Kubota Z482-E4B Specifications
| Engine Model: Kubota Z482-E4B |
| Engine Type: 4-cycle vertical 2-cylinder indirect injection liquid-cooled diesel |
| Total Displacement: 29.2 cu.in (0.48 L) |
| Rated Engine Power: 13.3 Hp (9.9 kW) at 3600 rpm |
| Aspiration Type: Naturally aspirated |
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Engine Model .............. Kubota Z482-E4B
Engine Type .............. 4-cycle two-cylinder indirect injection liquid-cooled diesel
Number of cylinders .............. 2
Cylinder Bore, mm (in) .............. 67.0 (2.64)
Piston Stroke, mm (in) .............. 68.0 (2.68)
Total displacement, L (cu.in) .............. 0.48 (29.2)
Rated power, kw (hp) .............. 9.9 (13.3)
Rated speed, rpm .............. 3600
Maximum torque, Hm (lb-ft) .............. 29.7 (21.9)
Torque speed, rpm .............. 2600
Combustion Chamber .............. Spherical type (E-TVCS)
Direction of rotation .............. Counter-clockwise
Compression ratio .............. 23.5:1
Firing order .............. 1-2
Lubricating system .............. Forced lubrication by trochoid pump
Oil pressure indicating .............. Electrical type switch
Oil filter .............. Full flow paper filter (cartridge type)
Starting system .............. Electric starting with starter
Emission Level ............... Tier 4
Electrical system rating, Volts ............... 12
Fuel System .............. Fuel injection
Fuel injection pump .............. Bosch MD type mini pump
Injection nozzle .............. Bosch "Throttle" type
Governor type .............. All speed mechanical governor
Overall Length, mm (in) .............. 338 (13.3)
Overall Width, mm (in) .............. 386 (15.2)
Overall Height, mm (in) .............. 564 (22.2)
Dry weight, kg (lbs.) .............. 53.1 (117)
Cylinder Liner I.D .............. 67.000-67.019 mm (2.6378-2.6385 in)
Cylinder Liner (Oversize 0.25 mm) I.D .............. 67.250-67.269 mm (2.6477-2.6483 in)
Crankshaft Journal to Bearing 1 Clearance .............. 0.0340-0.106 mm (0.00134-0.00417 in)
Crankshaft Journal O.D .............. 39.934-39.950 mm (1.5722-1.5728 in)
Crankshaft Bearing 1 I.D .............. 39.984-40.040 mm (1.5742-1.5763 in)
Crankshaft Journal to Bearing 2 Clearance (Flywheel) .............. 0.028-0.059 mm (0.001-0.0023 in)
Crankshaft Journal O.D .............. 43.934-43.950 mm (1.7297-1.7303 in)
Crankshaft Bearing 2 I.D .............. 43.978-43.993 mm (1.7315-1.7320 in)
Crankshaft Journal to Bearing 3 Clearance Center) .............. 0.028-0.059 mm (0.0011-0.0023 in)
Crankshaft Journal O.D .............. 39.934-39.950 mm (1.5722-1.5728 in)
Crankshaft Bearing 3 I.D .............. 39.978-39.993 mm (1.5740-1.5745 in)
Crankshaft Side Clearance 0.15-0.31 mm (0.0059-0.012 in)
Piston Ring Gap, Top Ring .............. 0.15-0.30 mm (0.0059-0.011 in)
Piston Ring Gap, Second Ring .............. 0.30-0.45 mm (0.012-0.017 in)
Piston Ring Gap, Oil Ring .............. 0.15-0.30 mm (0.0059-0.011 in)
Connecting Rod Alignment .............. 0.05 mm (0.002 in)
Valve Clearance (Cold) .............. 0.145-0.185 mm (0.00571-0.00728 in)
Compression Pressure .............. 2.85-3.23 MPa (413-469 psi)
Top Clearance .............. 0.50-0.70 mm (0.020-0.027 in)
Valve Face (Intake and Exhaust), Angle .............. 0.79 rad (45 deg)
Valve Seat (Intake and Exhaust), Angle .............. 0.79 rad (45 deg)
Valve Seat (Intake and Exhaust), Width .............. 2.12 mm (0.0835 in)
Intake Valve Timing, Open .............. 0.35 rad (20 deg) before T.D.C
Intake Valve Timing, Close .............. 0.79 rad (45 deg) after B.D.C
Exhaust Valve Timing, Open .............. 0.87 rad (50 deg) before B.D.C
Exhaust Valve Timing, Close .............. 0.26 rad (15 deg) after T.D.C
Tappet to Tappet Guide Oil Clearance .............. 0.016-0.052 mm (0.00063-0.0020 in)
Tappet O.D .............. 17.966-17.984 mm (0.70733-0.70803 in)
Tappet Guide I.D .............. 18.000-18.018 mm (0.70867-0.70937 in)
Camshaft Side Clearance .............. 0.15-0.31 mm 0.0059-0.012 in)
Cylinder bore inside diameter, mm (in) .............. 67.000-67.019 (2.6378-2.6385)
Cylinder compression, psi (MPa) .............. 413-469 (2.85-3.23)
Cylinder head (max out of flatness), mm (in) .............. 0.05 (0.002)
Engine Oil Pressure At Rated Speed .............. 197-441 kPa (28.5-64.0 psi)
Injection timing, deg (rad) .............. 21 (0.37) before T.D.C.
