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piston and connecting rod assembly

Push rods  these are used to push the rocker arm up and down by the action of cam shaft

oil filter the function is to clean the dirt particles present in the oil which is used for lubrication

Thermostat valve

Rocker arm it is used to move the valve (inlet valve and exhaust valve) up and down.

  Gear pump 

oil cooler these are the oil cooler used to cool the oil circulated for lubrication purpose.

cylinder head it holds the 2 valve ,in let valve and outlet valve and the fuel injector. swaraj engine cylinder head

Crank case The above diagram is a crank case of 3 cylinder engine,the function of crank case is to hold the crank shaft and the cam shaft.the above diagram is a swaraj tractor crankcase

Cam shaft The purpose of cam shaft is to control the inlet and outlet valve of the cylinder engine,in order to control the inlet air and exhaust gases.the abobe diagram consists of 3 cylinder engine.

This is a fuel injector pump for a 3 cylinder engine. bosch is the manufacturer of the fuel injector pump.