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
- 4. Repair of the diesel engine
   4.2. General information
   4.3. The repair which is not demanding removal of the engine
   4.4. Compression check
   4.5. Top dead point (VMT) of the piston of the first cylinder
   4.6. Cover of a head of the block of cylinders
   4.7. Pulley of a cranked shaft
   4.8. Casings of a gear belt
   4.9. Replacement of a gear belt
   4.10. Check and installation of phases of a gazoraspredeleniye
   + 4.11. Mechanism of a tension of a gear belt and pulleys
   4.12. Replacement of a sealing ring of a camshaft
   4.13. Check and adjustment of gaps of valves
   4.14. Camshaft and pushers
   4.15. Head of the block of cylinders
   4.16. Oil pallet
   4.17. Oil pump
   4.18. Replacement of a sealing ring of the oil pump
   4.19. Oil radiator
   + 4.20. Pistons with rods
   4.21. Flywheel
   4.22. Replacement of sealing rings of a cranked shaft
   4.23. Replacement of support of the power unit
   4.24. Recommendations about engine removal
   4.25. Removal and engine installation
   4.26. Engine repair
   4.27. Engine start after major maintenance
+ 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



4.5. Top dead point (VMT) of the piston of the first cylinder

GENERAL INFORMATION

The top dead point of the piston is a point through which passes each piston at a provorachivaniye of a cranked shaft. Each piston reaches situation VMT at the end of a compression step, and then again at the end of an exhaust step. For the purpose of installation of the mechanism of a gozoraspredeleniye of the engine VMT of the piston of the first cylinder in a compression step is used. The cylinder No. 1 is from a gear belt. The cranked shaft of the engine rotates clockwise if to look on the right side of the car.

Combination of a label of a pulley of a cranked shaft with the index


Fixing of a pulley of a camshaft by bolt М6

Fixing of a pulley of the fuel pump by bolt М8

PERFORMANCE ORDER
1. Remove a negative wire from the accumulator. Lift a forward part of the car and fix on supports. Remove the right forward wheel.
2. Remove the top casing of a gear belt.
3. Turn the engine a wrench for a pulley of a cranked shaft clockwise. Rotate a cranked shaft until the label on a pulley of a cranked shaft will not be combined with the index on the basis of the oil pump (see fig. Combination of a label of a pulley of a cranked shaft with the index).
4. To define that the first or fourth piston is in the top dead point, check the provision of adjusting openings in pulleys of the fuel pump and a camshaft. When the piston of the first cylinder is in the top dead point in the compression step, both openings of a pulley will be combined with openings under the screw in a head of the block of cylinders.
5. At installation of the piston of the first cylinder in VMT if it is necessary, it is possible to fix pulleys of the fuel pump or a camshaft for what screw in bolt М6 through a camshaft pulley in a head of the block of cylinders and bolt М8 through a pulley of the fuel pump in the block of cylinders (see fig. Fixing of a pulley of a camshaft by bolt М6).