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Engine 2.0 L
The nominal diameter of the cylinder 82.51 mm The dimensions of the piston:
| Fig. 131. sectional view of the piston: a = 21,3 mm; b = 5.0 mm; c = 62.9 mm; d = 21,0 mm
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?�C?� - the diameter of the trough in the piston ?�D?� - the diameter of the gudgeon pin Compression Average value of 10-13 bar [1000-1300 kPa] Limit 7.5 bar [750 kPa] Valve Guides The inner diameter of 7,013-7,035 mm plugs The gap valve stem:
| Fig. 113. Control beating the valve stem inside the guide sleeve using a measuring device VW387
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Valve seats The diameter of the valve seat: inlet valves 39,20 mm exhaust valves 32,40 mm The angle of the valve seat 45 ?� The width of the valve seat: intake valves 2.0mm exhaust valves 2.4 mm Outside correction angle: intake valves 30 ?� exhaust valves 30 ?� Valves The diameter of the valve disc: inlet valves 39.5 mm exhaust valves 32.9 mm The length of the valve: inlet valves 91,85 mm exhaust valves 91.15 mm The diameter of the valve stem: intake valves 6.92 mm exhaust valves 6.92 mm The thickness of the edge of the valve is not less than 0.5 mm
| Fig. 45. Dimensions for grinding facets of valves: a = 45 ?�; a = 3.5 mm maximum; b = at least 0.5 mm
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inlet valves 33,90 mm inlet valves 34,10 mm Pistons Measurement of piston diameter of 10.0 mm from the bottom of the skirt Piston angle 90 ?� to the piston pin axis Nominal diameter 84.475 mm Max. permissible wear of the piston of 0.04 mm from the diameter The clearance of the pistons: normal 0.03 mm the legal limit of 0.07 mm The gap between the piston rings and grooves: normal 0.02-0.05 mm the legal limit of 0.15 mm thermal gap: Normal - Compression Piston Ring 0.20-0.40 mm normal - scraper Ring 0.25-0.50 mm the legal limit of 1.0 mm Cranks Axial internal clearance 0,05-0,31 mm Limits 0.37 mm The clearance of the piston pin 0.01-0.02 mm Crankshaft The number of main bearings 5 Designation main bearing 1 to 5, starting from the front of the engine Adjusting the axial clearance shims Main and connecting rod bearings Thin-walled bearing shells The axial clearance of the crankshaft: normal 0,07-0,17 mm the legal limit of 0.25 mm Main bearing clearance: normal 0.03-0.08 mm the legal limit of 0.17 mm Connecting rod bearing clearance: Normal mm 0,02-0,076 the legal limit of 0.12 mm The diameter of the neck of the radical bearing: nominal diameter of 54.00 mm 1st repair 53,75 mm 2nd repair 53,50 mm 3rd Repair 53.25 mm Engine lubrication system The pressure in the lubrication system 1.0 bar [100 kPa] Maximum lubrication system 7.0 bar [700 kPa] The amount of oil in the engine, which must be filled with the oil change: with filter change 4.7 l without filter change 4,2 liter Engine cooling system The amount of cooling fluid in the cooling system of 9.0 liters Switch The temperature of the inclusion of 1st stage of 92-97 ?� C Off temperature 1st stage 84-91 ?� C The temperature of the switching stage 1 99-105 ?� C Off temperature 2nd stage 91-98 ?� C Thermostat Opening Temperature 87 ?� C Closing temperature 102 ?� C
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