Zetor 4320 - Page 73

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MAIN TECHNICAL PARAMETERS
TECHNICAL DATA OF EKO ENGINES Z 6203, Z 7203, Z 7703, Z 7303
Tractor model Unit
Z 4320 / 4340 Z 5320 / 5340 Z 6320 / 6340 Z 7320 / 7340 Turbo
Engine model Z 6203 Z 7203 Z 7703 Z 7303
Engine type diesel, four stroke with direct fuel injection
Engine execution in line, water - cooled
Number of cylinders 4 4 4 4
Displacement cm
3
3922 3922 3922 3922
Bore x stroke mm 102x120 102x120 102x120 102x120
Rated speed min
-1
2200
Ignition sequence 1-3-4-2
Compression ratio 17
Max. overrun min
-1
2440
Low idle speed min
-1
700-50
Engine power kW 43 46 48 57
Increased of torque % 15 15 15 15
Specific fuel consumption at rated
speed g.kW
-1
.h
-1
245 246 248 248
Engine lubrication pressure type with spalshing
Max. engine oil consumption after
100 hour running in g.kW
-1
.h
-1
0,8 0,9
Engine oil pressure at rated speed
and oil temperature 90°C MPa 0,2-0,5
Min. oil pressure at 700 RPM and
oil temperature 80°C MPa 0,05
Coolant temperature °C 80-95
Valve gear OHV
Oil cleaner fuel flow
Fuel cleaner fuel flow
Injection pump
PP4M10P1f3463 PP4M10P1f3464 PP4M10P1f3465 PP4M10P1f3466
Injector
VA 78S 250 3016
Nozzle DOP 160 S 428 - 4144
Injector opening pressure MPa 18,6 - 0,8
Timing angle ° 18 ± 0,5 14 + 1