Kubota V1502 Specifications
| Engine Model: Kubota V1502 |
| Engine Type: 4-cycle vertical 4-cylinder liquid-cooled diesel |
| Total Displacement: 90.7 cu.in (1.49 L) |
| Rated Engine Power: 34 Hp (25.4 kW) at 2800 rpm |
| Aspiration Type: Naturally aspirated |
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Engine Model ............... Kubota V1502
Engine Type ............... 4-Stroke 4-cylinder liquid-cooled diesel
Number of Cylinders ............... 4
Total displacement, L (cu.in) ............... 1.49 (90.74)
Cylinder Bore, mm (in) ............... 76.0 (2.99)
Piston Stroke, mm (in) ............... 82.0 (3.23)
Rated Engine Power, hp (kW) ............... 34.0 (25.4)
Rated Engine Speed, rpm ............... 2800
Maximum Engine Speed, rpm ............... 3000
Idle Speed, rpm ............... 800
Maximum Torque, Nm (lb-ft) ............... 95.2 (70.5)
Torque Speed, rpm ............... 1600
Aspiration Type ............... Naturally aspirated
Compression Ratio ............... 21:1
Firing Order ............... 1-3-4-2
Combustion Chamber ............... Spherical type
Direction of Rotation ............... Counter-clockwise
Lubricating System ............... Forced lubrication by pump
Oil Filter Type ............... Full flow cartridge, paper element
Engine Oil Capacity, L (qts) ............... 8.0 (8.5)
Starting System ............... Electric starting with starter
Electrical System Rating, Volts ............... 12
Fuel system ............... Fuel injection
Fuel Injection Pump ............... Bosch K type mini
Injection Nozzle ............... DN12 SD12
Governor Type ............... Centrifugal ball, mechanical
Overall Length, mm (in) ............... 662 (26.1)
Overall Width, mm (in) ............... 512 (20.2)
Overall Height, mm (in) ............... 632 (24.9)
Dry Weight, kg (lbs) ............... 175.7 (387)
Cylinder liner I.D (Standard) ............... 76.000-76.019 mm (2.9921-2.9929 in)
Cylinder liner I.D (Wear limit) ............... 76.15 mm (2.998 in)
Crankshaft alignment ............... 0.02 mm (0.0008 in)
Crankshaft journal O.D ............... 51.921-51.940 mm (2.0441-2.0449 in)
Crankshaft bearing I.D ............... 51.980-52.039 mm (2.0465-2.0488 in)
Crankshaft journal to bearing clearance ............... 0.040-0.118 mm (0.0016-0.0046 in)
Crankpin O.D ............... 43.959-43 975 mm (1.7307-1.7313 in)
Crankpin bearing I.D ............... 44.010-44.052 mm (1.7327-1.7343 in)
Crankpin to bearing clearance ............... 0.035-0.093 mm (0.0014-0.0037 in)
Crankshaft end play ............... 0.15-0.31 mm (0.0059-0.0122 in)
Connecting rod small end bushing I.D ............... 23.025-23.040 mm (0.9065-0.9071 in)
Connecting rod small end parent bore diameter ............... 26.000-26.013 mm (1.0236-1.0241 in)
Connecting rod alignment ............... 0.05 mm (0.002 in)
Cylinder head surface flatness ............... 0.05 mm (0.0020 in)
Cylinder head gasket thickness ............... 1.30-1.60 mm (0.0512-0.0630 in)
Top clearance ............... 0.7-0.9 mm (0.0276-0.0354 in)
Valve seat width ............... 2.1 mm (0.0827 in)
Valve seat angle ............... 0.785 rad (45 deg)
Valve stem O.D (Intake) ............... 7.960-7.975 mm (0.3134-0.3140 in)
Valve stem O.D (Exhaust) ............... 7.960-7.975 mm (0.3134-0.3140 in)
Valve guide I.D (Intake) ............... 8.015-8.030 mm (0.3156-0.3161 in)
Valve guide I.D (Exhaust) ............... 8.015-8.030 mm (0.3156-0.3161 in)
Valve stem to guide clearance ............... 0.04-0.07 mm (0.0016-0.0028 in)
Valve recessing ............... 1.1-1.3 mm (0.0433-0.0512 in)
Valve clearance (Intake) ............... 0.18-0.22 mm (0.0071-0.0087 in)
Valve clearance (Exhaust) ............... 0.18-0.22 mm (0.0071-0.0087 in)
Valve spring free length ............... 41.7-42.2 mm (1.6417-1,6614 in)
Rocker arm shafts O.D ............... 13.973-13.984 mm (0.5501-0.5506 in)
