The Kubota D1005 is a 1.0 L (1,001 cc, 61.1 cu-in) straight-three, water-cooled naturally aspirated diesel engine from Kubota 05-series.
The Kubota D1005 engine has a spherical type сombustion сhamber with glow plug, Bosch MD type mini fuel injection pump, and mini injection nozzle. The compression ratio rating is 22.0:1 for the early version (D1005-B(E)) or 24.0:1 for the later versions (EPA Tier 2, 3, 4). The cylinder bore and the piston stroke is 76.0 mm (2.99 in) and 73.6 mm (2.9 in), respectively. The D1005 diesel engine produced up to 26.4 PS (19.4 KW; 26.0 HP) at 3,600 rpm of horsepower and 58.4 N·m (6 kg·m, 43 ft·lb) at 2,400 rpm of torque.
The breakdown of the engine code is as follows:
- D – 3-cylinders
- 10 – Approximate displacement 1000 cc
- 05 – 05-series
General information
| Engine Specifications | |
| Engine code | D1005 |
| Layout | Straight-3, vertical diesel engine |
| Fuel type | Diesel |
| Production | – |
| Displacement | 1.0 L, 1,001 cm3 (61.1 cu in) |
| Fuel injection pump | Bosch MD type mini fuel injection pump |
| Fuel nozzle | Mini nozzle |
| 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 | 26.4 PS (19.4 KW; 26.0 HP) at 3,600 rpm* |
| Torque output | 58.4 N·m (6 kg·m, 43 ft·lb) at 2,400 rpm* |
| Firing order | 1-2-3 |
| Dimensions (L x W x H): | 498 x 397 x 609 mm (19.6 x 15.6 x 24 in) |
| Weight | 95 kg (210 lbs) |
*-may be differ depending on engine modification
Cylinder block
| Cylinder block | ||
| Compression ratio: | 22.0:1 or 24.0:1 | |
| Cylinder bore: | 76.0 mm (2.99 in) | |
| Piston stroke: | 73.6 mm (2.9 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
| Cylinder inner diameter: | 76.000-76.019 mm (2.9921-2.9929 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 | D1005-B(E): 2.84 to 3.23 MPa, 29.0 to 33.0 kgf/cm2, 412 to 469 psi Other: 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 | 101 mm: 4.0 L (4.23 US. qt, 3.52 Imp. qt.) 125 mm: 5.1 L (5.40 US. qt, 4.50 Imp. qt.) |
| Fuel system | |
| Fuel injection pump: | Bosch MD type mini fuel injection pump |
| Injection nozzle: | Mini Nozzle (DNOPD) |
| Firing order: | 1-2-3 |
| Injection pressure: | 13.73 MPa (140 kgf/cm2, 1,991 psi) |
| Cooling system | |
| Coolant capacity | 3.0 L (3.2 US.qts, 2.6 Imp. qts) |
| Electrical system | |
| Battery: | 12V, 60Ah or equivalent |
| Starting motor: | D1005-B(E): 12 V, 0.9 kW D1005-E2B: 12 V, 1.0 kW D1005-E3B, -E4B: 12 V, 1.2 kW |
| Starter mica undercut: | 0.5-0.8 mm (0.0197-0.0315 in) |
| Starter brush length: | 13.0 mm (0.5118 in) |
| Charging alternator: | D1005-B(E): 12 V, 150 W D1005-E2B: 12 V, 360 W D1005-E3B, -E4B: 12 V, 480 W |
| Alternator (no-load voltage): | AC 13,5V at 5,000 rpm |
Author:
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Best regards