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)
   + 8-cylinder petrol engines (M119.970/981 and M119.971/981)
   - 12-cylinder petrol engines (M120.980/982)
      Air purifier - installation details
      Covers of heads of the block of cylinders
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      The valve of a retsirkulyatsiya of the fulfilled gases - installation details
      Pump of supply of air
      Removal and installation of the top forward covers
      Heads of the block of cylinders
      Removal and installation of a cover of a chain of a drive of GRM
      Replacement of a chain of a drive of GRM
      GRM drive - the general information, service of components
      Natyazhitel of a chain of a drive of GRM
      Camshaft regulator
      Removal and installation of camshafts
      Check of phases of a gazoraspredeleniye
      Check and adjustment of provision of camshafts
      Replacement of directing plugs of valves
      Measurement of diameters of cylinders
      Removal and installation of pistons
      Check of rods
      Removal and installation of a cranked shaft
      Removal and installation of the pallet of a case of the engine
      The sensor switch of level of oil - installation details
      The oil pump - a design and installation details
   + 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 the top forward covers

Removal

Details of installation of the top forward covers

1a — the Clamp
3 — a distributor Rotor (engines 120.980)
4 — Begunok (engine 120.980)
5 — the Protective cover (engines 120.980)
5a — Consolidation (engine 120.980)
6 — Rubber laying
7 — the Sealing ring
8 — the Tank of the pump of the amplifier of a steering

9a — the Branch pipe of system of cooling
11 — the Arm
12 — the Pump of the amplifier of a steering
12a — the Adapter of the pump of the amplifier of a steering
12b — Consolidation
13 — the Directing bridge
30 — the Right forward cover
30a — the Left forward cover


Details of installation of a basic arm

11 — the Arm
13, 14 — Bolts М8х85


 PERFORMANCE ORDER

1. Remove covers of heads of the block of cylinders.
2. Remove a radiator.
3. Remove a belt of a drive of the generator.
4. Remove the thermostat case.
5. Remove directing roller.
6. Remove a branch pipe (9a) cooling systems.

7. Remove a rotor and a begunok (4) distributors (series 120.980 engines).
8. Remove a protective cover and consolidation.
9. Lift the tank of the pump of the amplifier of a steering up and remove it together with tubes.
10. Unscrew an arm (11) and remove it.
11. Unscrew an adapter (12a) the pump of the amplifier of a steering (12).
12. Unscrew bolts (shooters) and remove forward covers.
13. Replace rubber laying and a sealing ring under a branch pipe of system of cooling.
14. Wipe sealing surfaces of a forward cover and a head of the block of cylinders.
15. Check laying of the directing bridge of a chain of a drive of GRM on lack of traces of damages and if it is necessary, replace it.

Installation

At installation of the top covers be convinced that rubber laying is not displaced down (shooters)

1 — the Plug
2 — the Sealing edge of an epiploon
31 — the Finger of the directing lever


Bolts of fastening of the left top cover (the right top cover is established specularly)

1, 2 — Bolts М8х65
3 — Bolts left top М8х50 right top М8х65


 PERFORMANCE ORDER

1. Put hermetic 002 989 7320 10 in a groove of a cover of a chain of a drive of GRM of the left and right heads of cylinders. Insert new laying (without hermetic) into a dry groove. Grease top of laying with impellent oil. With the same hermetic grease contact surfaces of a head of the block of cylinders.

2. On engines 120.980 establish the plug (1) on a final camshaft. Grease a sealing edge of a radial epiploon (2) impellent oil.
3. Establish forward covers. At their installation be convinced that rubber laying is not displaced down, chamfer the lower part of laying. On the left cover remove a stopper (31), a finger of the directing lever and reinstall them after cover installation.
4. Establish bolts of fastening of covers. Tighten the bottom bolts the first.
5. Further installation is made as it should be, the return to removal. Cut on a begunka (4) should be combined with a finger on a camshaft.