Opel Vectra B

since 1995 of release

Repair and car operation



Vektr B. Opel
+ 1.1. Governing bodies and control devices
+ 2. Maintenance
- 3. Engines
   + 3.1. Repair of the SOCH engine established in the car
   + 3.2. Repair of the DOCH engine established in the car
   + 3.3. Repair of the diesel engine of 1,7 l established in the car
   + 3.4. Repair of the diesel engine of 2,0 l established in the car
   - 3.5. Major maintenance of engines
      3.5.1. Introduction
      + 3.5.2. Technical characteristics
      3.5.3. Removal and installation of the petrol engine together with a transmission
      3.5.4. Removal and installation of the diesel engine together with a transmission
      3.5.5. Engine repair
      3.5.6. Dismantling of a head of the block of cylinders
      3.5.7. Cleaning and survey of a head of the block of cylinders
      3.5.8. Assembly of a head of the block of cylinders
      3.5.9. Removal of pistons with rods
      3.5.10. Removal of a cranked shaft
      3.5.11. Block of cylinders of the engine
      3.5.12. Pistons and rods
      3.5.13. Cranked shaft
      3.5.14. Survey of radical and shatunny bearings
      3.5.15. Engine balance of assembly at major maintenance
      3.5.16. Installation of piston rings
      3.5.17. Choice of bearings
      3.5.18. Installation of a cranked shaft
      3.5.19. Pistons and rods, check of working gaps of shatunny bearings
      3.5.20. Check of a working gap of the bearing of the bottom head of a rod
      3.5.21. Installation of pistons with rods
      3.5.22. Engine start after major maintenance
+ 4. Heating, ventilation
+ 5. Fuel system
+ 6. Systems of start, ignition
+ 7. Transmission
+ 8. Brake system
+ 9. Running gear
+ 10. Body
+ 11. Electric equipment
+ 12. Main malfunctions





3.5.17. Choice of bearings

GENERAL INFORMATION

Marking of group of the sizes of a radical neck of the bearing of a cranked shaft of the diesel engine of 1,7 l

Place of drawing of marking of diameter of an opening of bearings of the diesel engine of 1,7 l

Diesel engine of 1,7 l

To a choice of a working gap of bearings apply 4 various loose leaves which are designated by a color label at an end face. Color of a label designates thickness of the loose leaf and consistently increases depending on color: green, brown, black or blue.

If it is necessary to replace the bearing loose leaf, at first check and make record of a label of the identification located on cranked shaft, adjacent to each radical neck of the bearing.

Write down the main markings of identification of the size of an opening of the bearing which is put on the bottom interfaced surface of a back part of the block of cylinders of the engine.

According to a code of an opening of the bearing and a code of a neck of a cranked shaft choose the new loose leaf of the radical bearing, using the following table. Codes of a cranked shaft are given on the left side, codes of openings of bearings in the top part. The type of the bearing gets out on crossing of two lines.
1
2
3
line
the black
the brown
the green
lines
the dark blue
the black
the brown

Other engines

Use as standard, and with the reduced size of radical bearings of a cranked shaft is possible. The demanded size of the bearing can be defined after measurement of a neck of a cranked shaft.

Check of a working gap of the bearing

PERFORMANCE ORDER
1. Clear a back part of the loose leaf and a place of its installation in the block of cylinders and covers of radical bearings.
2. Establish loose leaves on the places, thus a ledge on the loose leaf it should be combined with a groove on a cover.
3. One of methods which assumes micrometer existence for measurement of diameter of openings, consists in establishing covers of radical bearings together with the loose leaf on the block of cylinders and to screw them the demanded moment. Measure internal diameter of each collected pair of loose leaves of bearings. Measure diameter of each radical neck of a cranked shaft. Subtract from the measured diameter of the bearing the corresponding diameter of a radical neck of a cranked shaft.
4. The second (and more exact) a method consists in using a product known as for Plastigage. It is a round plastic core which is compressed between the loose leaf and a neck of a cranked shaft. After removal of a cover of the radical bearing the deformed plastic core is measured by a special template which is available in Plastigage set. Procedure for Plastigage use following.
5. On established in the block of cylinders loose leaves establish without greasing a cranked shaft. Necks of a cranked shaft and loose leaves should be absolutely pure and dry.
6. Cut off some slices of a plastic core of Plastigage (they should be slightly shorter, than width of the main bearings) and establish on each neck of a cranked shaft.
7. Establish covers with the bottom loose leaves and tighten bolts of fastening the demanded moment. In the course of gap measurement by the Plastigage method do not rotate a cranked shaft.
8. Unscrew a cover of fastening of the loose leaf, remove it and to the deformed plastic core put a large-scale ruler. Comparing width of the deformed plastic core with control width on a large-scale ruler, define gap size.
9. In end carefully clear Plastigage traces – a material from loose leaves and a cranked shaft.