The Toyosha S107 is a 1.1 L (1070 cc, 65.3 cu·in) natural aspirated two-cylinders four-stroke liquid-cooled internal combustion small diesel engine, manufactured by Japanese company Hinomoto under the Toyosha brand for general-purpose applications.
The Toyosha S107 engine has two cylinders, incorporate overhead valves, an indirect injection system, and an electric starter. The engine used a single-stage dry air cleaner, forced circulation liquid cooling system, and glow plugs for starting aid.
This engine produced 20.3 PS (14.9 kW; 20.0 HP) of maximum horsepower.
|Engine type||4-stroke, OHV, two-cylinders|
|Displacement||1,070 cm3, (65.3 cu·in)|
|Max. horsepower||20.3 PS (14.9 kW; 20 HP)|
|Air cleaner||Single stage, dry element|
|Lubricating system||Forced splash|
|Fuel system||Inderect injection|
|Fuel used||Diesel fuel|
|Starting system||Grow plugs|
|Stoping system||Ignition primary circuit ground|
Cylinder Block and Head
Cylinder bore and piston stroke are 88.0 mm (3.46 in) and 88.0 mm (3.46 in), respectively. The cylinder head is a one-piece alloy cast-iron casting as is the engine block and no cylinder sleeves are used. The pistons are aluminum alloy casting. The crankshaft is supported by three main bearings. Grow plugs located in the precombustion swirl chambers of the head provide aid for cold starting.
|Cylinder bore:||88.0 mm (3.46 in)|
|Piston stroke:||88.0 mm (3.46 in)|
|Number of piston rings (compression / oil):||2/1|
|Number of main bearings:||3|
|Crankshaft center distance:||44 mm (1.73 in)|
|Valves:||2 per cylinder (4 valves in total)|
|Tightening torque settings|
|Cylinder head bolt torque:||88-108 Nm; 8.8-10.8 kg·m; 65-80 ft·lb|
|Connecting rod cap torque:||49-58 Nm; 4.9-5.8 kg·m; 36-43 ft·lb|
|Main bearing cap bolt:||59-78 Nm; 5.9-7.8 kg·m; 43-57 ft·lb|
The diesel oil (API Service Classification CC or CD) with a viscosity of SAE 10W-30 is recommended for the S107, refilling oil capacity is 3.7 L (3.91 US. qt, 3.26 Imp. qt.). The valve clearance is 0.30 mm (0.0118 in) for intake valves and 0.35 mm (0.0138 in) for exhaust valves.
|Intake valve clearance (COLD):||0.30 mm (0.0118 in)|
|Exhaust valve clearance (COLD):||0.35 mm (0.0138 in)|
|Lubrication system:||Forced splash|
|Oil type:||Diesel oil (API Service Classification CC or CD)|
|Recommended oil:||SAE 10W-30|
|Oil capacity:||3.7 L (3.91 US. qt, 3.26 Imp. qt.)|
|Massey Ferguson 205||1978-1984|
|Massey Ferguson 205-4||1978-1984|