Mercedes S-Class W-140

In 1991-1999 editions

Repair and enterprise of the car



Mercedes S-Class
+ Mercedes Benz cars of the class S (W-140)
+ operation manual
+ Routine maintenance
- Motor
   Check of compression in the motor cylinder
   Check of the motor by means of vacuum meter
   Serpantinnogo belt of an incentive of auxiliary devices
   + 6-cylinder petrol engines (M104.944 and M104.990/994)
   - 8-cylinder petrol engines (M119.970/981 and M119.971/981)
      Covers of the heads of the block of cylinders - a device detail
      Removal and device of the pipeline of access
      Removal and device of a final collector
      Removal and device of the heads of the block of cylinders
      Removal and kryschek device of a chain of an incentive of GRM
      Compensation of a chain of an incentive of GRM
      Check of phases of management of gas exchange
      GRM incentive - the general information, service of components
      Removal and device of the regulator of phases of management of gas exchange
      Removal and device of waves of curves
      Check and regulation of control provision of waves of curves
      Removal and device of gates
      Compensation judging banks of gates
      Compensation of rings of Sättel of gates
      Removal and device of pistons
      Name and volumes of pistons
      Check of a condition of poles of an instinct
      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
+ systems of power supply and edition
+ electric equipment of the motor
+ gear shifting boxes
+ Awtomatitscheckaja transmission
+ connection
+ brake system
+ Aufhängung and management
+ body
+ electric onboard equipment



Removal and device of pistons

Removal

 EXECUTION ORDER

1. Prevent schatunnyje of a cover and accept pistons together with instinct poles.
2. Check bolts of strengthening of schatunnych kryschek.
3. By means of the screw-driver you accept a blocking ring and wypressujte a piston finger.

Device

 EXECUTION ORDER

1. If the piston is damaged, check freedom of action and an axial beating of piston rings.
2. Grease a finger of the piston and to bank of poles of an instinct with oil.
3. Install the piston in such a way that the arrow was directed in the direction of the movement and a fold of the block (shooter) of a pole of an instinct were outside.
4. Sapressujte of fingers of the piston in the hand piston.
5. Establish a blocking ring in a flute.
6. Establish a tape for obschimanija of piston rings, and install the piston in the cylinder of arrows in the direction of the movement.
7. Establish cover schatunnyje on an instinct pole after names on them.
8. Prowernite a bent shaft you just check ease of Drehens.

Technical characteristics

Freedom of action of the piston
0.004-0.026 mm
Distinction between the mass of the piston of each cylinder
8 g
Piston finger length
24.000 mm
Freedom of action of disembarkation of a finger of the piston in the piston
0.004-0.008 mm