Specifications, Service and Repair of Farm and Lawn Tractors

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Kubota D600 Engine

Kubota D600 Engine Specifications

Engine Model ................ Kubota D600
Engine Type ................ Vertical, water-cooled, 4 cycle diesel
Number of Cylinders ................ 3
Displacement, cu in (L) ................ 36.6 (0.601)
Engine Bore, in (mm) ................ 2.52 (64.0)
Engine Stroke, in (mm) ................ 2.45 (62.2)
Aspiration ................ Naturally aspirated
Rated Engine Power, hp (kW) ................ 14.0 (10.3)
Rated Engine Speed, rpm ................ 3200
Firing Order ................ 1-2-3
Fuel System ................ Injection pump
Lubrication System ................ Forced lubrication by trochoid pump
Oil filter type ................ Full flow paper filter (cartridge)
Cooling System ................ Water with pressurized radiator
Pre-Heating ................ Glow plugs
Coolant Capacity, qts (L) ................ 2.2 (2.1)
Electrical System Rating, Volts ................ 12
Starting Motor ................ 12V, 0.7 kW
Battery Rating ................ 12V, 35 AH

Kubota D600 Maintenance Data

Cylinder Block and Valves

Cylinder bore inside diameter (maximum), in (mm) ................ 2.5255 (64.139)
Cylinder compression, psi (MPa) ................ 325-450 (2.24-3.10)
Cylinder head (max. out of flatness), in (mm) ................ 0.002 (0.05)
Intake valve clearance (Cold), in (mm) ................ 0.007 (0.18)
Exhaust valve clearance (Cold), in (mm) ................ 0.007 (0.18)

Engine Oil and Filters

Engine oil type ................ SAE30, SAE 10W-30
API service classification ................ CC or CD
Engine oil capacity, qts (L) ................ 3.2 (3.0)
Oil filter part number ................ HH152-32432
Fuel filter part number ................ 1T021-43560
Air filter part number ................ 12581-43012/1T021-43560

Service Intervals

Change Engine Oil ................ Every 75 hours
Service Air Filter ................ Every 100 hours
Clean Fuel Filter ................ Every 100 hours
Change Engine Oil Filter ................ Every 150 hours
Replace Air Filter ................ Every 200 hours
Check and Adjust Valve Clearance ................ Every 300 hours
Replace Fuel Pre-Filter ................ Every 500 hours

Kubota D600 Service Specifications

Cylinder Block

Cylinder Liner Inside Diameter (Minimum), in (mm) ................ 2.5196 (63.989)
Cylinder Liner Inside Diameter (Maximum), in (mm) ................ 2.5255 (64.139)
Piston Outside Diameter, in (mm) ................ 2.516 (63.906)
Piston Ring End Gap, in (mm) ................ 0.017-0.035 (0.431-0.886)
Crankshaft End Play, in (mm) ................ 0.012 (0.304)
Crankshaft Journal Outside Diameter, in (mm) ................ 1.5722-1.5728 (39.934-39.950)
Crankshaft Bearing Inside Diameter, in (mm) ................ 1.5715-1.5764 (39.984-40.040)
Crankshaft Journal to Bearing Oil Clearance, in (mm) ................ 0.0013-0.0042 (0.034-0.106)
Crankpin to Crankpin Bearing Oil Clearance, in (mm) ................ 0.0008-0.0020 (0.020-0.051)
Crankpin Outside Diameter, in (mm) ................ 1.3370-1.3376 (33.959-33.975)
Crankpin Bearing Inside Diameter, in (mm) ................ 1.3389-1.3390 (33.995-34.010)

Valves

Intake Valve Clearance (Cold), in (mm) ................ 0.0057-0.0073 (0.145-0.185)
Exhaust Valve Clearance (Cold), in (mm) ................ 0.0057-0.0073 (0.145-0.185)
Exhaust Valve Head Diameter, in (mm) ................ 0.89 (22.50)
Intake Valve Head Diameter, in (mm) ................ 1.03 (26.00)
Exhaust Valve Stem Outside Diameter, in (mm) ................ 0.2354 (5.980)
Intake Valve Stem Outside Diameter, in (mm) ................ 0.2354 (5.980)
Intake Valve Guide Inside Diameter, in (mm) ................ 0.2372 (6.030)
Exhaust Valve Guide Inside Diameter, in (mm) ................ 0.2372 (6.030)
Exhaust Valve Seat Angle, deg ................ 45
Intake Valve Seat Angle, deg ................ 45

Kubota D600 Tightening Torque Specs

Cylinder Head Bolt (M8x1.25), Nm (lb-ft) ................ 42 (32)
Main Bearing Case Bolt 2 (M7x1.0), Nm (lb-ft) ................ 26-30 (19-22)
Main Bearing Case Bolt 1 (M6x1.0), Nm (lb-ft) ................ 12.5-15.5 (9.5-11.5)
Connecting Rod Bolt (M7x1.0), Nm (lb-ft) ................ 26 (19)
Flywheel Bolt (M10x1.25), Nm (lb-ft) ................ 59 (44)
Rocker Arm Bracket Bolt (M6x1.0), Nm (lb-ft) ................ 11.5 (8.3)
Fan Drive Pulley Bolt (M12x1.5), Nm (lb-ft) ................ 117 (86)
Oil Pump Mounting Bolt (M8x1.25), Nm (lb-ft) ................ 20 (15)

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KUBOTA TRACTORS SPECIFICATIONS

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KUBOTA ENGINES DATA AND SERVICE SPECS

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KUBOTA FRONT END LOADERS

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KUBOTA TRACTORS TROUBLESHOOTING
L235 L2501 L2550 L275 L3110
L3301 L35 L3710 L3901 L4310
L5030 M4700 M5700 M6040 M6800
M8200 M8540 M9000 MX5100 MX5200