The Hatz 1B40 is a 0.46 L (462 cc, 28.19 cu·in) natural aspirated single-cylinder four-stroke air-cooled internal combustion small diesel engine with a horizontal shaft, manufactured by Motorenfabrik Hatz GmbH & Co. KG for general-purpose applications.
The Hatz 1B40 engine has a single-cylinder, direct injection combustion system, light-alloy cylinder head, forged crankshaft, valve timing via rocker arm, pushrods, finger-follower, and camshaft. The Hatz 1B40 engine can be equipped with a recoil or electric starter (12V or 24V) and alternator (14V – 14A at 3,000 rpm; 7A at 1,500 rpm or 28V – 7A at 3,000 rpm or 4A at 1,500 rpm). The engine used pressurized lubrication with a fine filter in the main flow. The 1B40 is equipped with a 5.0 L (1.32 US. gal. 1.1 Imp. gal.) fuel tank.
This diesel engine produced from 5.2 PS (3.8 kW; 5.1 HP) at 1,500 rpm to 10.2 PS (7.5 kW; 10.1 HP) at 3,600 rpm of horsepower (ISO 1585) and 24.9 N·m (2.5 kg·m, 18.4 ft·lb) at 2,300 rpm of peak torque.
|Engine type||4-stroke, single-cylinder|
|Displacement||462 cm3, (28.19 cu·in)|
From 5.2 PS (3.8 kW; 5.1 HP) at 1,500 rpm
to 10.2 PS (7.5 kW; 10.1 HP) at 3,600 rpm
|Max. torque||24.9 N·m (2.5 kg·m, 18.4 ft·lb) at 2,300 rpm|
|Cooling system||Forced air|
|Lubricating system||Pressurized lubrication|
|Fuel system||Direct injection|
|Fuel tank capacity||5.0 L (1.32 US. gal. 1.1 Imp. gal.)|
|Starting system||Recoil or electric starter (12 V or 24 V )|
|Dimensions (L x W X H)||348 x 392 x 480 mm (13.7 x 15.4 x 18.9 in)|
With recoil starter: 48.0 kg (105.8 lbs)
With electric starter: 53.3 kg (115.7 lbs)
Cylinder Block and Head
Cylinder bore and piston stroke are 88.0 mm (3.46 in) and 76.0 mm (2.99 in), respectively. Compression ratio rating is 20.5:1.
|Cylinder bore:||88.0 mm (3.46 in)|
|Piston stroke:||76.0 mm (2.99 in)|
|Ring end gap (Top):||0.250-0.450 mm (0.0098-0.0177 in)|
|Ring end gap (Second):||0.250-0.450 mm (0.0098-0.0177 in)|
|Ring end gap (Oil):||0.250-0.450 mm (0.0098-0.0177 in)|
|Crankshaft center distance:||38 mm (1.495 in)|
The API – CF / CH-4, ACEA – B3 / E4 oil for engines without diesel oxidation catalyst (DOC) and a viscosity of SAE 5W-30, 10W-30 is recommended for the 1B40, refilling oil capacity is 1.5 L (1.59 US. qt, 1.32 Imp. qt.). For engines with a diesel oxidation catalyst (DOC) use ACEA E6. The valve clearance is 0.10 mm (0.004 in) for intake valves and 0.10 mm (0.004 in) for exhaust valves.
|Maximum speed:||3,600 rpm rpm|
|Intake valve clearance:||0.10 mm (0.004 in)|
|Exhaust valve clearance:||0.10 mm (0.004 in)|
|Lubrication system:||Pressurized lubrication|
With diesel oxidation catalyst (DOC): ACEA E6
Without diesel oxidation catalyst (DOC): CF/CH-4, ACEA: B3/E4
|Recommended oil:||SAE 5W-30, 10W-30|
|Oil capacity:||1.5 L (1.59 US. qt, 1.32 Imp. qt.)|
We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.
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