Opel Vectra A

since 1988-1995 of release

Repair and car operation



Vektr A. Opel
+ 1. Maintenance instruction
+ 1.1 Maintenance
- 2. Engine
   2.2. General information
   2.3. System of ventilation of a case
   2.4. Compression check
   2.5. Repair operations on the engine established in the car
   2.6. The repair operations demanding removal of the engine
   2.7. Recommendations about engine removal
   + 2.8. Removal and engine installation without a transmission
   + 2.9. Removal and engine installation together with a transmission
   2.10. Replacement of support of the engine and transmission
   2.11. Engine repair
   + 2.12. A gear belt and pulleys (without the automatic mechanism of a tension)
   2.13. A gear belt and the tension mechanism (l models 1,4 and 1,6 except С16 NZ2)
   2.14. An opening in a back casing of a gear belt on l models 1,4 and 1,6
   2.15. Gear belt and tension mechanism (l NZ2 1,8 and 2,0 C16 model)
   2.16. Forward sealing ring of a camshaft
   2.17. Back sealing ring of a camshaft
   2.18. Camshaft and camshaft case
   + 2.19. Removal and installation of a head of the block of cylinders on the engine in the car
   2.20. Removal and installation of a head of the block of cylinders on the removed engine
   + 2.21. Repair of a head of the block of cylinders
   2.22. Cleaning and survey of a head of the block of cylinders
   2.23. Hydraulic pushers of valves
   2.24. Flywheel
   2.25. Replacement of a forward sealing ring of a cranked shaft
   2.26. Replacement of a back sealing ring of a cranked shaft
   2.27. Oil pallet
   2.28. Oil pump
   2.29. Repair of the oil pump
   2.30. Removal and installation of pistons and rods
   2.31. Check of pistons and rods
   + 2.32. Removal and installation of a cranked shaft
   2.33. Check of a cranked shaft
   2.34. Survey and gap check in radical and shatunny bearings
   2.35. Check of a working gap of the bearing
   2.36. Check of the block of cylinders of the engine
   2.37. Engine start after major maintenance
+ 3. Repair of DOHC engines
+ 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



2.34. Survey and gap check in radical and shatunny bearings

GENERAL INFORMATION

Even thus that radical and shatunny bearings are subject to replacement at major maintenance of the engine, they are necessary for examining carefully as they can give valuable information concerning an engine condition.

Failure of the bearing can occur because of a lack of greasing, presence of dirt or other alien particles, an engine or corrosion overload. Irrespective of the reason of failure of the bearing the reason which has caused an exit of the bearing out of operation before the engine should be eliminated will repeatedly gather.

At survey of bearings remove them and spread out in the same order as they were established on the engine. It will allow to define the corresponding neck of a cranked shaft and will facilitate search of malfunctions.

Alien particles can get to the engine various ways. Metal particles can is in engine oil as a result of normal wear of the engine. Small particles together with engine oil can get to bearings and easily take root into a soft material of the bearing. Big particles, getting to the bearing, will scratch the bearing or a neck of a cranked shaft. The best prevention of failure of the bearing for this reason, carefully clear all internal surfaces of the engine and keep them clean at engine assembly. Also frequent and regular replacement of oil with the filter is recommended.

Insufficient greasing of necks of a cranked shaft can be caused by many different reasons, such as high temperature of oil, an overload of the engine and leakage of oil.

The manner of driving by the car also influences durability of the bearing. Ny zaslonka completely opened a throttle at low turns of the engine creates high load of bearings and expression from a zone of contact of an oil film. These loadings lead to emergence of cracks in a working part of the bearing that weakens the bearing and can lead to a separation of an antifrictional layer from a steel basis.

Movement on short distances leads to corrosion of bearings as a result the engine does not leave on the stabilized working temperature at which water vapor and corrosion gases are removed. These pairs and gases, being condensed in engine oil, form acid and a deposit. Acid together with engine oil gets to bearings and corrosion of bearings begins.

The wrong selection of bearings at engine assembly also leads to failure of bearings. The bearings established with a preliminary tightness, leave an insufficient working gap of the bearing therefore decreases or there is no butter layer for greasing.