Opel Vectra A

since 1988-1995 of release

Repair and car operation

Vektr A. Opel
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
- 3. Repair of DOHC engines
   3.2. General information
   3.3. Removal and engine installation
   3.4. Replacement of support of the power unit
   + 3.5. Gear belt, pulleys, pulley of the mechanism of a tension and intermediate pulley
   3.6. A gear belt with the automatic mechanism of a tension
   3.7. Forward sealing ring of a camshaft
   3.8. Camshafts
   3.9. Installation of a head of the block of cylinders on the engine established in the car
   3.10. Installation of a head of the block of cylinders on the engine which has been removed from the car
   3.11. Repair of a head of the block of cylinders
   3.12. Hydraulic pushers of valves
   3.13. Replacement of a forward sealing ring of a cranked shaft
   3.14. Oil pallet
   3.15. Oil pump
   3.16. Oil radiator
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. A fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of fall of toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrosystems
+ 11. Transmission
+ 12. Mechanical transmission
+ 13. Automatic transmission
+ 14. Power shafts
+ 15. Brake system
+ 16. Suspension bracket
+ 17. Body
+ 18. Electric equipment
+ 19. Check of malfunctions


3.2. General information


Operations which are used for engine repair with two top camshafts (DOHC) are given in section 3. Subsection 3 is necessary for using together with section 2.

The block of cylinders and the details located in the block of cylinders of the DOHC engine generally are similar to the SOHC engine of 2,0 l. Difference is that pistons are attached to rods by piston fingers of floating type and the fixed lock rings.

Camshafts on DOHC engines are given from a cranked shaft by one gear belt. In each cylinder it is established on four valves (two inlet and two final) which are put in action from camshafts through hydraulic pushers. One camshaft is put in action inlet the valve, and another – final.

Models with DOHC engines have a separate oil radiator.

The distributor of ignition is put in action from a camshaft operating final valves.