque converter to the drive plate. To access the bolts, crank the engine using the crankshaft damper bolt.

23. Loosen and remove the bolts, remove the starter from the transmission.

24. Loosen and remove the remaining bolts securing the transmission housing to the engine. Note the correct positions of each bolt (and corresponding pendants).

25. Carefully disconnect the transmission from the engine, being careful not to allow the transmission to hang on the input shaft.

26. Remove the location pins from the engine or transmission.


This article is available at russian, bulgarian, belarusian, ukrainian, serbian, croatian, romanian, polish, slovak, hungarian
Checking the article: Zinoviev Kirill

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Previous articles
Opel Omega A: Diesel engines
Next articles

Engine Removal Method
Basic actions requiring engine removal
Basic actions possible with the engine in a car
Compression Test — Description
General description
Diesel Engine Specifications
Engine disassembly — general description
Engine Auxiliaries — Removal
Engine — complete disassembly
Pallet — removal and installation with engine in car
Engine Mounting Brackets — Replacement
Cylinder head — removal and installation (engine in a car)


See similar ones from other Opel car manuals:
▶ Engine bay — 1.4L C 14 NZ engine Opel Astra F (1991-1998, petrol)
▶ Starting the engine from an auxiliary power source Opel Corsa B (1993-2000)
▶ Engine compartment fuse box Opel Insignia A (2008-2017)
▶ Engine hood Opel Kadett E (1984-1995)
▶ Engine oil level Opel Vectra A (1988-1995, petrol)
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Omega B2 (1999-2003) 
  • General information
  • User manual
  • Maintenance
  • Troubleshooting
  • Power unit
  • Petrol 4-cylinder
  • Petrol 6-cylinder
  • Engine overhaul
  • Diesel engines 2.0 l
  • Diesel engines 2.5 l
  • Cooling and heating
  • Injection system (gasoline)
  • Fuel system (diesel)
  • Fuel system
  • Exhaust system
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Main gear and shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Body elements
  • Electrical equipment
  • Equipment and devices
  • Electrical circuits
Omega B (1993-1999) 
  • General information
  • User manual
  • Tips for the car owner
  • Maintenance (gasoline)
  • Maintenance (diesel)
  • Power unit
  • Petrol engine SOHC 2.0 l
  • Petrol engine DOHC 2.0 l
  • Petrol engines 2.5 and 3.0 l
  • Repair of gasoline engines
  • Diesel engine 2.0 l
  • Diesel engine repair 2.0 l
  • Diesel engine 2.5 l
  • Cooling and heating
  • Power system (petrol)
  • Emission reduction
  • Fuel system (diesel 2.0 l)
  • Fuel system (diesel 2.5 l)
  • Launch system
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Drive shafts
  • Chassis
  • Brake system
  • Wheel suspension
  • Steering
  • Body
  • Exterior
  • Interior
  • Doors and windows
  • Electrical equipment
  • Equipment and devices
  • Wiring diagrams (early)
  • Wiring diagrams (late)
Omega A (1986-1993) 
  • General information
  • User manual
  • Maintenance
  • Changes and additions
  • Troubleshooting
  • Power unit
  • Gasoline engines
  • Diesel engines
  • Cooling system
  • Fuel system (gasoline)
  • Fuel system (diesel)
  • Ignition system
  • Transmission
  • Clutch
  • Mechanical gearbox
  • Automatic gearbox
  • Cardan shaft
  • Drive shafts
  • Chassis
  • Brake system
  • Car suspension
  • Steering
  • Body
  • Exterior
  • Interior
  • Electrical equipment
  • Power devices
  • Lighting and appliances
  • Electrical circuits
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