The Kubota D1005-T is a 1.1 L (1,123 cc, 68.5 cu-in) straight-three, water-cooled turbocharged diesel engine from Kubota 05-series.
The D1105-T 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 22.5:1 for the early version (D1105T-B(E)) or 23.0:1 for the later versions (EPA Tier 2, 3, 4). The cylinder bore and the piston stroke are 78.0 mm (3.07 in) and 78.4 mm (3.09 in), respectively.
The Kubota D1105-T diesel engine produced up to 32.0 PS (23.5 kW; 31.5 HP) at 3,000 rpm of horsepower and 86.0 N·m (8.8 kg·m, 63.4 ft·lb) at 2,000 rpm of torque.
The breakdown of the engine code is as follows:
- D – 3-cylinders
- 11 – Approximate displacement 1,100 cc
- 05 – 05-series
- T – Turbocharged
General information
| Engine Specifications | |
| Engine code | D1105-T |
| Layout | Straight-3, vertical diesel engine |
| Fuel type | Diesel |
| Production | – |
| Displacement | 1.1 L, 1,123 cm3 (68.5 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 | Turbocharged |
| Max. Horsepower | 32.0 PS (23.5 kW; 31.5 HP) at 3,000 rpm* |
| Torque output | 86.0 N·m (8.8 kg·m, 63.4 ft·lb) at 2,000 rpm* |
| Firing order | 1-2-3 |
| Dimensions (L x W x H): | – |
| Weight | 97.0 kg (213.8 lbs) |
*-may be differ depending on engine modification
Cylinder block
| Cylinder block | ||
| Compression ratio: | 22.5:1 or 23.0:1 | |
| 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 | 0.200-0.350 mm (0.0079-0.0138 in) |
| Second | 0.400-0.550 mm (0.0157-0.0217 in) | |
| Oil | 0.300-0.550 mm (0.0118-0.0217 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 |
D1105-T-B(E): 2.84 to 3.23 MPa, 29.0 to 33.0 kgf/cm2, 412 to 469 psi Other: 3.14 to 3.53 MPa, 32.0 to 36.0 kgf/cm2, 456 to 512 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.) |
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