Opel Vectra B

since 1995 of release

Repair and car operation



Vektr B. Opel
+ 1.1. Governing bodies and control devices
+ 2. Maintenance
- 3. Engines
   - 3.1. Repair of the SOCH engine established in the car
      3.1.1. Introduction
      3.1.2. Technical characteristics
      3.1.3. Check of pressure of compression
      3.1.4. Top dead point (VMT) of the piston of the first cylinder
      3.1.5. Cover of a head of the block of cylinders
      3.1.6. Pulley of a cranked shaft
      3.1.7. Casings of a gear belt
      3.1.8. Gear belt
      3.1.9. Mechanism of a tension of a gear belt and pulleys
      3.1.10. Replacement of a sealing ring of a cam-shaft
      3.1.11. Cam-shaft and cam-shaft cases
      3.1.12. Hydraulic pushers
      3.1.13. Head of the block of cylinders
      3.1.14. Oil pallet
      3.1.15. Oil pump
      3.1.16. Drive flywheel / plate
      3.1.17. Replacement of sealing rings of a cranked shaft
      3.1.18. Suspension bracket of the power unit
   + 3.2. Repair of the DOCH engine established in the car
   + 3.3. Repair of the diesel engine of 1,7 l established in the car
   + 3.4. Repair of the diesel engine of 2,0 l established in the car
   + 3.5. Major maintenance of engines
+ 4. Heating, ventilation
+ 5. Fuel system
+ 6. Systems of start, ignition
+ 7. Transmission
+ 8. Brake system
+ 9. Running gear
+ 10. Body
+ 11. Electric equipment
+ 12. Main malfunctions





3.1.13. Head of the block of cylinders

Removal
Prevention

Removal of a head of the block of cylinders make on the cold engine. For fastening of a head of the block of cylinders it is necessary to use new bolts.


PERFORMANCE ORDER
1. Depressurize fuel system and remove a weight wire from the accumulator.
2. Merge cooling liquid from system of cooling and unscrew spark plugs.
3. Remove a gear belt.
4. Remove inlet and final collectors. If dismantling of a head of the block of cylinders is not required, it can be removed together with collectors. But for this purpose it is necessary to execute the following actions:

  – disconnect electric sockets from the throttle and collector case and release a plait of wires from an inlet collector;
  – disconnect hoses of supply of fuel from the case of a throttle and hoses of supply of cooling liquid to an inlet collector;
  – unscrew a bolt from a suspension bracket of support of an inlet collector and the top bolt of fastening of the generator;
  – disconnect an accelerator cable;
  – unscrew a reception exhaust pipe from a final collector and disconnect the oxygen sensor.

5. Uncover heads of the block of cylinders.
6. Remove a camshaft pulley.
7. Unscrew bolts of fastening of a back casing of a gear belt to the camshaft case.
8. Disconnect electric sockets from the DIS block and the sensor of temperature of cooling liquid.
9. Weaken a collar and disconnect a hose of cooling liquid from the thermostat case.
10. Check that all hoses, pipes and wires are disconnected from a head of the block of cylinders.
11. In sequence, return to a tightening, gradually unscrew bolts of fastening of a head of the block of cylinders.
12. Remove the camshaft case from a head of the block of cylinders.
13. Remove a head of the block of cylinders from the block of cylinders. Thus do not displace pushers and blocks of axial pressure.

14. Remove laying of a head of the block of cylinders.

Preparation for installation

PERFORMANCE ORDER
1. Interfaced surfaces of a head and the block of cylinders should be absolutely pure. For their cleaning use a firm plastic or wooden scraper. When cleaning be careful, as the aluminum alloy is very easy for damaging. Check that the deposit did not get to oil and water canals. It is especially important for greasing system as the deposit can block supply of oil to engine components. If necessary clear channels.
2. Check interfaced surfaces of a head and the block of cylinders on existence of notches, deep scratches and other damages. If defects small, they can be removed with machining. But at major defects of a detail are subject to replacement.
3. Using a metal ruler and щуп, check planeness of interfaced surfaces.
4. Clear openings under bolts in the block. Bolt screwing up in the opening filled with oil can break off the block because of hydraulic pressure.
5. Replace bolts of fastening of a head of the block of cylinders irrespective of their condition.

Installation

PERFORMANCE ORDER
1. Check that the piston of the first cylinder is in the top dead point.
2. Check that two directing cores are established in the block of cylinders.
3. Establish new laying of a head of the block of cylinders. Shooters noted the provision of directing pins.
4. At installation track, that marking of TORAHS / OBEN was directed up.
5. Establish a head of the block of cylinders on directing pins.
6. Check that interfaced surfaces of a head of the block of cylinders and the camshaft case, pure and dry. Check that the adjusting label on a pulley of a camshaft is above.
7. Apply a thin film hermetic on a surface of a head of the block of the cylinders, interfaced to the camshaft case.
8. Grease the top part of levers with pure engine oil.
9. Establish the camshaft case on a head of the block of cylinders.
10. Establish bolts of fastening of a head of the block of cylinders and tighten them by hand.
11. Gradually and consistently tighten bolts of fastening of a head of the block of cylinders according to the requirements shown in subsection 3.1.2.
12. Screw in bolts of fastening of a back casing of a gear belt to the camshaft case.
13. Establish a pulley of a camshaft and a gear belt.
14. Connect electric sockets to components of a head of the block of cylinders.
15. Connect a hose of cooling liquid to a casing of the thermostat and fix a collar.
16. Connect collectors.
17. Establish a wheel and lower the car.
18. Check that all pipes and hoses are reliably connected and fill in cooling liquid in system of cooling and establish spark plugs.
19. Connect the accumulator, start the engine and check it on existence of leaks.