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)
   + 8-cylinder petrol engines (M119.970/981 and M119.971/981)
   - 12-cylinder petrol engines (M120.980/982)
      Air purifier - installation details
      Covers of heads of the block of cylinders
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      The valve of a retsirkulyatsiya of the fulfilled gases - installation details
      Pump of supply of air
      Removal and installation of the top forward covers
      Heads of the block of cylinders
      Removal and installation of a cover of a chain of a drive of GRM
      Replacement of a chain of a drive of GRM
      GRM drive - the general information, service of components
      Natyazhitel of a chain of a drive of GRM
      Camshaft regulator
      Removal and installation of camshafts
      Check of phases of a gazoraspredeleniye
      Check and adjustment of provision of camshafts
      Replacement of directing plugs of valves
      Measurement of diameters of cylinders
      Removal and installation of pistons
      Check of rods
      Removal and installation of a cranked shaft
      Removal and installation of the pallet of a case of the engine
      The sensor switch of level of oil - installation details
      The oil pump - a design and installation details
   + 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


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Replacement of a chain of a drive of GRM

See also Section GRM Drive - the general information, service of components


Replacement of a chain of a drive of GRM

A — Rassoyedineniye of a chain of a drive of GRM
In — Zaklepyvaniye of a chain of a drive of GRM by means of a connecting link
6 — Thickness of an intermediate plate 7a = 1.6 mm, thickness of an external plate 8b = 1.2 mm


 PERFORMANCE ORDER

1. Remove the top covers (30) and (30a).
2. Remove a natyazhitel of a chain of a drive of GRM.
3. Remove spark plugs.
4. Disunite a chain of a drive of GRM.
5. Cover GRM cover with a fabric.

Rassoyedineniye of a chain

 PERFORMANCE ORDER

1. Screw a persistent spindle (02) together with a persistent finger (02a) in the adaptation (03).
2. Establish the adaptation (03) on a chain.
3. Roll a persistent spindle (02) until the persistent finger (02a) will not rest against a chain finger.
4. Screw a persistent spindle (02) and выпрессуйте a chain finger.
5. Unscrew a persistent spindle (02) and remove the adaptation (03). Take a finger from the adaptation (03).

Chain assembly

 PERFORMANCE ORDER

1. Attach a new chain (5) to old (4) by means of the connecting link consisting of the lock (6), a plate (7), an intermediate plate and a cover (8).

2. Turn a cranked shaft in the direction of rotation of the engine by means of a key. Hold a chain (5) hand on an asterisk of the right final camshaft (9) and take the bottom end of a chain (4) outside from a cover of a chain of a drive of GRM.
3. Continue to rotate a cranked shaft of the engine until there will be a possibility to connect both ends of a new chain a connecting link.
4. Disconnect an old chain and remove a connecting link.
5. Connect a new chain a connecting link and an intermediate plate (the thickness of 1.6 mm).
6. Establish a persistent detail of smetky (F1) in the zaklepochny tool and screw a bolt (28).
7. Establish a persistent detail of smetky (D5) in the zaklepochny tool.
8. Insert an external plate (11) (thickness of 1.2 mm) into a persistent detail (D5).
9. Establish cores (shooters) on fingers of a connecting link. Screw a spindle (06) to full resistance. At a vvorachivaniye be convinced that fingers of a connecting link correctly entered into an opening in a plate.
10. Establish a persistent detail of smetky (D5).
11. Establish the zaklepochny tool in the middle of a plate.
12. Tighten a spindle (06). Moment of a tightening of 30-35 Nanometers.

Fingers of a connecting link заклепываются separately.

13. Check quality of a zaklepyvaniye, in case of need repeat process.