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)
      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 the GRM drive
      The GRM drive - the general information, service of components
      Asterisk of a bent shaft - an installation detail
      Removal and installation of the regulator of the camshaft
      Removal and installation of camshafts
      Replacement of the 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 bent 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 oil level sensor switch - installation details, test 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)
+ 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 the camshaft

See also Section GRM Drive - the general information, service of components.


Camshaft regulator

1, 3, 15, 15a, 10 — Bolts
2, 12 — Rings
4 — Fittings
5, 21 — Fingers
6 — the Nut
7 — the Forward cover
8, 11 — Sealing rings
9 — the Adapter

13 — a camshaft Asterisk
14 — the Adjusting piston
16 — a regulator Flange
17 — Pruzhina
18 — the Plunger
19 — the Lock ring
20 — the Plug
22 — the Camshaft

Removal

 PERFORMANCE ORDER

1. Install the piston of the first cylinder in VMT.
2. Remove the top cover.
3. Mark the provision of asterisks of camshafts concerning a GRM drive chain.
4. Turn off a bolt (3), holding fittings (4) (shooter). Remove fittings (4).
5. Turn off a nut 6 and uncover with a ring (12).
6. Turn off a camshaft asterisk.
7. Remove an asterisk (13) and the adjusting piston (14). Turn off bolts (15) and (15a) and remove a flange (16) from an asterisk of the inlet camshaft.

Installation

 PERFORMANCE ORDER

1. Install a flange (16) on the camshaft (22). Be convinced of correctness of installation of a finger 21.
2. Install the piston (14) on a flange (16) in the provided situation, rotating it to the left. Lift a GRM drive chain up.
3. Install an asterisk of the camshaft (13) on the adjusting piston (14) in the provided situation, rotating it to the right; lift a GRM drive chain before performance of it.
4. Establish a cover with a ring (12) and wrap a nut (6), but do not tighten completely.
5. Install an asterisk on the final camshaft.
6. Establish a GRM drive chain on both asterisks according to tags. Tighten a nut (6) on the regulator.
7. Install fittings (4) on a plunger (18). Tighten a bolt (3). The roller finger (shooter) in fittings (4) has to be combined with a flat surface on a plunger (18).

8. Establish a forward cover from above.