Removal and installation the engine (Opel Omega B)

Removal

1. Remove the hood.

2. Remove the battery.

3. Raise and support the front of the vehicle and remove the lower engine shield.

4. Drain the coolant and engine oil, remove the oil filter.

5. Bleed the fuel system and remove the engine control unit.



6. Remove the relay box cover and disconnect the connectors from the fuel injection system relay.



7. Disconnect the engine wire harness connectors from the relay block.



8. Disconnect the wire harness connectors located behind the battery.





9. Unscrew the ground wire at the front of the engine and, if the engine wiring harness is connected to the fuse block, remove the block.



10. Disconnect the wiring harness from the fuse box.

2.0L SOHC Engines

11. Remove the air cleaner and the front section of the intake manifold. Disconnect the fuel supply and return hoses from the fuel line. Disconnect the accelerator cable and the cruise control cable from the throttle body, remove the cable bracket. Disconnect the hoses from the intake manifold.

12. Remove the DIS module and install the engine lift bracket into place.

13. Disconnect the engine coolant hose from the pipe. Disconnect the upper radiator hose from the cylinder head.

14. Remove the radiator cooling fan.



15. Disconnect the air conditioning compressor (if it is installed) and move it to the side. Do not disconnect the hoses from the compressor.

16. Remove the power steering pump and move it to the side. Do not disconnect the hoses from the pump.

17. Secure the engine to the lift and remove the gearbox.

18. Make sure all hoses and wires that interfere with engine removal are disconnected.

19. Remove the nuts from the left and right engine mount brackets.

20. Remove the engine and lower it to the floor.

2.0L DOHC Engines

21. Remove the air filter and throttle body housing. Remove the front section of the exhaust pipe.

22. Disconnect the fuel hoses from the fuel line. Disconnect the hose from the secondary air intake system valve located on the exhaust manifold and disconnect all hoses from the intake manifold.

23. Disconnect the engine coolant hose from the pipe. Disconnect the upper radiator hose from the cylinder head.

24. Remove the engine following the steps (see pp. 14–21).

2.5 and 3.0 liter engines

25. Remove the windshield wiper motor.

26. Remove the radiator.

27. Disconnect the upper radiator hose from the coolant pipe.



28. Thoroughly clean the connections of the hoses and pipes of the power steering pump. Disconnect the fluid supply hose (A) from the pump and drain the fluid into a suitable container. Unscrew the nut and disconnect the pipe (B) from the pump.





29. Remove the air cleaner and air intakes. Disconnect the accelerator cable and cruise control cable from the throttle body and from the mounting bracket. Remove the front exhaust pipes. Disconnect the fuel hoses from the fuel line.



30. Disconnect all hoses from the intake manifold. Disconnect the hose from the secondary air intake system valve.



31. Disconnect the multi-flow air intake system hoses from the servo tube.





32. Disconnect the coolant hoses from the expansion tank.



33. Remove the tank fasteners



34. Remove the tank by disconnecting the wire from the fluid level sensor.



35. Disconnect the hoses from the heater core.





36. Disconnect the vacuum hose from the radiator shut-off valve.



37. For models equipped with air conditioning, disconnect the wire and refrigerant pipes from the compressor. Disconnect the wire from the compressor.



38. Disconnect the coolant pipes located above the left cylinder head.



39. Disconnect the coolant pipes located at the front of the engine.





40. Disconnect the shock absorber bracket and move the shock absorber to the side.

Warning! To perform the procedure described in points 37 to 40, you must contact a specialist.

41. Remove the engine lug caps, support the engine on a lift and remove the transmission.

42. Make sure all hoses and wires that interfere with engine removal are disconnected.

43. Remove the bolts and the shock absorbers from the left and right engine mounts.

44. Remove the nuts securing the left and right engine mounts to the engine brackets and body.



45. Remove the engine and lower it to the floor.

Installation

Installation is carried out in the reverse order of removal (don't forget to replace old gaskets and seals).