4-stroke, 4-cylinder inline diesel engine with indirect injection and a VE Bosch rotary injection pump. The engine includes an overhead camshaft, toothed belt distribution, single-plate clutch, 5-speed gearbox with reverse and differential, together with an alternator and thermostatic valve. The cutaway design highlights key systems, such as lubrication, fuel, and cooling. It operates electrically at 220 V ( 110 V), running at a reduced speed to allow observation of mechanical part operations.