Mercedes S-Class W-140

1991-1999 of release

Repair and operation of the car

Mercedes S-Class
+ Mercedes-Benz cars of the class S (W-140)
+ Operation manual
+ Routine maintenance
- Engine
   Check of a compression in engine cylinders
   Check of the engine by means of the vacuum gage
   Belt of the 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)
      Covers of heads of the block of cylinders - installation details
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      Removal and installation of heads of the block of cylinders
      Removal and installation of covers of a chain of the GRM drive
      Replacement of a chain of the GRM drive
      Check of phases of gas distribution
      The GRM drive - the general information, service of components
      Removal and installation of the regulator of phases of gas distribution
      Removal and installation of camshafts
      Check and adjustment of control position of camshafts
      Removal and installation of valves
      Replacement of the directing plugs of valves
      Replacement of rings of saddles of valves
      Removal and installation of pistons
      Designation and sizes of pistons
      Check of a condition of rods
      Check of a condition of a bent shaft
   + 12-cylinder petrol engines (M120.980/982)
   + 6-cylinder diesel engines (OM603.971)
   + 6-cylinder diesel engines (OM606.961)
+ Cooling systems, heating
+ Power supply system and release
+ Engine electric equipment
+ Gear shifting box
+ Automatic transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment

Removal and installation of the regulator of phases of gas distribution

Regulator of phases of gas distribution


1, 3, 15 — Bolts 2, 7, 12 — Covers 4 — Fittings 6 — the Nut 13 — the Right asterisk 14 — the Adjusting piston 14a — the Conic spring	16 — the Flange 17 — Pruzhina 19 — the Lock ring 20 — the Plug 21 — the Finger 22 — the Camshaft

Removal of an asterisk of the left camshaft


6 — the Nut 12 — the Cover 13 — the Asterisk 14 — the Adjusting piston 14a — the Conic twisted spring

Removal

PERFORMANCE ORDER

1. Remove forward covers of both regulators.
2. Install the piston of the first cylinder in situation 45 ° before VMT.
3. Block camshafts by means of cores (1).
4. Mark a GRM drive chain arrangement concerning asterisks of camshafts.
5. Remove a natyazhitel of a chain of the GRM drive. 6. Remove the top directing levers. Remove only the right lever for the right regulator. 7. Remove an asterisk of the right final camshaft.
8. Turn off a bolt (3) fastenings of fittings (4).
9. Turn off a nut (6), uncover (12), an asterisk of the left camshaft (13) with the adjusting piston (14) and a conic spring (14a). Turn off bolts (15) and remove a flange from the inlet camshaft.

Installation

PERFORMANCE ORDER

1. Tighten a flange (16) on the inlet camshaft (22). Be convinced of correctness of installation of the directing fingers (21). Replace bolts (15).
2. Insert a spherical spring (14a) and install the adjusting piston (14) on a flange (16) in the fixed situation (blocking tooth In). 3. Establish an asterisk of the inlet camshaft in the fixed situation (blocking tooth In) on vents of the adjusting piston (14); lift a GRM drive chain for providence of this procedure up.
4. Turn off a persistent nut. Hold the regulator assembled for carrying out this operation. 5. Establish a cover (12). 6. Wrap a nut (6). Hold the camshaft (22) by means of a key (03). 7. Install fittings (4) in the fixed situation.