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
      3.2.9.2. Engine in volume of 2,2/2,5 l
   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


3.2.9.2. Engine in volume of 2,2/2,5 l

GENERAL INFORMATION

The high consumption of oil is an indicator of a deterioration of maslootrazhatelny caps. Caps can be removed and at the established head of the block of cylinders. But the compressed air and a lever pusher with the basic device, for example, Mercedes-111 589 015 900, 111 589 186 100, 605 589 006 300 and 604 589 006 300 is for this purpose necessary. If such tools are not present, at replacement of caps it is necessary to remove a head of the block of cylinders.

Removal

Prevention

If details of management are reused by the valve, it is necessary to establish them on former places. To avoid confusion, make the special panel for their storage.



PERFORMANCE ORDER
1. Remove camshafts.
2. Remove a case of camshafts.
3. Remove nozzles.
4. Remove a cover for a set of wires of the engine at a forward wall of a body.
5. Screw a basic partition with a mobile detail of a lever pusher on a head of the block of cylinders. For this purpose it is possible to use bolts of a case of camshafts (М7х42).
6. By means of a wrench with a nozzle establish the piston of the corresponding cylinder in situation VMT. 4-cylinder engine: at situation in VMT of a belt pulley pistons of cylinders 1 and 4 stand in VMT. At coincidence 180 ° labels of a belt pulley with a label on a case are in situation VMT pistons of cylinders 3 and 4.
7. 5-cylinder engine: at the provision VMT of a belt pulley in a dead point there is a cylinder 1 piston. After turn of a cranked shaft on a corner 144 °, respectively, in VMT the piston of the following cylinder in sequence (1–2–4–5–3) is established.
Instruction: it is possible to put, for example, on a remenny pulley four additional labels, respectively at distance 72 °. After replacement of maslootrazhatelny caps of the 1st cylinder rotate the crankshaft while the label 2 does not become opposite to a mark in a case. Thus the piston of the cylinder 2 will be established in VMT. Replace maslootrazhatelny caps of the 2nd cylinder. After that scroll the engine to a mark (4). Now in VMT there will be a piston of the 4th cylinder. Thus it is possible to establish consistently pistons in VMT.
8. It is possible to establish position VMT of the corresponding cylinder also by means of an electrode wire. For this purpose pass an electrode wire in an opening of a nozzle of the cylinder 2 (the piston of the cylinder 2 is with VMT). With the assistant slowly scroll the crankshaft in the direction of its rotation and watch the provision of a wire in the course of rotation. As soon as the wire will occupy the highest situation, the piston is established in VMT.
Prevention

At rotation of a cranked shaft highly hold a management chain that it did not jam.


9. Hang a lever pusher (9).
10. Stop a cranked shaft for what establish the first transfer and tighten the parking brake.
11. In the chamber of compression of the cylinder create superfluous pressure at least the 5th bar (about 5 atm.). For this purpose twist a podsoyedinitelny hose (4) devices of control of tightness of the cylinder with a connecting detail of Mercedes-604 589 006300 in the prechamber (a nozzle opening).
12. Through a hose of the compressed air support constantly in the cylinder superfluous pressure, at least, the 5th bar.
13. Establish a press detail (5) lever pushers (9) on a plate of a klapanny spring. Soriyentiruyte press and mobile details in parallel each other. Fix a mobile detail a bolt (8).
14. Remove a valve spring.
Prevention

Klapanny spring do not remove without use of the compressed air, differently there can be valve and piston damages.


15. Remove from a core of the valve of a detail of a rod of the valve (14) by means of tweezers or a magnet.
16. Take a plate of the valve (15) and a valve (17) spring.
17. Remove a maslootrazhatelny cap from a valve (16) core by means of a special grip (03), for example, HAZET 791-6.

Prevention

Do not damage a core of the valve and directing the valve!


18. Remove the bottom spring plate (20) and check on absence of damages, if necessary, replace.
19. If it is necessary, smooth out a core flute a fine-grained nazhdachny cloth.
20. Check wear of directing valves in the field of a prileganiye of caps to them. If dense landing of maslootrazhatelny caps is not provided, it is necessary to replace them directing (work for repair shop).

Installation

PERFORMANCE ORDER
1. Replace new the pressed details of a rod of the valve and a plate of a spring of the valve.
2. Directing the valve with the loosened rings on maslootrazhatelny caps need replacement (work for repair shop).
3. Oil a cap (16) cores of the valve and manually insert by means of an assembly opravka (04).
4. Establish a spring and a plate of the valve and compress a valve spring.
5. Establish details of a rod of the valve and unclench a klapanny spring.
6. In the same way replace caps on cores of other valves.
7. Lower the compressed air.
8. Establish camshafts.
9. Establish nozzles.
10. Establish a case of camshafts.
11. Fix a cover of wires of the engine on a forward wall of a body.