Mercedes M-Class W163

since 1997 release

Repair and operation of the car



Mercedes W163
+ Mercedes-Benz cars of a class M (W163)
+ Governing bodies and methods of safe operation
+ Current leaving and service
- Engine
   Check of compression pressure in cylinders
   Check of the engine by means of the vacuum gage
   Replacement of a belt of the drive of auxiliary units and elements of the mechanism of its tension
   - Petrol models
      Removal and installation of the engine
      Removal and installation of covers of the GRM drive
      Replacement of a gas-distributing chain
      Removal and installation of components of the GRM drive
      Installation of basic position of camshafts
      Verification of the basic provision of a balancing shaft (only series 112 engines)
      Removal and installation of the GRM components
      Removal and installation of a head(s) of cylinders
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      Removal and installation of a face cover, replacement of a back epiploon of a bent shaft
      Removal and installation of a damper of tortional fluctuations / pulley of a driving belt
      Removal and installation of a flywheel / driving disk
      Removal and installation of support of a suspension bracket of the power unit
      Service of the lubrication system
   + Diesel models
+ Cooling systems, heating and air conditioner
+ A power supply system and production of the fulfilled gases
+ Systems of electric equipment of the engine
+ Manual box of gear shifting
+ Automatic transmission
+ Transmission line
+ Brake and auxiliary systems
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment



Removal and installation of the GRM components

M111

Bolts of fastening of asterisks of camshafts are subject to replacement without fail.

Camshaft regulator

Details of installation of the regulator of the camshaft of the engine of a series 111 (1 of 2)

Details of installation of the regulator of the camshaft of the engine of a series 111 (2 of 2)

Details of installation of the regulator of the camshaft on the engine of a series 111 are shown on illustrations to which all references which are found in the text belong.

Removal

 PERFORMANCE ORDER

  1. Uncover a head of cylinders (18).
  2. Remove a forward cover (23) heads of cylinders (see the Section Removal and installation of covers of the GRM drive).
  3. Having turned a bent shaft in the normal direction, bring the piston of the first cylinder into situation 20 ° after VMT and fix camshafts (75 and 78) blocking cores (01).
  4. Mark with a marker the provision of a gas-distributing chain (73) concerning asterisks (76 and 13) camshafts.
  5. Remove a natyazhitel of a chain (58) (see the Section Removal and installation of components of the GRM drive).
  6. Remove an asterisk (76) of the final camshaft.
  7. Remove the regulator from the inlet camshaft.

Installation

 PERFORMANCE ORDER

  1. Install the regulator on the regular place.
  2. Fill in a chain and put on a shaft pin an asterisk (76).
  3. Establish a natyazhitel of a chain (58).
  4. Take blocking cores (01).
  5. Turn a bent shaft in the normal direction twice, then check basic installation of camshafts (see the Section Installation of Basic Position of Camshafts).
  6. Establish a forward cover (23) heads of cylinders (see the Section Removal and installation of covers of the GRM drive).
  7. Establish a cover of a head of cylinders (18).

Camshafts

Details of installation of camshafts of the engine of a series 111


 PERFORMANCE ORDER

  1. Details of installation of camshafts on engines of a series 111 are shown on an illustration to which all references which are found in the text belong.
  2. Remove a forward cover of a head of cylinders (see the Section Removal and installation of covers of the GRM drive).
  3. Having turned a bent shaft in the normal direction, bring the piston of the first cylinder into situation 30 ° after VMT, - in this position of the engine camshafts can be turned without risk of collision of valves with pistons.
  4. Make sure of correctness of basic installation of shaft (see the Section Installation of Basic Position of Camshafts), then mark with a marker the provision of a gas-distributing chain (73) concerning asterisks (75 and 76) camshafts.
  5. Remove a natyazhitel of a chain (14) (see the Section Removal and installation of components of the GRM drive).
  6. Remove an asterisk (76) of the final camshaft.
  7. Lift a chain (73) and remove an asterisk (75) of the inlet camshaft.
  8. By means of a rozhkovy key (1) deploy camshafts (77 and 78) so that as much as possible to weaken the effort developed by valvate springs, - cams have to be developed by heels to pushers.
  9. Mark covers of bearings of camshafts, then turn out fixing bolts and uncover.
  10. Carefully take camshafts from a head of cylinders.
  11. Installation is made upside-down, - track correctness of an arrangement of bearing covers.

