The Shibaura LEK752C2 is a 706 cc (43.1 cu·in) straight-two, water-cooled naturally aspirated diesel engine manufactured by Shibaura.
A 75.0 mm (2.95 in) cylinder bore and 80.0 mm (3.15 in) piston stroke give the LEK752C2 diesel engine a total of 706 cc (43.1 cu·in) of displacement. The compression ratio rating is 23.0:1. This engine is equipped with glow plugs and dry type air cleaner.
The Shibaura LEK752C2 diesel engine produced 13.2 PS (9.7 KW; 13.0 HP) at 2,600 rpm of gross horsepower.
The breakdown of the engine code is as follows:
- LEK – Engine series
- 75 – 75.0 mm of cylinder bore
- 2 – Two cylinders
General information
| Engine Specifications | |
| Engine code | LEK752C2 |
| Layout | Straight-2, vertical diesel engine |
| Fuel type | Diesel fuel No.2-D |
| Production | – |
| Displacement | 0.7 L, 706 cm3 (43.1 cu in) |
| Max. Horsepower (gross) | 13.2 PS (9.7 KW; 13.0 HP) at 2,600 rpm |
| Torque output | – |
| Injection type | Indirect injection |
| Cooling system | Liquid-cooled |
| Fuel system | Fuel injection pump |
| Starting system | Electric starting |
| Starting support device | Glow plug in combustion chamber |
| Power adder | None |
| Firing order | 2-1 |
Cylinder block
| Cylinder block | ||
| Compression ratio: | 23.0:1 | |
| Cylinder bore: | 75.0 mm (2.95 in) | |
| Piston stroke: | 80.0 mm (3.15 in) | |
| Number of piston rings (compression / oil): | 2 / 1 | |
Cylinder head
| Cylinder head | ||
| Valve Arrangement: | – | |
| Valves: | 4 (2 valves per cylinder) | |
| Valve seat angle: | INTAKE | 45° |
| EXHAUST | 45° | |
| Valve face angle: | INTAKE | 45° |
| EXHAUST | 45° | |
Tightening torque
| Tightening torque specs | |
| Connecting rod caps: | 24.0-27.0 Nm (2.4-2.8 kgf·m; 17.7-19.9 ft·lb) |
| Crankshaft gear plate: | 46.0-54.0 Nm (4.7-5.5 kgf·m; 33.9-39.9 ft·lb) |
| Flywheel: | 343.0-441.0 Nm (35-45 kgf·m; 253.1-325.5 ft·lb) |
| Cylinder head: | 146.0-152.0 Nm (14.9-15.5 kgf·m; 107.7-112.2 ft·lb) |
Maintenance data
| Engine speed | |
| Governed speed |
Low Idle: 750-850 rpm High Idle: 2,750-2,800 rpm |
| Valve clearance | |
| Intake valve | 0.30 mm (0.012 in) |
| Exhaust valve | 0.30 mm (0.012 in) |
| Injector opening pressure | |
| Standard | 11,760 kPa (1705 psi) |
| Injection timing | |
| Standard | 23-24° BTDC |
| Oil system | |
| Recommended engine oil | CD or CE |
| SAE Viscosity Number | SAE 10W-30, 10W-40 |
| Engine oil capacity | 3.3 liters (3.5 US.qts, 2.9 Imp. qts) |
| Electrical system | |
| Volts: | 12V |
| Ground polarity: | Negative |
Applications
The Shibaura LEK752C2 engine is used on the following tractors
| Model | Years Produced |
| Ford 1100 | 1979-1982 |
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