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
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ENGINE IN VOLUME OF 2,0 L
Valve saddle
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Inlet valve
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Final valve
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Width of a saddle of the valve |
1,2-1,7 mm
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1,7-2,0 mm
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Corner of a saddle of the valve |
45 °
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45 °
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Correcting corner from above |
15 °
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15 °
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Correcting corner from below |
65 °
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65 °
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Admissible radial palpation |
0,03 mm
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0,03 mm
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Min. Distance "а1" |
0,1-0,5 mm
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0,1-0,5 mm
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Min. Distance "а2" |
– 1,0 mm
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– 1,0 mm
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а1 – the minimum distance between a surface of a plate of the valve and bottom edge of a head of the block of cylinders for new valves and saddles of valves. а2 – the minimum distance between a surface of a plate of the valve and bottom edge of a head of the block of cylinders after completion of saddles of valves and grinding in of valves. |
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