M112/113

Bridges of covers of bearings of camshafts

Details of installation of bridges of covers of bearings of camshafts of engines of series 112 and 113

Order of tightening of bolts of fastening of bridges of covers of bearings of camshafts on series 112 engines

Order of tightening of bolts of fastening of bridges of covers of bearings of camshafts on series 113 engines


 PERFORMANCE ORDER

  1. Details of installation of covers of bearings of camshafts on engines of series 112 and 113 are shown on an illustration to which all references which are found in the text belong.
  2. Uncover heads of cylinders.
  3. Having turned a bent shaft in the normal direction, bring the piston of the first cylinder into situation 40 ° after VMT in which there is no risk of collision of pistons with valves at a provorachivaniye of camshafts.
  4. Remove a natyazhitel of a chain (A) (see the Section Removal and installation of components of the GRM drive).
  5. Tie up a gas-distributing chain to asterisks of camshafts in order to avoid its sliding.
  6. Working as it should be, the return shown on illustrations, weaken and turn out fixing bolts, then remove bridges of covers of bearings.
  7. Installation is made upside-down, - tightening of bolts of fastening of bridges of covers of bearings of camshafts has to be made strictly in a certain order.

Axes of yokes

Details of installation of axes of yokes of the drive of valves on engines of series 112 and 113

Details of installation of axes of yokes of the drive of valves on engines of series 112 and 113 are shown on an illustration to which all references which are found in the text belong.

Removal

 PERFORMANCE ORDER

  1. Remove the bridge of covers of bearings of the camshaft (see above).
  2. Evenly warm casting of the bridge up to the temperature about 150 °C, - no more than 160 °C!
  3. Lay the bridge on a board (4) and take from it a hollow axis of yokes (1), it is accurate выстучав it from the opposite side through a drift (1) with a diameter of 15 mm.
  4. Check a condition of an axis and yokes, replace faulty components.

Installation

 PERFORMANCE ORDER

  1. Evenly warm the bridge up to the temperature of 150 °C, cool an axis of yokes and accurately begin to knock it to the bridge, having used the directing shaft with a diameter of 16 (final assembly) or 18 (inlet assembly) millimeters, - at an axis zastukivaniye at the same time take the directing shaft, track that yokes did not warp.
  2. Level an axis of yokes, having passed pair of fixing screws throughout openings to the bridge of covers.
  3. Establish the bridge of covers (see above).

Camshafts

Details of installation of camshafts on engines of series 112 and 113

Details of installation of camshafts on engines of series 112 and 113 are shown on сопр. an illustration to which all references which are found in the text belong.

Removal

 PERFORMANCE ORDER

  1. Uncover heads of cylinders.
  2. Having turned a bent shaft in the normal direction, bring the piston of the first cylinder into situation 40 ° after VMT in which there is no risk of collision of pistons with valves at a provorachivaniye of camshafts.
  3. Remove a natyazhitel of a chain (2) (see the Section Removal and installation of components of the GRM drive).
  4. Remove Hall's sensor (1).
  5. Remove a camshaft asterisk, previously having tied up to it a gas-distributing chain.
  6. Remove the bridge of covers of bearings (4) (see above).
  7. Take the camshaft.

Installation

 PERFORMANCE ORDER

  1. Install the camshaft in a head of cylinders.
  2. Establish the bridge of covers of bearings (4) (see above).
  3. Install the camshaft in basic situation (see the Section Installation of Basic Position of Camshafts).
  4. Establish a camshaft asterisk.
  5. Install Hall's sensor (1)
  6. Establish a natyazhitel of a chain (2) (see the Section Removal and installation of components of the GRM drive).
  7. Check correctness of combination of adjusting tags, then establish covers of heads of cylinders.