Opel Vectra A

since 1988-1995 release

Repair and operation of the car



Vektr's Opel And
+ 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. Check of a compression
   4.5. Top Dead Point (TDP) of the piston of the first cylinder
   4.6. Cover of a head of the block of cylinders
   4.7. Pulley of a bent shaft
   4.8. Casings of a gear belt
   4.9. Replacement of a gear belt
   4.10. Check and installation of phases of gas distribution
   + 4.11. Mechanism of a tension of a gear belt and pulleys
   4.12. Replacement of a sealing ring of the 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 heater
   - 4.20. Pistons with rods
      4.20.1. Removal
      4.20.2. Check
      4.20.3. Installation
      4.20.4. Check of working gaps of conrod bearings
      4.20.5. Installation of pistons with rods
   4.21. Flywheel
   4.22. Replacement of sealing rings of a bent shaft
   4.23. Replacement of support of the power unit
   4.24. Recommendations about removal of the engine
   4.25. Removal and installation of the engine
   4.26. Repair of the engine
   4.27. Start of the engine after capital repairs
+ 5. Cooling system
+ 6. Fuel system
+ 7. The fuel and exhaust system of models with system of injection of fuel
+ 8. Exhaust system and system of decrease in toxicity of exhaust gases
+ 9. Fuel systems of the diesel engine
+ 10. Engine electrical systems
+ 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
24bec775



4.20.2. Check

GENERAL INFORMATION

Arrangement of an adjusting tag of the piston on the diesel engine

Tag of identification of provision of a rod

Installation of a piston finger

Installation of a lock ring of a piston finger

PERFORMANCE ORDER
1. Before check of pistons with rods remove piston rings from pistons and carefully clear pistons.
2. For removal of piston rings from pistons unclench a ring and insert under a ring evenly on a circle two or three old edges of the probe and on them shift a ring from the piston. Be careful, do not scratch the piston the ends of a ring. Rings very fragile can also burst if to unclench them very strongly. Working edges of piston rings very sharp therefore handle with them very with care not to be cut. You hold each set of rings together with pistons for repeated installation them on the places.
3. Clear all traces of a deposit from 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 around a skirt and openings under a piston finger.
7. Check wear on a piston skirt, an opening in a piston head, and also burned in the top part of the piston.
8. Traces of pointed corrosion on the piston specify that cooling liquid got to the combustion chamber. It is necessary to find the reason of hit of liquid in the combustion chamber 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 for wear and existence of cracks, and also distortion of a form.
12. Piston fingers are established on the sliding landing and recorded in the piston by two lock rings. On these engines pistons and rods can be divided as follows.
13. Using an edge of the thin screw-driver, remove a lock ring from the piston and a hand squeeze out a piston finger. At repeated installation of a piston finger use only new lock rings.
14. Check a piston finger and the bearing of the top head of a rod for wear.
15. Rods usually do not demand replacement if before it there was no jamming of the engine.
16. Collect the piston and a rod so that the adjusting tag on a head of the piston was from the same party, as a tag on a rod (see rice. An arrangement of an adjusting tag of the piston on the diesel engine).
17. Grease a piston finger and implant it into the piston and the top head of a rod. Check that the piston easily and freely turned on a piston finger then record a piston finger new lock rings. Check that each lock ring was correctly located in a piston flute (see rice. Tag of identification of provision of a rod).