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
      3.3.1. Technical characteristics
      3.3.2. Check of a compression
      3.3.3. Top Dead Point (TDP) of the N1 piston
      3.3.4. Covers of camshafts
      3.3.5. Pulley of a bent shaft
      3.3.6. Covers of a gas-distributing belt
      3.3.7. Gas-distributing belt
      3.3.8. Natyazhitel of a belt, asterisks and intermediate pulleys
      3.3.9. Epiploons of camshafts
      3.3.10. Camshafts and pushers
      3.3.11. Head of cylinders
      3.3.12. Oil pallet
      3.3.13. Oil pump
      3.3.14. Oil heater
      3.3.15. Flywheel and drive plate
      3.3.16. Epiploons of a bent shaft
      3.3.17. Fastenings of the engine and transmission
   + 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


3.3.11. Head of cylinders


Sequence of tightening of bolts of a head of cylinders


1. Remove the accumulator.
2. Remove levers of screen wipers of a windshield and the reflecting panel.
3. Remove an inlet collector.
4. Merge cooling liquid and unscrew spark plugs.
5. Disconnect wires from the sensor of the indicator of temperature of cooling liquid and the sensor of temperature of cooling liquid of a control system of the engine (are specified by shooters).
6. Disconnect hoses of cooling liquid from a final branch pipe (are specified by shooters).
7. Unscrew bolts and disconnect a final branch pipe and sealing washers (are specified by shooters).
8. Take off a gas-distributing belt.
9. Remove asterisks of camshafts, an arm of a pulley of a natyazhitel and the top directing pulley and the lower pulley.
10. Remove the water pump.
11. Remove a back cover of a gas-distributing belt.
Left head of cylinders
12. Uncover a head.
13. Disconnect wires of both heads from the DIS module and remove the module. Unscrew grounding wires from the left head.
14. Uncover the relay block in the left corner of office of the engine and disconnect wires from the block of electronic control by the engine.
15. Disconnect the relay of system of injection of fuel.
16. Disconnect a socket fork.
17. Disconnect a plait of wires from the relay block.
18. Disconnect sockets of the plait of wires located behind the accumulator.
19. If the plait of wires of the engine is connected to the block of fuses, remove the block.
20. Disconnect a plait from the block.
21. After you disconnect all wires, arrange a plait of wires away from a head of cylinders.
22. Remove the left forward pipe of final system of the engine.
23. Remove the pump of the hydraulic booster of steering.
24. Disconnect the top hose of a radiator from the tube located in a forward part of the left head.
25. Unscrew the bolt fixing a tube of cooling liquid and an ear for raising of the engine to a head.
26. Disconnect an ear and a tube from a thermostat casing.
27. Get the oil probe and a tube of the probe from the block of cylinders.
28. Remove the camshaft of final valves.
29. Unscrew head bolts in the sequence of the return sequence of tightening (see rice. Sequence of tightening of bolts of a head of cylinders).
30. Remove a head of cylinders.
31. Remove laying of a head.
Right head of cylinders
32. Remove an oil filter. If necessary replace it.
33. Twist nuts (are specified by shooters), the fixing tubes of the oil heater to the block of cylinders.
34. Unscrew bolts, the fixing tubes to the oil heater, remove sealing washers (are specified by shooters) and disconnect tubes from the oil heater.
35. Disconnect the lower hose of a radiator of the engine and a hose of a broad tank.
36. Disconnect a heater hose (it is specified by an arrow) from a tube of the cooling liquid located in the right part of the engine.
37. Unscrew bolts and pick up the phone. Remove a sealing ring.
38. Remove a forward right pipe of final system.
39. Remove the camshaft of final valves.
40. Remove the right head of cylinders.

Preparation for installation

1. Carefully clean the joined surfaces of a head and the block of cylinders. Clean water and oil channels in a head. Clean heads of pistons from a deposit.
2. Examine the joined surfaces on existence of deep scratches, dents and other damages. Small scratches can be smoothed out an emery paper, strong damages need to be processed on the machine.
3. Check whether the surface on which laying is established is deformed.
4. Clean carvings of bolts in a head of cylinders. Prepare new bolts.


Left head of cylinders
1. Check that the bent shaft was, still, turned approximately on 60 ° back.
2. Establish laying of a head on adjusting pins (are specified by shooters).
3. Check that the tag on laying was turned up.
4. Establish a head.
5. Oil carvings of new bolts of a head and insert bolts.
6. Tighten head bolts in the specified sequence (see rice. Sequence of tightening of bolts of a head of cylinders).
7. Tighten head bolts till the set inhaling moment.
8. Hold on head bolts on a necessary corner.
9. Establish the remained details.
Right head of cylinders
10. Installation of the right head of cylinders is carried out similar to installation of the left head.