Opel Vectra A

since 1988-1995 release

Repair and operation of the car

Vektr's Opel And
+ 1. Maintenance instruction
+ 1.1 Maintenance
+ 2. Engine
+ 3. Repair of DOHC engines
+ 4. Repair of the diesel engine
+ 5. Cooling system
+ 6. Fuel system
+ 7. The fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of decrease in toxicity of exhaust gases
- 9. Fuel systems of the diesel engine
   9.2. General information
   9.3. Case of the air filter
   9.4. Accelerator pedal
   9.5. Fuel level sensor
   9.6. Fuel tank
   9.7. Heater of the fuel filter
   9.8. Discharge of water from the fuel filter
   9.9. Filling and pumping of fuel system
   9.10. Check and adjustment of the maximum turns
   9.11. Check and adjustment of turns of idling
   9.12. Electromagnetic valve of a stop of the engine
   9.13. Fuel pump of high pressure
   9.14. Check and adjustment of the moment of injection of fuel
   9.15. Fuel nozzles
   9.16. Turbocharger
   9.17. Heat exchanger
   9.18. Inlet collector
   9.19. Final collector
+ 10. Engine electrical systems
+ 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


9.2. General information


The fuel system consists of the car of the fuel tank, the fuel filter installed under a back part with a separator of water, the fuel pump of high pressure, fuel nozzles and pipelines. Before receipt in the filter fuel heats up электричес Kim a heater which is attached to the filter case.

Supply of fuel from the fuel filter to the fuel pump of high pressure is provided with the pumping-up bladed pump located in the fuel pump of high pressure. Excess fuel greases the fuel pump of high pressure and comes back to the fuel tank.

The drive of the fuel pump is carried out by a gear belt. Speed of rotation of the fuel pump is twice less than the speed of rotation of a bent shaft.

The amount of fuel is run by the centrifugal regulator which reacts to the provision of a pedal of management of supply of fuel and frequency of rotation of a bent shaft. The regulator is connected with the measurement valve which increases or reduces amount of the fuel delivered for one course of the pump.

The moment of injection of fuel changes automatically, depending on engine turns, the mechanism which turns a plate of a cam or a ring.

Fuel nozzles spray fuel in the vortex cameras located in a head of the block of cylinders. Fuel nozzles have to open and be closed with strictly certain pressure. The needle of a fuel nozzle is greased with fuel which collects about a spring and goes on a returnable hose to the fuel pump.

For start of the cold engine glow plugs which heat vortex cameras are used. The thermostatic capsule on the fuel pump increases turns of idling of the cold engine.

The electromagnetic valve of a stop of the engine blocks supply of fuel to a rotor of the fuel pump at switching off of ignition.

The turbocharger is established to increase engine capacity. At the same time it lifts air pressure in an inlet collector above atmospheric.

Service of the fuel pump and nozzles are very difficult. Therefore it needs to be made at service station. For long and trouble-free operation of the fuel pump and nozzles it is necessary to exclude hit in fuel system of dirt and water.


The turbocharger works at extremely high speeds and temperatures. Do not use a turbocharger at the removed any part or a hose. The foreign particles getting on the rotating blades can damage a turbocharger.

Do not increase engine turns at once after start, especially on the cold engine. It is necessary to wait at least several seconds for ensuring normal circulation of oil.

Give the chance to the engine to work in the idling mode within several minutes before switching off after operation of the engine on high turns.

For lubricant of the engine use only oil of the recommended quality.