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


2.31. Check of pistons and rods


Removal of a piston ring from the piston

Removal of the central part of a maslosjemny ring from the piston

The correct arrangement of piston rings on the piston

Gap measurement in the lock of a piston ring

1. Before check of pistons with rods remove from pistons piston rings and carefully clear pistons.
2. For removal of piston rings unclench a ring and insert under a ring evenly on a circle two or three old edges щупа and on them shift a ring from the piston. Be careful, do not scratch the piston the ring ends. Rings very fragile also can burst, if them to unclench very strongly. Working edges of piston rings very sharp, therefore address with them very carefully not to be cut. Hold each set of rings together with pistons for repeated installation them on the places.
3. Clear all traces of a deposit in the top part of the piston.
4. Remove a deposit from flutes under piston rings in the piston, using an old piston ring.
5. After removal of a raid clear the piston with a rod the corresponding solvent and wipe dry.
6. Carefully examine each piston on existence of cracks round a skirt and openings under a piston finger.
7. Check a piston condition on wear existence on a piston skirt, existence of openings in a piston head, and also existence прожога in the top part of the piston.
8. Traces of dot corrosion on the piston specify that cooling liquid got to the chamber of combustion. It is necessary to find the reason of hit of liquid in the chamber of combustion and to eliminate it.
9. Measure diameter of the piston.
10. Define a piston gap in the cylinder for what from diameter of the cylinder take away diameter of the piston and divide into two.
11. Check each rod on wear and existence of cracks, and also form distortion.
12. On all petrol engines piston fingers are pressed in the top head of a rod therefore replacement of rods is necessary for making in специализиро a bathing workshop.
13. Check, that the piston easy and freely turned on a piston finger.
14. Establish the top sealing ring in the first cylinder and the bottom of the piston push it in the cylinder to the cylinder basis.

Top and average condense telny rings are various. External surface of an average ring konusny.

15. Using щуп, measure a gap in the lock of a piston ring (see fig. Gap measurement in the lock of a piston ring).
16. Repeat measurement process with a ring established in the top part of the cylinder and compare results of measurement to specifications.
17. If in the ring lock too small, it it is necessary to increase a gap, soshlifovyvy ring end faces.
18. If a gap in the lock of a ring too big, check correctness соответ stviye of rings to your engine.
19. Repeat check operation for each ring in the first cylinder, and then for rings in other cylinders.
20. Establish piston rings on pistons in the same way, as well as at removal.
21. After installation of piston rings on pistons check ease of moving of piston rings in flutes of pistons.
22. Establish locks of a maslosjemny ring so that the lock of the bottom ring was displaced on 25-50 mm to the right from the lock of the central part, and the lock of the top ring was displaced on the same distance to the left from the lock of the central part.
23. Establish the bottom kompressionny ring on the piston, thus keep in mind that the ring in section has a konusny form. Establish a ring a label of TORAHS up.
24. Establish the top kompressionny ring, thus the lock of a ring it should be turned on 180 ° in relation to the bottom kompressionny ring. If the konusny ring is established, establish it in smaller diameter up.
25. At installation of new piston rings cylinders it is necessary отхонинговать.