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



3.8. Camshafts

GENERAL INFORMATION

Prevention

At installation of camshafts use a new gear belt.


Arrangement of a label of orientation on a cover of the bearing of a camshaft

Arrangement of nuts of fastening of a back cover of the camshaft operating final valves

Removal

PERFORMANCE ORDER
1. Remove a gear belt and pulleys of camshafts.
2. At removal of the camshaft operating final valves, unscrew two bolts and remove распреде a litel of ignition from an end face of a head of the block of cylinders.
3. Check that on covers of bearings of a camshaft there are labels, and at their absence, using a punch, put labels on covers and the top part of a head of the block of cylinders. Before removal note an arrangement of covers of bearings as they should be established in the same situation, as well as before removal (see fig. An arrangement of a label of orientation on a cover of the bearing of a camshaft).
4. Working on a spiral outside inside, weaken covers of bearings distribute a telny shaft on a turn half for each pass before complete unscrewing of bolts. It is necessary for gradual and uniform removal of pressure of klapanny springs. Pay attention that the cover of the back bearing of the camshaft operating final valve ми also supports the distributor of ignition and fastens four nuts (see fig. An arrangement of nuts of fastening of a back cover of the camshaft operating final valves).
5. Remove covers of bearings распреде a litelny shaft and remove a camshaft from a head of the block of cylinders.
6. Similarly remove the second camshaft.

Check

PERFORMANCE ORDER
1. Check working surfaces of bearings of camshafts and contours of cams of camshafts on wear. In the presence of any wear replace a camshaft. If camshaft bearings are worn-out, it is necessary to replace a head of the block of cylinders.
2. Check a condition of workers поверхнос ty hydraulic pushers which contact with cams distribute a telny shaft.

Installation

PERFORMANCE ORDER
1. Apply a thin film greasings on the basis of a molybdenum disulfide on contact surfaces of hydraulic pushers of valves and camshafts.
2. Put on interfaced surfaces of forward and back covers of bearings of camshafts a thin layer of hermetic and establish covers in a head of the block of cylinders.
3. Tighten nuts of fastening of covers of bearings of camshafts by hand, then on a spiral from the center to edge, tighten fastening nuts in a certain sequence, turning each nut on a turn half for one pass until each cover will not concern a head of the block of cylinders. Then in the same sequence tighten nuts the demanded moment in some stages.
4. Weaken a bolt of fastening of a pulley механиз ма tension and move the mechanism lever so that the index was combined with an emphasis. For fixing of the mechanism of a tension in this situation screw up a fastening bolt.
5. Similarly establish the second camshaft.
6. Establish the ignition distributor. Establish pulleys of the camshafts, a new gear belt and adjust its tension.