Injection pressure, MPa (psi) .............. 13.73 (1991)
Intake valve clearance (Cold), mm (in) .............. 0.145-0.185 (0.0057-0.0072)
Exhaust valve clearance (Cold), mm (in) .............. 0.145-0.185 (0.0057-0.0072)
Engine oil type .............. SAE 10W-30, 15W-40
Oil classification (API service) .............. CF, CF-4, or CG-4
Engine oil capacity, L (qts) .............. 2.1 (2.2)
Coolant capacity, L (qts) .............. 1.9 (2.0)
Oil filter part number .............. HH150-32430 or HH152-32432
Fuel filter part number .............. 12581-43012
Air filter part number .............. 15852-11082
Check Fuel Hoses and Clamps .............. Every 50 hours
Change Engine Oil .............. Every 100 hours
Clean Air Filter .............. Every 100 hours
Clean Fuel Filter .............. Every 100 hours
Check Battery .............. Every 100 hours
Check Drive Belt Tension .............. Every 100 hours
Replace Engine Oil Filter .............. Every 200 hours
Check Intake Air Line .............. Every 200 hours
Replace Fuel Filter .............. Every 400 hours
Clean Radiator Fins .............. Every 600 hours
Replace Drive Belt .............. Every 600 hours
Replace Air Filter .............. Every 600 hours
Check and Adjust Valve Clearance .............. Every 800 hours
Check Injection Nozzle .............. Every 1500 hours
Check Injection Timing .............. Every 1500 hours
Check Fuel Injection Pump .............. Every 1500 hours
Change Engine Coolant .............. Every 2000 hours
Cylinder head cover screw (M6x1), Nm (lb-ft) .............. 9.81-11.2 (7.24-8.31)
Cylinder head screw (M8 x1.25), Nm (lb-ft) .............. 38-42 (28-31)
Flywheel screw (M10x1.25), Nm (lb-ft) .............. 54-58 (40-43)
Injection pipe retaining nut (M12x1.5), Nm (lb-ft) .............. 25-34 (18-25)
Overflow pipe retaining nut (M12x1.5), Nm (lb-ft) .............. 20-24 (15-18)
Nozzle holder assembly (M20x1.5), Nm (lb-ft) .............. 49-68 (37-50)
Glow plug (M8x1), Nm (lb-ft) .............. 7.9-14 (5.8-10)
Rocker arm bracket nut (M6x1), Nm (lb-ft) .............. 9.81-11.2 (7.24-8.31)
Fan drive pulley screw (M12x1.5), Nm (lb-ft) .............. 117.7-127.5 (86.8-94)
Idle gear shaft mounting screw M6x1), Nm (lb-ft) .............. 9.8-11.3 (7.2-8.3)
Oil pump mounting screw M8x1.25), Nm (lb-ft) .............. 17.7-21.6 (13-15.9)
Connecting rod screw M7x0.75), Nm (lb-ft) .............. 26.5-30.4 (19.5-22.4)
Bearing case cover mounting screw M6x1), Nm (lb-ft) .............. 9.8-11.3 (7.2-8.3)
Alternator’s pulley nut, Nm (lb-ft) .............. 58.3-78.9 (43-58.2)
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