Opel Omega

since 1993-1999 release

Repair and operation of the car


Opel Omega
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Repair of engines
   + 3.1. SOHC engines of 2,0 liters
   + 3.2. DOHC engines of 2,0 liters
   + 3.3. 2,5 and 3,0 liters engines
   + 3.4. Partition of all petrol engines
   - 3.5. 2,0 liters diesel engine
      3.5.1. Technical characteristics
      3.5.2. Repair operations on the engine installed in the car
      3.5.3. Check of pressure of compression 3_5_4.htm
      3.5.5. Gas distribution mechanism
      3.5.6. Cover of a head of the block of cylinders
      3.5.7. Pulley of a bent shaft
      3.5.8. Chain cover
      3.5.9. Natyazhiteli of a chain
      3.5.10. Chains and asterisks
      3.5.11. Camshafts and pushers
      3.5.12. Head of the block of cylinders
      3.5.13. Oil pallet
      3.5.14. Oil pump
      3.5.15. Oil heater
      3.5.16. Sealing rings of a bent shaft
      3.5.17. Flywheel
      3.5.18. Suspension brackets of the power unit
      + 3.5.19. Capital repairs of the 2,0 liters diesel engine
   + 3.6. 2,5 liters diesel six-cylinder engine
+ 4. Heating system and ventilation
+ 5. Fuel, exhaust systems
+ 6. System of start of the engine
+ 7. System of ignition
+ 8. Coupling
+ 9. Transmissions
+ 10. Main transfer, half shafts
+ 11. Brake system
+ 12. Suspension bracket and steering
+ 13. Body
+ 14. Body electric equipment



3.5.11. Camshafts and pushers
GENERAL INFORMATION
Prevention

At installation of an asterisk of the camshaft and the top guide it is necessary to use new bolts.

Removal

PERFORMANCE ORDER
1. Remove a weight wire from the accumulator and a cover of a head of the block of cylinders.
2. Remove the vacuum pump of the brake system.
3. Install the piston of the first cylinder in the top dead point in a step of compression and record a bent shaft.
4. For improvement of access to a cover of an asterisk of the fuel pump perform the following operations:
      – remove a casing of the air filter and a forward exhaust pipe;
      – take off an auxiliary driving belt;
      – unscrew a fastening nut from a frame of a suspension bracket of the power unit and raise the engine so not to deform hoses and pipes.
5. Remove the top natyazhitel of a chain.
6. Remove the mechanism of a tension of a driving belt.
7. Unscrew bolts and uncover an asterisk of the fuel pump.
8. Put combination tags between the top chain and asterisks, and also between an asterisk of the camshaft and the camshaft.
9. Unscrew bolts and remove the top guide of a chain.
10. Before unscrewing of bolts of fastening of the top guide of a chain (are specified by shooters) they need to be heated to soften the structure interfering unscrewing of bolts.
11. Using a wrench, fix the camshaft from a provorachivaniye and unscrew bolts of fastening of an asterisk of the camshaft. Before unscrewing of a bolt take a pin of blocking of a bent shaft and after unscrewing of a bolt establish a pin into place.
12. Remove a chain from an asterisk of the camshaft and take an asterisk from the engine.
13. At removal of an asterisk under a chain install the screw-driver or a steel core to prevent falling of a chain in a head of the block of cylinders.
14. Pay attention to identification tags (are specified by shooters) on covers of bearings of the camshaft. Covers are numbered from 1 to 5 from a forward part of the engine.
15. Working on a spiral outside inside, weaken covers of bearings of the camshaft on a half of a turn for each pass before full unscrewing of bolts. It is necessary for gradual and uniform removal of pressure of valvate springs. Uncover camshaft bearings.
16. Remove levers from the top part of a head of the block of cylinders and you store them in the separate numbered packages.
17. For removal of hydraulic pushers remove a cross pipe of supply of fuel and, using a rubber sucker or a magnet, take hydraulic pushers and place them in the corresponding container.

Check
PERFORMANCE ORDER
1. Check the working surfaces of bearings of the camshaft and contours of cams for wear signs. With any wear the camshaft is subject to replacement.
2. Check an axial side play of a bent shaft. If the axial side play exceeds admissible limits, the camshaft is subject to replacement.
3. Check a condition of hydraulic pushers and nests for pushers in a head of the block of cylinders.

Installation

PERFORMANCE ORDER
1. Oil hydraulic pushers pure engine and establish them on the places. Establish a cross pipe of an injector.
2. Install camshaft levers in a head of the block of cylinders by tags (A) to a cross pipe of supply of fuel (B).
3. Oil camshaft levers pure engine and install the camshaft in a head of the block of cylinders. At the same time cams of the first cylinder (are specified by shooters in the drawing at the left) have to be directed up, and the groove on the left end of the camshaft (it is specified by an arrow in the drawing on the right) has to be parallel to a surface of a head of the block of cylinders.
4. Check that the interfaced surfaces of covers of the bearing and a head of the block of cylinders, pure and dry and grease necks of the camshaft and cams with pure engine oil.
5. Apply a thin film of sealant on the top surface of a head of the block of cylinders interfaced to the left cover of the bearing of the camshaft and establish a cover. Places of putting sealant are specified by shooters.
6. Establish covers of bearings of the camshaft according to identification tags.
7. Tighten bolts of fastening of covers of bearings gradually and in a certain sequence, turning each bolt on a half of a turn for one pass until each cover does not concern a head of the block of cylinders. Then in the same sequence tighten bolts in several stages the required moment. Gradual and uniform tightening of bolts is necessary for uniform compression of springs of the valve.
8. Using earlier put tags, check that the top chain is correctly established on an asterisk of the fuel pump and dress a chain on a camshaft asterisk. Establish an asterisk on the end of the camshaft and establish a new bolt of fastening.
9. Establish the top guide of a chain.
10. Using blocking pins, check correctness of installation of the mechanism of gas distribution. Remove blocking pins.
Fix the camshaft from a provorachivaniye and tighten a bolt of fastening of an asterisk of the camshaft in several stages.
11. Tighten a bolt of fastening of the camshaft on the required corner.
12. Establish the top natyazhitel of a chain.
13. Check that the interfaced surfaces of a cover of an asterisk of the fuel pump and a cover of a chain pure and dry. Establish a cover of an asterisk of the fuel pump with new laying or on a thin layer of sealant and tighten bolts of fastening of a cover the required moment.
14. Install the mechanism of a tension of a driving belt.
15. Establish the right support of the power unit and lower the engine.
16. Establish a cover of a head of the block of cylinders.
17. Establish a forward exhaust pipe, a casing of the air filter and the sensor of a bent shaft.
18. Install the vacuum pump of the brake system.