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
      + 3.3.18. 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

3.3.16. Installation of piston rings


Arrangement of piston rings on the piston

1. Oil scraper ring

2. Average sealing ring

3. Top sealing ring

Before installation of new piston rings check a gap in the ring lock.

1. Arrange pistons and piston rings according to cylinders in which they will work.
2. Install the top sealing ring in the first cylinder and the bottom of the piston push it in the cylinder to the cylinder basis.


The top and average sealing rings are various, an external surface of an average ring conical.

3. Using the probe, measure a gap in the ring lock.
4. Repeat process of measurement with the ring established in the top part of the cylinder, and compare results of measurement to specifications (see subsection 3.3).
5. If a gap too small, it it is necessary to increase, soshlifovyvy ring end faces.
6. If a gap in the ring lock too big, check correctness of compliance of rings to the engine.
7. Repeat operation of check for each ring in the first cylinder and then for rings in other cylinders.
8. Install piston rings on pistons in the same way, as well as at removal. At assembly of an oil scraper ring at first insert a spring and from above on a spring establish a ring so that the lock of a ring was from the opposite side from the spring lock. Check that the average sealing ring is established by marking (a tag paint or the word "TOP") up (see rice. An arrangement of piston rings on the piston). Establish sealing rings so that their locks were displaced concerning the lock of an oil scraper ring on 120 ° in different directions. Do not mix the top and average sealing rings since they have various profiles.