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



3.9. Installation of a head of the block of cylinders on the engine established in the car

GENERAL INFORMATION

Prevention

Removal of a head of the block of cylinders make on the cold engine. At installation it is necessary to use new bolts of fastening and new laying of a head of the block of cylinders. At установ ке cases of a camshaft it is necessary to use hermetic. The specified moments of a tightening can be applied only to later bolts. When using bolts of early types specify the tightening moments at the dealer of Opel.


Removal

Sequence of unscrewing of bolts of fastening of a head of the block of cylinders on engines of 20 XEJ and С20 HE

Sequence of unscrewing of bolts of fastening of a head of the block of cylinders on the XEV X20 engine

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator.
2. Merge cooling liquid from cooling system.
3. Disconnect a reception exhaust pipe from a final collector.
4. The head of the block of cylinders can be removed from the engine together with collectors, or collectors can be disconnected from a head of the block of cylinders before its removal. In case on an inlet collector it will not be made any works, it can be unscrewed from a head of the block of cylinders and to fix, thus it is not required to disconnect the corresponding hoses, pipes and electric sockets.
5. If the head of the block of cylinders acts in film together with an inlet collector, disconnect from inlet коллекто ра hoses, pipes and electric sockets. Unscrew an arm of fastening of an inlet collector. Weaken bolts of fastening of the generator, then unscrew the top fastening of the generator from an inlet collector.
6. Disconnect the electric socket from a measuring instrument of a stream of air and a ventilation hose from the heater block on the throttle case. Disconnect a branch pipe of the air filter and remove knot of a measuring instrument of a stream of the air / block of a heater from the throttle case.
7. Disconnect an accelerator cable from the butterfly valve lever, then unscrew an arm of fastening of a cover of a cable of an accelerator and remove it from an inlet collector.
8. Unscrew two nuts and disconnect from two parties of the fuel highway of the tire of grounding.
9. Disconnect the electric socket from the switch of provision of a butterfly valve.
10. Remove a casing of a plait of wires, then disconnect electric sockets from fuel nozzles, previously compressing fixing brackets. Move a plait of wires with a casing aside.
11. Disconnect two hoses of ventilation of a case from a back part of a cover of a head of the block of cylinders.
12. Unscrew an arm from a collector.
13. Check that all hoses, pipes and electric sockets are disconnected from an inlet collector, then unscrew nuts of fastening and remove an inlet collector from a head of the block of cylinders.
14. Remove laying inlet коллекто ра from a head of the block of cylinders.
15. Remove a gear belt, pulleys of a camshaft, the mechanism of a tension and an intermediate pulley.
16. Unscrew top and averages are resistant for screws of fastening of an external casing of a gear belt. Pay attention that the top rack is unscrewed from a head of the block of cylinders, and the average rack is attached by a bolt.
17. Unscrew two top bolts of fastening of a back casing of a gear belt to a head of the block of cylinders.
18. Uncover the distributor of ignition and high-voltage wires.
19. Disconnect the electric socket from the ignition distributor.
20. Disconnect a hose of supply of cooling liquid from the left end face of a head of the block of cylinders.
21. Unscrew a bolt, a fixing arm of a pipe of ventilation of a case to an end face of a head of the block of cylinders.
22. Disconnect the top hose of a radiator from a thermostat casing. Then disconnect electric sockets from the sensor of the index of temperature and the sensor of temperature of cooling liquid which are located in a thermostat casing.
23. Check that all hoses, pipes and electric sockets are disconnected from a head of the block of cylinders.
24. On the XEV X20 model remove распреде a litelny shaft.
25. Using a face key, in the sequence shown on fig. Sequence of unscrewing of bolts of fastening of a head of the block of cylinders on engines of 20 XEJ and С20 HE, Sequence of unscrewing of bolts of fastening of a head of the block of cylinders on the XEV X20 engine, unscrew bolts of fastening of a head of the block of cylinders first of all on a turn quarter, then on a half of a turn and, at last, unscrew them completely.
26. Remove a head of the block of cylinders.
27. Remove laying of a head of the block of cylinders. At installation it is necessary to use new laying.

Preparation of a head for installation

PERFORMANCE ORDER
1. Interfaced surfaces of a head and the block of cylinders should be absolutely pure. For their cleaning use a firm plastic or wooden scraper. When cleaning be careful, as the aluminum alloy is very easy for damaging. Check that the deposit did not get to oil and water canals. It is especially important for greasing system as the deposit can block supply of oil to engine components. If necessary clear channels.
2. Check interfaced surfaces of a head and the block of cylinders on existence of notches, deep scratches and other damages. If defects small, they can be removed with machining. But at major defects of a detail are subject to replacement.
3. Using a metal ruler and щуп, check planeness of interfaced surfaces.
4. Clear openings under bolts in the block. Bolt screwing up in the opening filled with oil can break off the block because of hydraulic pressure.
5. Replace bolts of fastening of a head of the block of cylinders irrespective of their condition.

Installation

Sequence of a tightening of bolts of fastening of a head of the block of cylinders on engines of 20 XEJ and С20 XE

Sequence of a tightening of bolts of fastening of a head of the block of cylinders on the XEV X20 engine

Tightening of bolts of fastening of a head of the block of cylinders the demanded moment

PERFORMANCE ORDER
1. Check that new laying of a head of the block of cylinders has the same type, as the original and establish laying so that marking of OBEN or TORAHS was directed up and settled down from a gear belt.
2. Establish a head of the block of cylinders on directing pins.
3. Temporarily establish pulleys of a cranked shaft and camshafts and check that adjusting labels of pulleys coincide with indexes.
4. Establish new bolts of fastening of a head of the block of cylinders and tighten them at this stage by hand.
5. Gradually and consistently tighten all bolts of fastening of a head of the block of cylinders the demanded moment in some stages (see fig. Sequence of a tightening of bolts of fastening of a head of the block of cylinders on engines of 20 XEJ and С20 XE, Sequence of a tightening of bolts of fastening of a head of the block of cylinders on the XEV X20 engine, the Tightening of bolts of fastening of a head of the block of cylinders the demanded moment).
6. Further installation is made in sequence, return to removal taking into account the next moments.
7. Establish the mechanism of a tension of a gear belt, an intermediate pulley, pulleys of camshafts and a new gear belt. Adjust a tension of a gear belt.
8. Establish an inlet collector with new laying on a head of the block of cylinders.
9. Connect to a final collector a reception exhaust pipe with new laying.
10. Establish the top fastening генерато ра on an inlet collector, then establish a belt of a drive of the generator and adjust its tension.
11. Fill in cooling liquid in cooling system.
12. Check that all hoses, pipes and electric sockets are correctly connected.
13. Start the engine and check it on existence of leaks.