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






Check and adjustment of control position of camshafts

Check

 PERFORMANCE ORDER

1. Install the piston of the first cylinder in situation 45 ° before VMT.
2. Block camshafts through openings in covers of the first bearings by means of four cores (1) with a diameter of 6.5 mm.

Adjustment (situation 45 ° before VMT)

 PERFORMANCE ORDER

1. Remove the top sliding lever (2a).
2. Remove a natyazhitel of a chain of the GRM drive.
3. Turn camshafts in the direction of rotation of the engine, since the right final camshaft (1). Begin adjustment with the left final camshaft (4), the weakened part of a chain (arrow) near a natyazhitel has to move rotation of camshafts (1), (2) and (3).
4. Install the left final camshaft in control situation with the help of a key (3). Establish a GRM drive chain on an asterisk and block the camshaft a core.
5. Install the left inlet camshaft in control situation with the help of a key (3). Establish a GRM drive chain on an asterisk and block the camshaft a core. The camshaft is in situation "lags".
6. Install the right inlet camshaft in control situation with the help of a key (3). Establish a GRM drive chain on an asterisk and block the camshaft a core (1). The camshaft is in situation "lags".
7. Install the right final camshaft in control situation with the help of a key (3). Establish a GRM drive chain on an asterisk and block the camshaft a core (1).
8. Further installation is made as it should be, the return to removal.