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

3.5.19.2. Head of the block of cylinders

 Dismantling

PERFORMANCE ORDER
1. Remove the camshaft, levers and hydraulic pushers of a head of the block of cylinders. Unscrew glow plugs and remove a head of the block of cylinders from the engine.
2. On all models, using the device for compression of a spring of the valve, squeeze each spring and remove crackers from a valve end face.
3. Remove the device for compression of a spring and take a plate springs and a spring.
4. Flat-nose pliers, being careful, remove a maslootrazhatelny cap.
5. Remove a spring nest.
6. When the spring of the valve is compressed and the cup of a spring is not removed from crackers, it is necessary to strike with the hammer through wooden whetstone a spring cup that will lead to release of crackers.
7. Take the valve via the combustion chamber. Each valve you store in a separate plastic bag together with a plate springs, a spring, a nest of a spring and crackers for their further installation on the places.

Cleaning of a head of the block of cylinders

PERFORMANCE ORDER
1. Remove the remains of old laying from a head of the block of cylinders.
2. Clear a deposit from combustion chambers, then wash up a head in the corresponding solvent.
3. Clear of carbonaceous deposits of the valve, perhaps, even with application of a wire brush.

Check

HEAD OF THE BLOCK OF CYLINDERS

Check of planeness of a head of the block of cylinders

Measurement of a vystupaniye of the vortex camera from a head of the block of cylinders

PERFORMANCE ORDER
1. Carefully examine a head of the block of cylinders on existence of cracks and other damages. In the presence of cracks the head is subject to replacement.
2. Using a metal ruler and the probe, check planeness of the interfaced surface of a head of the block of cylinders. At not planeness of more than 0,1 mm it is necessary to pereshlifovat a head, at the same time its height has to conform to requirements.
3. Check a condition of saddles of valves. If they are burned, worn-out or have defects, they need to be replaced. If wear of a saddle of the valve is insignificant, they need to be ground in. Check the directing plugs of valves for wear, inserting into them a core of the valve and moving it aside. Movement has to be insignificant. If movement is excessive, take the valve and measure diameter of a core of the valve. If necessary replace the valve. If the core of the valve is not worn-out, so the directing plug which needs to be replaced is worn-out. Replacement of the directing plugs of valves should be made at service station.
4. If saddles of valves have to be pereshlifovana, this operation needs to be executed after installation of new guides of valves.

VALVES

PERFORMANCE ORDER
1. Check a plate of each valve for local corrosion, prozhog, cracks and the general wear. Check a valve core for wear and a bend. Check wear of an end face of a core of the valve. With any defects the valve is subject to replacement.
2. Measure by a micrometer diameter of a core of the valve in several places on core length. Any essential distinction in the obtained data indicates wear of a core of the valve and obligatory replacement of the valve.
3. If valves are in satisfactory condition, they have to be inserted into the places and are ground in. If plates of valves or a saddle are strongly worn-out, before their grinding in it is necessary to process mechanically or even to replace.

Grinding in of valves

PERFORMANCE ORDER
1. Establish a head of the block of cylinders by combustion chambers up on wooden whetstones.
2. Grease with paste for grinding in of the place on a plate of the valve and a valve saddle, install the valve on the place and on a plate of the valve establish a sucker with the holder (handle). Rotating the valve a sucker in different directions, grind in the valve, and it is periodically necessary to raise the valve for redistribution of pritirochny paste.
3. If rough pritirochny paste is used, to make grinding in before emergence of a uniform opaque surface on a saddle of the valve and the valve.
4. Then erase the used composition of paste and repeat process of grinding in with fine paste. To make grinding in before emergence of easy gray and opaque color.
5. Carefully remove traces of pritirochny paste, using the corresponding solvent.

VALVE ELEMENTS

PERFORMANCE ORDER
1. Check valvate springs for damage signs.
2. Establish springs to one of end faces on a bed, check a spring axis deviation from the vertical plane and length of springs. In case of damage of one of springs it is necessary to replace all springs in a set.
3. Replace maslootrazhatelny caps irrespective of their state.

Assembly of a head of the block of cylinders

PERFORMANCE ORDER
1. Oil cores of valves engine and insert them on the places. The valve establish on those places where they were ground in.
2. Establish a spring nest.
3. Install the thin-walled protective plug on a valve core.
4. Lower a maslootrazhatelny cap in fresh engine oil and establish it on a valve core into place, being careful not to damage its working edges. For installation of maslootrazhatelny caps use a special metal mandrel.
5. Establish a valvate spring and a plate of a spring.
6. Special adaptation squeeze a valvate spring and establish crackers in dredging of a core of the valve and grease them. Remove the device for compression of a spring. Repeat this operation on other valves.
7. Knock with the hammer through wooden whetstone on a valve core end face in order that all elements of the valve accurately were established on the places.
8. Install a head on the block of cylinders and establish hydraulic pushers, levers and the camshaft.