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
   + 3.4. 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
         3.5.19.1. Technical characteristics
         3.5.19.2. Head of the block of cylinders
         3.5.19.3. Pistons and rods
         3.5.19.4. Bent shaft
         3.5.19.5. Block of cylinders of the engine
         3.5.19.6. Radical bearings and bearings of rods
         3.5.19.7. Engine balance of assembly at capital repairs
         3.5.19.8. Piston rings
         3.5.19.9. Working gaps of radical bearings
         3.5.19.10. Working gaps of conrod bearings
         3.5.19.11. Start of the engine after capital repairs
   + 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
785173a6


3.5.19.1. Technical characteristics

GENERAL INFORMATION

Head of the block of cylinders
The most admissible neploskosnost of the lower surface of a head of the block of cylinders
N/A
Height of a head of the block of cylinders
140 mm
Valve saddle width
1,4 – 1,8 mm
Valves
Height of the directing valve plug in a cylinder head
11,20 – 11,50 mm
Diameter of a core of the valve:
  – inlet valve:
     • nominal (K)
5,955 – 5,970 mm
     • the 1st increased size (0,075 mm – K1)
6,030 – 6,045 mm
     • the 2nd increased size (0,150 mm – K2)
6,105 – 6,120 mm
  – final valve:
     • nominal (K)
5,945 – 5,960 mm
     • the 1st increased size (0,075 mm – K1)
6,020 – 6,035 mm
     • the 2nd increased size (0,150 mm – K2)
6,095 – 6,110 mm
Valve core exit
less than 0,03 mm
Diameter of an opening of the directing valve plug:
  – nominal (K)
6,000 – 6,012 mm
  – the 1st increased size (0,075 mm – K1)
6,075 – 6,090 mm
  – the 2nd increased size (0,150 mm – K2)
6,150 – 6,165 mm
Gap between a core and a guide of the valve
N/A
Valve length:
  – new
97,1 – 97,2 mm
  – minimum
96,9 – 97,0 mm
Diameter of a plate of the valve:
  – inlet valve
28,9 – 29,1 mm
  – final valve
25,9 – 26,1 mm
Block of cylinders
The most admissible neploskosnost
N/A
Diameters of cylinders:
  – standard:
     • group of the sizes 8
83,975 – 83,985 mm
     • group of the sizes 99
83,985 – 83,995 mm
     • group of the sizes 00
83,995 – 84,005 mm
     • group of the sizes 01
84,005 – 84,015 mm
     • group of the sizes 02
84,015 – 84,025 mm
  – the increased size (0,5 mm)
N/A
Maximum ovality of the cylinder
N/A
Maximum conicity of the cylinder
N/A
Pistons and rings
Diameter of the piston:
  – standard:
     • group of the sizes 8
N/A
     • group of the sizes 99
N/A
     • group of the sizes 00
N/A
     • group of the sizes 01
N/A
     • group of the sizes 02
N/A
  – the increased size (0,5 mm)
N/A
Piston gap in the cylinder
N/A
Gaps of the lock of the piston ring (established in an opening):
  – top and lower sealing rings
0,3 – 0,5 mm
  – oil scraper ring
0,4 – 1,4 mm
Gap of a piston ring in the piston:
  – top and lower sealing rings
0,02 – 0,04 mm
  – oil scraper ring
0,01 – 0,03 mm
Thickness of a piston ring:
  – top sealing ring:
     • X20DTL engine
2,00 mm
     • X20DTH engine
2,50 mm
  – lower sealing ring:
     • X20DTL engine
1,75 mm
     • X20DTH engine
2,00 mm
  – oil scraper ring
3,0 mm
Piston fingers
Diameter
29 mm
Length
68 mm
Rod
Side gap of the lower head of a rod
0,07 – 0,28 mm
Bent shaft
Axial side play
0,05 – 0,15 mm
Diameters of radical necks:
  – 1st group of the sizes (green)
67,966 – 67,974 mm
  – 2nd group of the sizes (brown)
67,974 – 67,982 mm
  – 1st reduced (0,25 mm)
67,716 – 67,732 mm
  – the 2nd reduced (0,50 mm)
67,466 – 67,482 mm
Diameters of conrod necks:
  – standard
48,971 – 48,990 mm
  – 1st reduced (0,25 mm)
48,721 – 48,740 mm
  – the 2nd reduced (0,50 mm)
48,471 – 48,490 mm
Maximum ovality
0,03 mm
Maximum conicity
N/A
Working gap of the radical bearing
0,016 – 0,069 mm
Working gap of the bearing of the lower head of a rod
0,010 – 0,061 mm