Rocker arm bushing I.D ............... 14.002-14.043 mm (0.5513-0.5529 in)
Rocker arm shafts to bushing clearance ............... 0.018-0.070 mm (0.0007-0.0028 in)
Camshaft bearing journal O.D ............... 39.934-39.950 mm (1.5722-1.5728 in)
Camshaft bearing I.D ............... 40.000-40.025 mm (1.5748-1.5758 in)
Camshaft journal to bearing clearance ............... 0.050-0.091 mm (0.0020-0.0036 in)
Camshaft alignment ............... 0.01 mm (0.00039 in)
Cam height (Intake) ............... 33.36-33.31 mm (1.3134-1.3114 in)
Cam height (Exhaust) ............... 33.36-33.31 mm (1.3134-1.3114 in)
Piston pin O.D ............... 23.002-23.011 mm (0.9055-0.9059 in)
Piston pin bore I.D (Standard) ............... 23.000-23,013 mm (0,9055-0.9060 in)
Piston pin bore I.D (Wear limit) ............... 23.053 mm (0.9076 in)
Piston pin to small end bushing clearance ............... 0.014-0.038 mm (0.0006-0.0015 in)
Top ring gap ............... 0.30-0.45 mm (0.012-0.017 in)
Second ring gap ............... 0.30-0.45 mm (0.012-0.017 in)
Oil ring gap ............... 0.25-0.45 mm (0.0099-0.017 in)
Second ring groove clearance ............... 0.0930-0.120 mm (0.00367-0.00472 in)
Oil ring groove clearance ............... 0.020-0.052 mm (0.00079-0.0020 in)
Cylinder bore inside diameter, mm (in) ............... 76.000-76.019 (2.9921-2.9929)
Cylinder compression, kPa (psi) ............... 2240-3200 (325-463)
Cylinder head (max out of flatness), mm (in) ............... 0.05 (0.002)
Intake valve clearance (Cold), mm (in) ............... 0.18-0.22 (0.0071-0.0087)
Exhaust valve clearance (Cold), mm (in) ............... 0.18-0.22 (0.0071-0.0087)
Injection pressure, kPa (psi) ............... 13700-14700 (1991-2133)
Injection timing, deg (rad) ............... 23-25 (0.401-0.436) before TDC
Engine oil pressure (Idle Speed), kPa (psi) ............... 98.1 (14.2)
Engine oil pressure (Rated Speed), kPa (psi) ............... 294-441 (43-64)
Injection Pressure, kPa (psi) ............... 13700-14700 (1991-2133)
Injection Timing, deg (rad) ............... 23-25 (0.401-0.436) before TDC
Engine Oil Type ............... SAE20, SAE30, 10W-30
Oil Classification (API Service) ............... CC or CD
Engine Oil Capacity, L (qts) ............... 8.0 (8.5)
Oil filter part number ............... HH164-32430
Fuel filter part number ............... 15521-43160
Air filter part number ............... 70000-11080
Service Air Cleaner ............... Every 100 hours
Check Battery ............... Every 100 hours
Check Belt Tension ............... Every 100 hours
Change Engine Oil ............... Every 200 hours
Change Oil Filter ............... Every 400 hours
Replace Fuel Filter ............... Every 400 hours
Replace Fan Belt ............... Every 400 hours
Clean Radiator Fins ............... Every 400 hours
Check Valve Clearance ............... Every 800 hours
Check Fuel Injection Pump ............... Every 1000 hours
Replace Air Cleaner ............... Every 1000 hours
Change Engine Coolant ............... Every 1500 hours
Cylinder Head (Bolt and Washer) ............... 81 Nm (60 ft-lb)
Cylinder Head (Flanged Bolt) ............... 94.5 Nm (70 ft-lb)
Main Bearing Case (Bolt and Washer) ............... 33.8 Nm (25 ft-lb)
Main Bearing Case (Flanged Bolt) ............... 40.5 Nm (30 ft-lb)
Main Bearing Case Retainer (Bolt and Washer) ............... 67.5 Nm (50 ft-lb)
Main Bearing Case Retainer (Flanged Bolt) ............... 73 Nm (54 ft-lb)
Flywheel Bolt ............... 101.3 Nm (75 ft-lb)
Connecting Rod (Non-flanged Bolt) ............... 40.5 Nm (30 ft-lb)
Connecting Rod (Flanged Bolt) ............... 47.3 Nm (35 ft-lb)
Rocker Arm Cover Bolt ............... 8.1 Nm (6 ft-lb)
Rocker Arm Bracket ............... 27 Nm (20 ft-lb)
Nozzle Holder Assembly ............... 47.3 Nm (35 ft-lb)
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