Mercedes S-Class W-140

1991-1999 of release

Repair and car operation



Mercedes S-Class
+ Mercedes-Benz Cars of a class S (W-140)
+ Operation manual
+ Routine maintenance
- Engine
   Compression check in engine cylinders
   Engine check by means of the vacuum gage
   Belt of a 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 a drive of GRM
      GRM drive - the general information, service of components
      Asterisk of a cranked shaft - installation details
      Removal and installation of a regulator of a camshaft
      Removal and installation of camshafts
      Replacement of 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 cranked 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 sensor switch of level of oil - installation details, verifying 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)
+ Systems of cooling, heating
+ Power supply system and release
+ engine Electric equipment
+ gear shifting Box
+ Avtomaticheckaya transmission
+ Coupling
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



56822268



GRM drive - the general information, service of components

Camshafts can be turned without risk of collision of valves with pistons in a case when the cranked shaft is given in situation 30 ° before VMT of the piston of the first cylinder.

The gas-distributing chain can be replaced without engine dismantling. By means of listed below tools the new chain can be connected to old, is passed round asterisks and зачеканена.

At the wrong assembly there can be a collision of valves with the bottoms of pistons!

General information

Details of installation of elements of a drive of GRM (the gas-distributing chain consists of 126 links)

1 — Adjusting labels for engine reduction in the provision VMT of the end of a step of compression of the first cylinder
2 — Cores in diameter of 4 mm for fixing of camshafts
3 — during installation of a chain track, that ledges of a regulator of a camshaft [3] were in the situation "delays".
4 — Podpruzhinennaya a nut of a natyazhitel

5 — the Pin
6 — the Spring
7 — Plunzher
8 — the Case of a natyazhitel


For performance of procedures of removal and installation of elements of a drive of GRM the following special tools be required:

  • Camshaft key (type 1) - No. 104589010100;
  • Camshaft key (type 2) - No. 119589000100;
  • Stripper of a nave/pulley of a cranked shaft - No. 103589003300;
  • Stripper of an asterisk of a cranked shaft - No. 615589013300;
  • The tool for flywheel blocking / a driving disk - No. 601589024000;
  • Bolts М6ґ90 for fixing of the instrument of blocking of a flywheel / a driving disk;
  • The tool for installation of links of a gas-distributing chain - No. 602589003900;
  • Set of shtampoderzhatel for installation of links of a gas-distributing chain - No. 112589096300;
  • Stripper of links of a gas-distributing chain (element 1) - No. 602589023300;
  • Stripper of links of a gas-distributing chain (element 2) - No. 602589056300;
  • The holder of a stripper of the vyazkostny coupling (series 129/140) - No. 120589020100.
  • Pay attention to the next moments:
  • If the return is not stipulated especially, turn the engine only in the normal direction;
  • Observe the efforts of a tightening of fixture stipulated by standards;
  • At the corresponding complete set do not forget to mark before removal adjusting position of the CKP sensor;
  • Do not turn a cranked shaft for asterisks of camshafts, and also other asterisks of a drive of GRM;
  • Do not turn cranked and camshafts at the removed gas-distributing chain.
  • Service of components of a drive of GRM

    Details of installation of elements of a drive of GRM (the gas-distributing chain consists of 126 links)


    1 — Adjusting labels for engine reduction in the provision VMT of the end of a step of compression of the first cylinder
    2 — Cores in diameter of 4 mm for fixing of camshafts
    3 — during installation of a chain track, that ledges of a regulator of a camshaft [3] were in the situation "delays".
    4 — Podpruzhinennaya a nut of a natyazhitel

    5 — the Pin
    6 — the Spring
    7 — Plunzher
    8 — the Case of a natyazhitel


     PERFORMANCE ORDER

    1. Disconnect a negative wire from the battery.
    2. For the purpose of simplification of a provorachivaniye of the engine turn out all spark plugs.
    3. Pass in camshafts lock cores (2) diameter of 4 mm.
    4. During installation of a chain track, that ledges of a regulator of a camshaft (3) were in the situation "delays".

    At the wrong assembly there can be a collision of valves with the bottoms of pistons!

    5. Before performance of repair of the engine weaken on one turn a nut of a natyazhitel.
    6. Remove assembly of a natyazhitel.
    7. Completely give a podpruzhinenny nut (4) natyazhitel.
    8. Take a pin (5) and remove a spring (6).
    9. Push a plunzher (7) in the case of a natyazhitel (8) in the direction specified by an arrow.
    10. Establish the case of a natyazhitel (8) and tighten it with effort of 80 Nanometers.
    11. Fill a plunzher (7), establish a spring (6) and a pin (5).
    12. Screw a nut of a natyazhitel (4) and tighten it with effort of 40 Nanometers.
    13. Tighten a new bolt of a regulator of an inlet camshaft with effort of 7 Nanometers (a type A bolt with a separate washer) or 5 Nanometers + 90 ° (a type B bolt with the built-in washer).

    Bolts М7x13.3 of mm of a regulator inlet and asterisks final camshafts are disposable and are subject to replacement without fail!

    During performance of repair work it is necessary to replace a bolt of type A with a disposable bolt of type B.

    14. Do not forget to grease before installation the central bolt of a pulley of a cranked shaft and its washer (ы).