Mercedes S-class W202

1993-2000 of release

Repair and car operation



Mercedes W202
+ 1.2. The general data
+ 2. Maintenance service
- 3. Engines
   3.1.2. Identification number
   + 3.1.3. The engine
   3.1.4. Cars with the conditioner
   3.1.5. The bottom cover of a motor compartment
   3.1.6. Covers of cast apertures
   3.1.7. Натяжитель chains
   + 3.1.8. A cover of a head of the block of cylinders
   + 3.1.9. A head of the block of cylinders
   - 3.1.10. Camshafts
      3.1.10.1.2. The Control / substantive provision adjustment
      3.1.10.2. The 6-cylinder engine
   3.1.11. Hydraulic тарельчатые pushers
   3.1.12. Maslootrazhatelnye caps
   3.1.13. Valves
   3.1.14. Directing valves
   3.1.15. Saddles of valves in a head of the block of cylinders
   3.1.16. A compression
   + 3.1.17. A klinovyj belt
   3.1.18. Diagnostics of malfunctions (DB)
   3.1.19. Broad-brush observations
   3.1.20. Repair work without engine dismantle
   + 3.1.21. Engine major repairs
   + 3.2. The diesel engine (ДД)
   3.2.3. Cars with the conditioner
   3.2.4. The bottom cover of a motor compartment
   3.2.5. Covers of cast apertures
   3.2.6. Натяжитель chains
   + 3.2.7. A camshaft
   + 3.2.8. A head of the block of cylinders
   + 3.2.9. Maslootrazhatelnye caps
   3.2.10. A cover of a head of the block of cylinders (2,2/2,5)
   3.2.11. Hydraulic тарельчатые pushers
   3.2.12. Valves
   3.2.13. Directing valves
   3.2.14. Saddles of valves in a head of the block of cylinders
   3.2.15. A head of the block of cylinders and the motor block
   3.2.16. A compression
   3.2.17. Клиновой a ridge belt
   3.2.18. The pulling device клинового a ridge belt
   3.2.19. Diagnostics of malfunctions (ДД)
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. A running gear
+ 11. A steering
+ 12. Brake system
+ 13. A body
+ 14. An electric equipment
+ 14.2. Electroschemes







3.1.10. Camshafts

3.1.10.1. The 4-cylinder engine

3.1.10.1.1. Removal and installation
THE GENERAL DATA

The prevention

If details of management are used by valves again, they need to be established on the same places. To avoid mess, it is recommended to make the corresponding panel for their storage. Camshafts are dismantled in a direction upwards at the established head of the block of cylinders.


Removal

PERFORMANCE ORDER
1. Disconnect a wire of "weight" of the battery.
The prevention

At a battery detachment the anticreeping code of radio is extinguished.


2. Remove a forward cover.
3. Establish the first cylinder on 20 more low ВМТ ignitions.
4. Instructions: in such position (20 more low ВМТ) it is possible to turn camshafts at the removed chain of management so that valves did not adjoin to the piston basis.
5. Uncover heads of the block of cylinders.
6. Remove натяжитель chains.
7. A paint designate position of an operating chain concerning both gear wheels of an operating chain of camshafts. For this purpose put a stroke through a chain and a chain wheel.
8. Unscrew a gear wheel of a final camshaft a wrench with nozzle Т40, holding thus a camshaft at шестигранника. Remove a camshaft gear wheel.
9. Remove an operating chain from a gear wheel of an inlet camshaft.
10. Turn camshafts рожковым a key that all basic circles of cams adjoined to тарельчатым to pushers. Thanks to it camshafts without pressure are fixed in bearings.
The prevention

Camshafts are very sensitive to breakage.


11. Unscrew a cover of bearings of camshafts.
12. Unscrew all bolts of this cover of the bearing cross-wise at first on 1/2 turns, then all bolts on 1 turn and then definitively turn off.
13. Uncover the bearing.
14. Take camshafts.

Installation

PERFORMANCE ORDER
1. Carefully clear all assembly parts промывочным gasoline, clear sealing surfaces.
2. Grease with engine oil camshafts, тарельчатые pushers and installation sites of bearings.
3. Establish camshafts so that whenever possible all basic circles of cams adjoined to тарельчатым to pushers.
The prevention

The inlet camshaft can be established with or without a camshaft gear wheel. If the camshaft is replaced, pay attention to the correct coordination. The index of camshafts costs at the second bearing on a camshaft.


4. Establish covers of bearings of a cam-shaft in appropriate sequence.
5. Bearings and covers of camshafts number one after another from 1 to 10.
6. Tighten covers of bearings alternately with the moment of an inhaling 20 Н.м.
7. A management chain impose from above on a gear wheel of an inlet camshaft and the sliding tyre.
The prevention

For the engine in volume of 2,2 l: turn a regulator of camshafts about a gear wheel of an inlet camshaft (75) in position "spat" (late) against the stop in a direction of rotation of a camshaft.


8. Establish a gear wheel of a final camshaft in an operating chain and tighten a new bolt with a fillet with the moment 20 Н.м. Then tighten a bolt in the same direction рожковым a key on 90 .
9. Check up coincidence of the marks put at dismantle on gear wheels of a camshaft and an operating chain.
10. Establish натяжитель chains.
11. Establish a cover of a head of the block of cylinders.
12. Establish a forward cover.
13. Connect a wire of "weight" of the battery (–).
14. Expose time for hours.
15. Set an anticreeping code of radio.