Opel Omega

since 1993-1999 release

Repair and operation of the car

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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



3.5.1. Technical characteristics

GENERAL INFORMATION

The engine with four cylinders cooled by water with one top camshaft put in action by a chain
Engine code:
  – turbo of low pressure
X20DTL
  – turbo of high pressure
X20DTH
Diameter of the cylinder
84 mm
Piston stroke
90 mm
Working volume
1995 cm3
Operating procedure of cylinders
1–3–4–2 (the N 1 cylinder is from a chain)
Direction of rotation of a bent shaft
clockwise, if to take a detached view chains
Extent of compression
18,5:1
Maximum power:
  – turbo of low pressure
60 kW at 4300 rpm
  – turbo of high pressure
74 kW at 4300 rpm
Maximum torque:
  – turbo of low pressure
185 Nanometer at 1800 – 2500 rpm
  – turbo of high pressure
205 Nanometer at 1600 – 2750 rpm
Compression pressure
17 – 24 bars
The maximum distinction of pressure of compression between any two cylinders
1,0 bars
Camshaft
Side play
0,04 – 0,14 mm
The most admissible radial beating
0,06 mm
Raising of a cam of the valve
8,0 mm
Lubrication system
Minimum admissible pressure of oil at turns of idling and temperature of the engine of 80 °C
1,5 bars

Moments of an inhaling, N. of m.

Hinged bolt of a basic plate of a pulley of the mechanism of a tension
42 Nanometer
Bolts of fastening of a rack of the mechanism of a tension
23 Nanometer
Bolts of fastening of a cover of bearings of the camshaft
20 Nanometer
Bolts of fastening of a cover of a head
8 Nanometer
Bolt of fastening of an asterisk of the camshaft:
  – stage 1
90 Nanometer
  – stage 2
to tighten on a corner 60 °
  – stage 3
to tighten on a corner 30 °
Bolts of fastening of a cover of the bearing of the lower head of a rod:
  – stage 1
35 Nanometer
  – stage 2
to tighten on a corner 45 °
  – stage 3
to tighten on a corner 15 °
Bolt of fastening of a pulley of a bent shaft:
  – stage 1
150 Nanometer
  – stage 2
to tighten on a corner 45 °
  – stage 3
to tighten on a corner 15 °
Bolts of fastening of a head of the block of cylinders:
  – stage 1
25 Nanometer
  – stage 2
to tighten on a corner 65 °
  – stage 3
to tighten on a corner 65 °
  – stage 4
to tighten on a corner 65 °
  – stage 5
to tighten on a corner 65 °
  – stage 6
to tighten on a corner 15 °
Bolts of fastening of the transmission to the engine:
  – M8 bolts
20 Nanometer
  – M10 bolts
40 Nanometer
  – M12 bolts
60 Nanometer
Bolts of fastening of a forward and right support of the power unit to the engine
60 Nanometer
Nuts of fastening of a forward and right suspension bracket of the power unit to the lower frame
45 Nanometer
Bolts of fastening of a back support of the power unit to a bracket
45 Nanometer
Bolts of fastening of a back support of the power unit to a frame
20 Nanometer
Bolts of draft of compensation of torque
60 Nanometer
Bolts of fastening of the transmission to the engine:
  – M8 bolts
20 Nanometer
  – M10 bolts
40 Nanometer
  – M12 bolts
60 Nanometer
Bolts of fastening of a flywheel:
  – stage 1
45 Nanometer
  – stage 2
to tighten on a corner 30 °
  – stage 3
to tighten on a corner 15 °
Bolt of fastening of an asterisk of the fuel pump
20 Nanometer
Bolts of fastening of covers of bearings:
  – stage 1
90 Nanometer
  – stage 2
to tighten on a corner 60 °
  – stage 3
to tighten on a corner 15 °
Safety valve of pressure of the oil pump
60 Nanometer
Cover of the oil pump
8 Nanometer
Bolts of fastening of a pipe of an oil receiver
8 Nanometer
Bolts of fastening of a spray of the block of cylinders
22 Nanometer
Bolts of fastening of the oil pallet to the block of cylinders
20 Nanometer
Bolts of fastening of the oil pallet to the transmission:
  – M8 bolts
20 Nanometer
  – M10 bolts
40 Nanometer
Masloslivny stopper
18 Nanometer
Hinged bolt of the left natyazhitel of a loop
20 Nanometer
Head of a natyazhitel of a loop
60 Nanometer