TYPE: Diesel engine is single cylinder ,4 stroke, water cooled, vertical, cold starting totally enclosed.

COMBUSTION: Combustion chamber is open type .This has cast iron piston in LR-4 type and aluminum alloy piston in LR-7 type engine, Respectively having four compression and one oil ring in LR-4 type and three compression and two oil rings in LR-7 type engine.

BEARINGS: Main bearings are taper roller bearings. Large and bearings of C. rod is of steel and white metal, Rockers and C. rod small end bush are of gun metal.

LUBRICATION: Large and bearings and main bearings are lubricated by splash lubrication in LR-4 model engine and by reciprocating lub. oil pump in LR-7 model engine. Camshaft bush is also lubricated by splash, Rocker bushes are lubricated by cup fed lubrication.

SPEED GOVERNOR: Speed of engine is controlled by governor. It is fully closed. It is fixed on camshaft gear wheel.

BALANCING: Flywheel is also balanced to increase the life of engine and the parts.

COOLING SYSTEM: Engine is cooled by radiator or water tank or run through system.

EXHAUST SYSTEM: One pepper pot type silencer is fitted to reduce the sound .

AIR FILTER: Oil bath air cleaner is fitted to filter the air.

STARTING: Engine is started by handle manually.


ROTATION: Clockwise when looking at flywheel with exhaust on left hand side.

VERY IMPORTANT INSTRUCTION: The engine efficiency & fuel consumption is better if the water outlet temperature is maintained between 50 degree to 70 degree. Please run the engine at specified temperature.

STANDARD EQUIPMENT: Starting Handle, five wrenches, silencer, screw driver, air cleaner, Oil can. Pulley.