The Kubota V1505 is a 1.5 L (1,498 cc, 91.4 cu-in) straight-four, water-cooled naturally aspirated diesel engine from Kubota 05-series.
The V1505 engine has a spherical type сombustion сhamber with glow plug, Bosch MD type mini fuel injection pump, and mini injection nozzle (DNOPD). The compression ratio rating is 24.0:1. The cylinder bore and the piston stroke are 78.0 mm (3.07 in) and 78.4 mm (3.09 in), respectively.
The Kubota V1505 diesel engine produces 34.0 PS (25.0 KW; 33.5 HP) at 3,000 rpm of net horsepower for V1505-E2B and V1505-E3B, or 24.1 PS (17.7 KW; 23.7 HP) at 2,300 rpm of net horsepower for V1505-E4B.
The breakdown of the engine code is as follows:
- V – 4-cylinders
- 15 – Approximate displacement 1,500 cc
- 05 – 05-series
General information
| Engine Specifications | |
| Engine code | V1505-E2B, V1505-E3B, V1505-E4B |
| Layout | Straight-4, vertical diesel engine |
| Fuel type | Diesel |
| Production | – |
| Displacement | 1.5 L, 1,498 cm3 (91.4 cu in) |
| Fuel injection pump | Bosch MD type mini fuel injection pump |
| Fuel nozzle | Mini nozzle (DNOPD) |
| Starting system | Electric starting with 12V starter |
| Starting support device | Glow plug in combustion chamber |
| Governor | All speed mechanical governor |
| Power adder | None |
| Max. Horsepower (net) |
V1505-E2B, V1505-E3B: 34.0 PS (25.0 KW; 33.5 HP) at 3,000 rpm V1505-E4B: 24.1 PS (17.7 KW; 23.7 HP) at 2,300 rpm |
| Torque output | – |
| Firing order | 1-3-4-2 |
| Dimensions (L x W x H): | 591 x 396 x 614 mm (23.3 x 15.6 x 24.2 in) |
| Weight | 110.0 kg (242.5 lbs) |
Cylinder block
| Cylinder block | ||
| Compression ratio: | 24.0:1 | |
| Cylinder bore: | 78.0 mm (3.07 in) | |
| Piston stroke: | 78.4 mm (3.09 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Cylinder inner diameter: | 78.00-78.019 mm (3.0709-3.0716 in) | |
| Piston skirt diameter | – | |
| Piston ring side clearance: | Second | 0.085-0.112 mm (0.0033-0.0044 in) |
| Oil | 0.020-0.055 mm (0.0008-0.0022 in) | |
| Piston ring end gap: | Top | 0.300-0.450 mm (0.0118-0.0177 in) |
| Second | 0.300-0.450 mm (0.0118-0.0177 in) | |
| Oil | 0.250-0.400 mm (0.0098-0.0157 in) | |
| Piston pin outer diameter | 22.002-22.011 mm (0.8662-0.8666 in) | |
| Crankshaft main journal diameter: |
1,2: 47.934-47.950 mm (1.8872-1.8878 in) 3: 51.921-51.940 mm (2.0442-2.0448 in) |
|
| Crankpin diameter: | 39.959-39.975 mm (1.5732-1.5738 in) | |
Cylinder head
| Cylinder head | ||
| Valve Arrangement: | OHV, gear drive | |
| Valves: | 6 (2 valves per cylinder) | |
| Valve head diameter: | INTAKE | – |
| EXHAUST | – | |
| Valve length: | INTAKE | 101.5 mm (3.99 in) |
| EXHAUST | 101.5 mm (3.99 in) | |
| Valve stem diameter: | INTAKE | 6.960-6.975 mm (0.274-0.2746 in) |
| EXHAUST | 6.960-6.975 mm (0.274-0.2746 in) | |
| Valve spring free length: | INTAKE | 37.0-37.5 mm (1.4567-1.4764 in) |
| EXHAUST | 37.0-37.5 mm (1.4567-1.4764 in) | |
| Camshaft lobe height: | INTAKE | 28.80 mm (1.1339 in) |
| EXHAUST | 29.00 mm (1.1417 in) | |
| Camshaft journal diameter: | 35.934-35.950 mm (1.4147-1.4154 in) | |
Maintenance data
| Valve clearance | |
| Intake valve | 0.145-0.185 mm (0.0057-0.0073 in) |
| Exhaust valve | 0.145-0.185 mm (0.0057-0.0073 in) |
| Compression pressure | |
| Standard | 3.73 to 4.11 MPa, 38.0 to 42.0 kgf/cm2, 541 to 597 psi |
| Oil system | |
| Recommended engine oil | CF or higher |
| SAE Viscosity Number | SAE 10W-30, 10W-40 |
| Engine oil capacity | 6.7 liters (7.1 US.qts, 5.9 Imp. qts) |
| Fuel system | |
| Fuel injection pump: | Bosch MD type mini fuel injection pump |
| Injection nozzle: | Mini Nozzle (DNOPD) |
| Firing order: | 1-3-4-2 |
| Injection pressure: | 13.73 to 14.70 MPa; 140.0 to 150.0 kgf/cm2; 1992 to 2133 psi |
| Cooling system | |
| Coolant capacity | 5.0 liters (5.3 US.qts, 4.4 Imp. qts) |
| Electrical system | |
| Battery: | 12V, 75Ah or equivalent |
| Starting motor: | 12 V, 1.2 kW |
| Charging alternator: |
V1505-B(E), -E2B: 12 V, 360 W V1505-E3B, -E4B): 12 V, 480 W |
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