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2.0 Spark Ignition.   
2.0 Spark Ignition. from Marshalls

The EST gaseous fuel engine is based on an automotive engine manufactured by VOLKSWAGEN under the engine code BEF.

The engine is a liquid cooled four cylinder in line engine with a specific gaseous fuel intake system with an integral electric throttle system.

Direct valve actuation via an overhead camshaft driven by a toothed belt.

Maintenance free valve gear using hydraulic tappets. Electric throttle system operated by an engine fitted Engine Control Unit.

Pressure circulation with a gear wheel driven oil pump with an oil filter positioned in the main flow. Oil cooling is carried out via an oil-coolant heat exchanger.
Additional Information
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Gaseous 2.0 Industrial Engine
Displacement 1984cm2
Bore/stroke 82,5 / 92,8mm
Compression 10.5 ratio
Power 38-42kW at 2800rpm
Rated power (propane) 38-42 kW@2800 / [56,5 kW@4000]
Torque (propane) 140-143 Nm@2100-2400 / [146 Nm@2400]
Firing order 1-3-4-2
Crankshaft in total kgm² - 0.033
Flywheel (single mass) kgm² - 0.101
Weight 140kgs
Technology
Control unit Engine mounted unit with CAN
Engine Electrical Equipment
Alternator 12v 90kW
Starter 12v / 1.8kW
Fuel
Fuel specification Propane & Natural Gas
Lubrication system
Pressure lubrication system
Cooling system
Sealed cooling system.
Over pressure system with separate expansion tank and excess pressure valve
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