Mercedes S-Class W-140

1991-1999 of release

Repair and car operation



Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
- Engine
   Compression check in engine cylinders
   Engine check by means of the vacuum gage
   Belt of a streaming drive of auxiliary units
   - 6-cylinder petrol engines (M104.944 and M104.990/994)
      Cover of a head of the block of cylinders - installation details
      Removal and installation of the inlet pipeline with the resonator (except the engine 104.990)
      Final collector (except the engine M 104.990) - installation details
      Removal and installation of a head of the block of cylinders
      Removal and installation of a cover of a chain of a drive of GRM
      GRM drive - the general information, service of components
      Asterisk of a cranked shaft - installation details
      Removal and installation of a regulator of a camshaft
      Removal and installation of camshafts
      Replacement of directing plugs of valves
      Replacement of saddles of valves
      Removal and installation of pistons
      Replacement of piston rings
      Check of a condition of rods
      Check of a condition of a cranked shaft
      Service of the block of cylinders
      Removal and installation of the pallet of a case of the engine
      The oil pump - installation details
      The sensor switch of level of oil - installation details, verifying data
   + 8-cylinder petrol engines (M119.970/981 and M119.971/981)
   + 12-cylinder petrol engines (M120.980/982)
   + 6-cylinder diesel engines (OM603.971)
   + 6-cylinder diesel engines (OM606.961)
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



56822268



Removal and installation of pistons

Piston removal with a rod

1 — Shatunnaya a cover
2 — the Rod
3 — the Bolt

4 — the Piston
5 — the Lock ring
6 — Shatunny a finger

Installation of pistons

1 — Shatunnaya a cover
2 — the Rod
3 — the Bolt

4 — the Piston
5 — the Lock ring
6 — Shatunny a finger
7 — Opravka


 PERFORMANCE ORDER

1. Curtail covers of shatunny bearings (1). A rod (2) and a cover (1) are marked together.
2. Remove the piston (4) and a rod (2) up. The direction of movement is beaten out on the top part of the piston. On some versions of the shooter of the direction of movement keeps the visibility not long because of wear of the piston; in this case the direction is necessary for noting again.
3. Vypressuyte by means of a screw-driver a lock ring (5) also remove the piston from a rod.
4. Check gaps of piston rings.
5. Grease a piston finger (6) and the rod plug.
6. Establish the piston (4) on a rod (2).
7. Press by hand a piston finger (6).
8. Insert a lock ring (5) into a groove in the piston.
9. Wipe cylinders, shatunny necks, loose leaves and pistons (4) oil.
10. Establish an opravka (7) on piston rings.
11. Establish pistons (4) in the movement direction.
12. Establish rods (2) and covers (1), having combined lateral labels.
13. Check and tighten bolts of fastening of shatunny necks.
14. After assembly check gaps and ease of rotation.