Peugeot 406

since 1996 release

Repair and operation of the car



Peugeot 406
+ 1. Maintenance instruction
+ 2. Maintenance
- 3. Engine
   + 3.1. Petrol engines
   + 3.2. Diesel engines
   - 3.3. Repair of the engine
      3.3.1. Technical data
      3.3.2. Removal and installation of the engine and transmission
      3.3.3. Removal and installation of engines with the automatic transmission
      3.3.4. Repair of the engine
      3.3.5. Removal and installation of a head of the block of cylinders
      3.3.6. Dismantling of a head of the block of cylinders
      3.3.7. Cleaning and survey of a head of the block of cylinders
      3.3.8. Assembly of a head of the block of cylinders
      3.3.9. Removal of pistons with rods
      3.3.10. Removal of the crankshaft
      3.3.11. Block of cylinders
      3.3.12. Pistons and rods
      3.3.13. Crankshaft
      3.3.14. Survey of radical and conrod bearings
      3.3.15. Engine balance of assembly at capital repairs
      3.3.16. Installation of piston rings
      - 3.3.17. Installation of the crankshaft and check of working gaps of radical bearings
         3.3.17.1. Choice of new bearings
         3.3.17.2. Check of a working gap of bearings
         3.3.17.3. Installation of the crankshaft
      + 3.3.18. Installation of pistons
      3.3.19. Start of the engine after capital repairs
+ 4. Cooling systems, heating and ventilation
+ 5. Fuel system
+ 6. System of ignition
+ 7. Coupling
+ 8. Transmissions
+ 9. Power shafts
+ 10. Brake system
+ 11. Suspension bracket and steering
+ 12. Body
+ 13. Electric equipment
+ 14. Main malfunctions


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3.3.17. Installation of the crankshaft and check of working gaps of radical bearings

3.3.17.1. Choice of new bearings

GENERAL INFORMATION

XU SERIES ENGINE

Plate arrangement on the block of cylinders of the XU engine at the choice of radical bearings

A. Shtrikhova a code (it is used by production of the engine)

B. Signs of designations

On some engines the top and lower halves of bearings had identical thickness.

On engines of later releases the working gap of bearings was considerably reduced and in order that this condition was satisfied, apply 4 various inserts which are designated by a color tag at an end face. Color of a tag designates insert thickness. The top insert on all bearings has the identical size, and the working gap is regulated by installation of the lower insert of the required thickness.

Engines 1.6 liters

Color of a tag
Thickness (mm)
Standard
Repair
Top insert
Yellow
1,856
2,006
Lower insert
Blue (Class) And
1,836
1,986
Black (Class) B
1,848
1,998
Green (Class) of C
1,859
2,009
Red (Class) of D
1,870
2,020

On later engines new inserts can be chosen, using signs on the block of cylinders. In the absence of tags inserts can be picked up only by measurement of a working gap. Tags on the block of cylinders are on the left side of the block, and a crankshaft tag – at a crankshaft crossing point end face. These tags can be used for the choice of an insert of the required thickness as follows.

On the crankshaft and the block of cylinders there are two lines of identification: shaped a code which is used by Peugeot by production, and a row from five designations. The first designation in the sequence belongs to the size of number of the first insert. The last designation in the sequence (which is followed by an arrow) treat the size of number of the fifth insert.

Define number of designation from a certain neck of the crankshaft and an opening of the bearing of the block of cylinders.

Nomogram of the choice of inserts

 

On the top axis of the nomogram note designation of the crankshaft and through this point draw a vertical line. On the left vertical axis of the nomogram note designation of the block of cylinders and through this point draw a horizontal line. The point of intersection of lines specifies the insert size for providing the required gap.

For example, the nomogram shows that the crankshaft specifies 6 and the block of cylinders indicates N, the point of intersection within red area defines that red (Class D) the most suitable for receiving the required gap.

Repeat this operation on the choice of inserts for other radical necks of the crankshaft.

DIESEL ENGINE OF THE XUD SERIES

On diesel engines the top and lower inserts have identical thickness.

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