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)
      Covers of heads of the block of cylinders - installation details
      Removal and installation of the inlet pipeline
      Removal and installation of a final collector
      Removal and installation of heads of the block of cylinders
      Removal and installation of covers of a chain of a drive of GRM
      Replacement of a chain of a drive of GRM
      Check of phases of a gazoraspredeleniye
      GRM drive - the general information, service of components
      Removal and installation of a regulator of phases of a gazoraspredeleniye
      Removal and installation of camshafts
      Check and adjustment of control provision of camshafts
      Removal and installation of valves
      Replacement of directing plugs of valves
      Replacement of rings of saddles of valves
      Removal and installation of pistons
      Designation and sizes of pistons
      Check of a condition of rods
      Check of a condition of a cranked shaft
   + 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



Check of a condition of a cranked shaft

The M119.97 series engine with the adjusting bearing

Details of installation of a cranked shaft with the adjusting bearing

1, 3, 19, 21, 25 — the Bolt
2, 28 — Laying
4, 22 — the Engraver
5 — the Pulley of a cranked shaft
6 — the Damper of krutilny fluctuations
7 — the Nave
8 — the Asterisk of a cranked shaft
9 — the Cranked shaft
10 — Shponka
11 — the Top loose leaf of the radical bearing
12 — Nizhny the loose leaf of the radical bearing

13 — the Top adjusting bearing (loose leaf) with an oil opening
14 — Nizhny the adjusting bearing (loose leaf)
15 — the Top loose leaf of the shatunny bearing
16 — the Disk of 4.5 mm
17 — the Leading disk in thickness of 1.5 mm and diameter of 296 mm
18 — the Leading disk in thickness of 1 mm and diameter of 287 mm
20 — the Gear wreath of a flywheel
23, 29 — Nuts
24 — the Finger
26 — the Arm
27 — the Magnet

Details of installation of a cranked shaft with the adjusting bearing are presented on сопр. illustrations. Dimensional characteristics of a cranked shaft are provided in Specifications.

Designation of loose leaves of radical bearings and installation of a cranked shaft

 PERFORMANCE ORDER

1. Establish covers of radical bearings, observing designation and since the first. The adjusting surface of the block of cylinders - is asymmetric, covers of a cranked shaft can be established only in one situation.
2. Grease a carving part and contact surfaces of nuts and tighten them the moment of 50 Nanometers.
3. Grease a carving part and contact surfaces of lateral bolts М10x40, establish them with laying and tighten the moment of 50 Nanometers.
4. Measure an opening under the radical bearing in the directions A, B and C at two levels (konusnost). If diameter of an opening more admissible or has a konusnost, establish on an interfaced surface of a cover a plate (Max. to 0.02 mm).
5. Insert the bottom loose leaf and establish a cover of the radical bearing. Tighten nuts and lateral bolts the moment of 50 Nanometers.
6. Measure diameters of openings and write down them.
7. Measure diameters of radical necks and define a radial gap of bearings of a cranked shaft. Achievement of a demanded radial gap can be reached by replacement of loose leaves.
8. Measure width of a neck of the radical bearing. Define an axial gap of a cranked shaft. Repair loose leaves are delivered the increased size.
9. Grease loose leaves and a cranked shaft with impellent oil and establish a cranked shaft.

Loose leaves with oil channels are established from above!

10. Tighten covers of radical bearings in an order specified an illustrations.

11. Measure axial люфт a cranked shaft.
12. Turn a cranked shaft by hand and check ease of its rotation.

Designation of loose leaves of shatunny bearings and their installation

 PERFORMANCE ORDER

1. Check shatunny bolts.
2. Insert loose leaves of shatunny bearings, establish covers of rods with loose leaves and tighten nuts or bolts the moment of 35 Nanometers.
3. Measure diameter of an opening under a shatunny neck and write down it.
4. Measure width of a shatunny neck and define a radial gap of shatunny bearings.
5. Grease loose leaves, a cranked shaft, pistons and cylinders with impellent oil. Establish pistons and rods.
6. Tighten nuts and bolts of fastening of shatunny covers.
7. Measure axial люфт rods.

M119.97/98 series engines with persistent half rings

Details of installation of a cranked shaft with persistent half rings

1, 3, 19, 21, 25 — Bolts
2, 4, 22, 28 — Laying
5 — the Pulley of a cranked shaft
6 — the Damper of krutilny fluctuations
7 — the Nave
8 — the Asterisk of a cranked shaft
9 — the Cranked shaft
10 — Shponka
11 — the Top loose leaf of the radical bearing of a cranked shaft
12 — Nizhny the loose leaf of the radical bearing of a cranked shaft
13 — the Top persistent half rings
14 — the Bottom persistent half rings

15 — Shatunnye loose leaves
16 — the Disk in thickness of 4.5 mm
17 — the Leading disk in thickness of 1.5 mm in diameter of 296 mm
18 — the Leading disk in thickness of 1 mm and diameter of 287 mm
20 — the Gear wreath of a flywheel
23, 28 — Nuts
24 — the Finger
26 — the Arm
27 — the Magnet
29 — Nut М5
30 — the Damper of krutilny fluctuations with a pulley
31 — the Gear wreath of a flywheel (only on models with Motronic control system)

Dimensional characteristics of a cranked shaft are provided in Specifications.