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)
   + 12-cylinder petrol engines (M120.980/982)
   - 6-cylinder diesel engines (OM603.971)
      The air cleaner - installation details
      Replacement of a belt of the drive of the generator
      Removal and installation of a natyazhitel of a belt of the drive of the generator
      Final collector - installation details
      GRM drive chain cover
      Camshaft
      Removal and installation of a head of the block of cylinders
      Verification of the control provision of the camshaft
      Replacement of a chain of the GRM drive
      The GRM drive - the general information, service of components
      Natyazhitel of a GRM drive chain - an installation detail
      Removal and installation of pistons
      Check of a state and replacement of rods
      Measurement of diameters of cylinders
      Removal and installation of sleeves of cylinders
      Check of a condition of a bent shaft
      Removal and installation of an asterisk of a bent shaft
      Removal and installation of the pallet of a case of the engine
      The oil level sensor switch - installation details
      Replacement of a chain of the drive of the oil pump
      Removal and installation of the oil pump
      Removal and installation of the case of an oil filter
   + 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






Camshaft

Details of installation of the camshaft
70 — the Head of the block of cylinders
80, 81, 82 — Covers of bearings of the camshaft
84, 132, 190 — Bolts
84a, 189, 237 — Washers
125 — the Cover of a head of the block of cylinders
188 — a camshaft Asterisk
224 — Natyazhitel of a GRM drive chain
400 — the Oil pump (on models with a self-regulating suspension bracket)

The code of the camshaft is beaten out on a flange near VM tag

Removal

 PERFORMANCE ORDER

1. On engines with a turbocompressor pick up the phone of supply of compressed air
2. Uncover a head of the block of cylinders.
3. Install the piston of the first cylinder in the provision of VMT.

Do not rotate a bent shaft of the engine for a bolt of an asterisk of the camshaft and aside, the return to the direction of rotation.

4. Remove a natyazhitel of a chain of the GRM drive.
5. On models with a self-regulating suspension bracket remove the oil pump.
6. Combine tags on an asterisk of the camshaft and a chain of the GRM drive.
7. Turn off a bolt of fastening of an asterisk of the camshaft, having held the camshaft by means of a metal core.
8. Remove an asterisk of the camshaft and allow a chain to whistle.
9. Turn off bolts of fastening of covers (1), (5) and (6) bearings of the camshaft. Weaken bolts of fastening of covers (2), (3), (4) and (7) serially, on one turn everyone.
10. Remove the camshaft.
11. Remove lock laying (the regulator of an axial gap) and check its state.
12. Remove hydrocompensators. Check their state (visually) and if it is necessary, replace them.

Installation

 PERFORMANCE ORDER

1. Insert lock laying (the regulator of an axial gap) into a head of the block of cylinders.
2. Oil the camshaft motive and establish it in a head of the block of cylinders so that the tag of VMT was located above.
3. Establish covers of bearings of the camshaft and tighten bolts of their fastening. At first tighten covers (2), (3), (4) and (7) serially, on one turn everyone. Then tighten bolts of fastening of covers (1), (3) and (6) bearings of the camshaft.
4. Establish a camshaft asterisk, having combined a tag on it with a tag on a GRM drive chain.
5. Establish a natyazhitel of a chain of the GRM drive.
6. Install the oil pump.
7. Install the piston of the first cylinder in the provision of VMT and check combination of tags.
8. Establish a cover of a head of the block of cylinders. Start the engine and check lack of leaks.




58b5488c