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

9.11. Check and adjustment of turns of idling

GENERAL INFORMATION

For check and adjustment of turns of idling it is necessary to use the tachometer working at a photo cell. The tachometer has to react to light reflected by the aluminum foil pasted on a pulley of a bent shaft.

Measurement of a gap between the adjusting screw and a control lever of the fuel pump on the engine of 1,7 l

Adjustment of a gap

For adjustment of a gap weaken a lock-nut and rotate the adjusting screw.

PERFORMANCE ORDER

1. Warm up the engine up to the working temperature, check turns of idling and cool the engine.

2. On the cold engine check a gap between the screw of adjustment and a control lever of the fuel pump. At a temperature of cooling liquid of 20 °C the gap has to be ranging from 0,8 to 1,1 mm. For adjustment of a gap weaken a lock-nut and, rotating the adjusting screw, establish the required gap then establish a lock-nut (see rice. Measurement of a gap between the adjusting screw and a control lever of the fuel pump on the engine of 1,7 l, Adjustment of a gap).

3. Start the engine and check idling turns. If turns of idling differ from demanded, weaken a lock-nut and, rotating the adjusting screw, establish the required turns then tighten a lock-nut.

4. Warm up the engine and check idling turns. In the course of warming up of the engine the gap between the adjusting screw and a control lever of the fuel pump has to decrease gradually before full contact of the screw with the lever. Otherwise there is a damage to system of cold start of the engine, and it is necessary to make repair at a maintenance stage.