Shibaura LEK752C

Shibaura LEK752CThe Shibaura LEK752C 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 LEK752C 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 LEK752C diesel engine produced 13.2 PS (9.7 KW; 13.0 HP) at 2,700 rpm of net horsepower and 36.2 Nm (3.69 kg·m; 26.72 lbf·ft) at 2,000 rpm of peak torque.

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 codeLEK752C
LayoutStraight-2, vertical diesel engine
Fuel typeDiesel fuel No.2-D
Displacement0.7 L, 706 cm3 (43.1 cu in)
Max. Horsepower (net)13.2 PS (9.7 KW; 13.0 HP) at 2,700 rpm
Torque output36.2 Nm (3.69 kg·m; 26.72 lbf·ft) at 2,000 rpm
Injection typeIndirect injection
Cooling systemLiquid-cooled
Fuel systemFuel injection pump
Starting systemElectric starting
Starting support deviceGlow plug in combustion chamber
Power adderNone
Firing order2-1

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:INTAKE45°
Valve face angle:INTAKE45°

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:128.0 Nm (13.1 kgf·m; 94.5 ft·lb)

Maintenance data

Engine speed
Governed speed Low Idle: 750-850 rpm
High Idle: 2,750-2,800 rpm
Valve clearance
Intake valve0.20 mm (0.008 in)
Exhaust valve0.20 mm (0.008 in)
Injector opening pressure
Standard11,760 kPa (1705 psi)
Injection timing
Standard20-21° BTDC
Oil system
Recommended engine oilCD or CE
SAE Viscosity NumberSAE 10W-30, 10W-40
Engine oil capacity3.3 liters (3.5 US.qts, 2.9 Imp. qts)
Electrical system
Ground polarity:Negative


The Shibaura LEK752C engine is used on the following tractors

ModelYears Produced
Ford 11101983-1986
Shibaura SE1340
Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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