S-class W202 Mercedes

1993-2000 of release

Repair and car operation



W202 Mercedes
+ 1.2. General information
+ 2. Maintenance
- 3. Engines
   3.1.2. Identification number
   + 3.1.3. Engine
   3.1.4. Cars with the conditioner
   3.1.5. Bottom cover of a motor compartment
   3.1.6. Covers of cast openings
   3.1.7. Natyazhitel of a chain
   + 3.1.8. Cover of a head of the block of cylinders
   + 3.1.9. Head of the block of cylinders
   + 3.1.10. Camshafts
   3.1.11. Hydraulic tarelchaty 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. Compression
   + 3.1.17. Klinovy belt
   3.1.18. Diagnostics of malfunctions (DB)
   3.1.19. General comments
   3.1.20. Repair work without engine dismantle
   + 3.1.21. Major maintenance of the engine
   + 3.2. Diesel engine (DD)
   3.2.3. Cars with the conditioner
   3.2.4. Bottom cover of a motor compartment
   3.2.5. Covers of cast openings
   3.2.6. Natyazhitel of a chain
   + 3.2.7. Camshaft
   + 3.2.8. Head of the block of cylinders
   + 3.2.9. Maslootrazhatelnye caps
   3.2.10. Cover of a head of the block of cylinders (2,2/2,5 l)
   3.2.11. Hydraulic tarelchaty 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. Head of the block of cylinders and motor block
   3.2.16. Compression
   3.2.17. Maple ridge belt
   3.2.18. Tense device of a maple ridge belt
   3.2.19. Diagnostics of malfunctions (DD)
+ 4. Greasing system
+ 5. Cooling system
+ 6. Heating, ventilation
+ 7. Ignition system
+ 8. Fuel system
+ 9. Transmission
+ 10. Running gear
+ 11. Steering
+ 12. Brake system
+ 13. Body
+ 14. Electric equipment
+ 14.2. Electroschemes








b47c026d b47c026d


3.1.7. Natyazhitel of a chain

GENERAL INFORMATION

Prevention

If the natyazhitel is weakened on a shestigrannik, it should be removed, differently at screwing up the operating chain will be unduly tightened.


Removal

4-CYLINDER ENGINE


PERFORMANCE ORDER
1. Remove the hydraulic coupling of the fan.
2. Uncover heads of the block of cylinders.
3. Remove a fan casing.
4. Establish the engine on 20 ° below VMT of ignition of the first cylinder. For this purpose transfer a transmission to the provision of idling and tighten the parking brake. Turn a cranked shaft by means of a wrench with SW27 nozzle at the central bolt of a belt pulley of a cranked shaft in the direction of rotation of the engine, i.e. clockwise, before coincidence of markings. The length of a nozzle of a wrench should be more than 42 mm.
5. Insure a final cam-shaft from turn. For this purpose enter a suitable core (Mercedes-N 111589011500) into an opening of a flange of a cam-shaft (78) through an opening in a cover of the bearing of a cam-shaft. If the chain acts in film, in the same way fix an inlet cam-shaft.

Prevention

If do not insert fixing pin (shooter), adjust a basic provision of a cam-shaft.


6. Close the generator a film or a rag.

6-CYLINDER ENGINE

PERFORMANCE ORDER
7. Remove maple a ridge belt.
8. If necessary weaken and remove the air pump from above a natyazhitel of a chain.

ALL ENGINES


PERFORMANCE ORDER
9. Weaken a screw stopper (1), having turned on one turn, using a face key of SW10.
10. Unscrew a natyazhitel of a chain in a complex with a detail (14) and remove.
11. Unscrew a screw stopper (1) with a sealing ring (5). Take a compression spring (8) together with a pin (7).
12. To Vytolknita back press a finger (10) with a fiksatorny spring (9).
13. Details separately carefully clean fuel and check on further suitability to use (risks, a raid). The damaged details replace, in case of need in a set replace a natyazhitel of a chain.

Installation

PERFORMANCE ORDER
1. Fasten to the motor block the case of a natyazhitel of a chain (14) with a new sealing ring (15). The inhaling moment for the 4-cylinder engine – 80 N of m, for 6-cylinder – 50 N of m.
2. Collect details (7–10) as before their dismantling, and insert in mounted a natyazhitel of a chain.
3. Twirl a screw stopper (1) with a new condensing ring (5) with the moment of 40 N of m, the spring is thus compressed.

4-CYLINDER ENGINE
Prevention

Take stopping core from a cam-shaft flange.


PERFORMANCE ORDER
4. Establish a cover of a head of the block of cylinders.
5. Remove closing film from the generator.
6. Establish the hydraulic coupling of the fan.
7. Start the engine and check tightness of a natyazhitel of a chain.

6-CYLINDER ENGINE

PERFORMANCE ORDER
4. Fix the air pump.
5. Put on maple a ridge belt.
6. Start the engine and check tightness of a natyazhitel of a chain.