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



3.11. Repair of a head of the block of cylinders

Dismantling

GENERAL INFORMATION

Removal of hydraulic pushers of valves
And – a flute arrangement for supply of oil in a hydraulic pusher.

PERFORMANCE ORDER
1. Remove a head of the block of cylinders from the engine and clear its external surface of dirt.
2. Remove a casing of the thermostat and the thermostat.
3. Remove from a head of the block of cylinders collectors.
4. Unscrew spark plugs and remove the ignition distributor.
5. Remove camshafts.
6. Using a rubber sucker, remove hydraulic pushers of valves. At all do not overturn a head of the block of cylinders for extraction of hydraulic pushers. Store гидравли chesky pushers in the container with engine oil in vertical situation. Thus the flute for supply of oil in a hydraulic pusher should be located from below (see drawing).
7. Remove yokes, blocks of axial pressure and hydraulic pushers from a head of the block of cylinders. Using the adaptation for compression of a spring of the valve, compress each spring and remove crackers from a valve end face. Remove the adaptation for compression of a spring and take a plate and a spring. Flat-nose pliers, being careful, take a maslootrazhatelny cap from a valve rod. Take the bottom plate of a spring.
8. When the spring of the valve is compressed and the cup of a spring does not act in film from crackers, it is necessary to strike with a hammer through wooden whetstone on a spring cup that will lead to release of crackers.
9. Take the valve via the combustion chamber. Each valve store in a separate plastic bag together with a plate of a spring, a spring, a nest of a spring and crackers for their further installation on the places.

Check

PERFORMANCE ORDER
1. Remove the remains of old laying from a head of the block of cylinders.
2. Clear a deposit from combustion chambers, then wash up a head in the corresponding solvent.
3. Clear of carbonaceous deposits of the valve, it is possible even with application of a wire brush.
4. Carefully examine a head of the block of cylinders on existence of cracks and other damages. In the presence of cracks the head is subject to replacement.
5. Using a metal ruler and щуп, check planeness of an interfaced surface of a head of the block of cylinders. At not planeness more than 0,1 mm it is necessary перешлифовать a head, thus its height should correspond to requirements.
6. Check a condition of saddles of valves. If they are burned, worn-out or have defects, it is necessary to replace them. If wear of a saddle of the valve is insignificant, they are necessary for grinding in. Check directing plugs of valves on wear, inserting into them a core of the valve and moving it aside. Moving should be insignificant. If moving is excessive, take the valve and measure diameter of a core of the valve. If necessary replace the valve. If the core of the valve is not worn-out, means, the directing plug which it is necessary to replace is worn-out. Replacement of directing plugs of valves should be made at service station.
7. If saddles of valves have to be перешлифованы, this operation is necessary for executing after installation of new directing valves.

Assembly

PERFORMANCE ORDER
1. Grease cores of valves with engine oil and insert them on the places. The valve establish on those places where they were ground in.
2. Establish the bottom cup of a spring.
3. In a set of new maslootrazhatelny caps there is an adjusting plug which is established on a core of the valve and protects working edges of maslootrazhatelny caps at them установ ке. Establish the adjusting plug on a valve core, lower маслоотража a telny cap in fresh engine oil and establish it on a valve core into place, being careful not to damage it working edges. For installation of maslootrazhatelny caps use a special metal opravka.
4. Establish a klapanny spring and the top cup of a spring.
5. The special adaptation compress a klapanny spring and establish crackers in dredging of a core of the valve and grease them. Remove the adaptation for spring compression. Repeat this operation on other valves.
6. With a hammer through wooden whetstone knock on an end face of a core of the valve in order that all elements of the valve were accurately established on the places.
7. Establish hydraulic pushers of valves in a head of the block of cylinders on the same places where they faced removal. Before installation of pushers grease nests in a head of the block of cylinders with pure engine oil. At installation new hydraulic толкате pour lower them in the container with pure engine oil and several times manually compress them to fill them with oil.
8. Establish camshafts.
9. Screw in spark plugs and establish the ignition distributor.
10. Establish collectors, the thermostat and a thermostat casing.
11. Establish a head of the block of cylinders.