Page 166 - Mechanic Diesel - TT

MECHANIC DIESEL - CITS

Introduction: In I.C engine or E.C engine both engine have work crucial at high speed or low speed. Inside of
engine so many metallic parts also move in quick second of time, but there are also create a strong heat by a
friction as well as some parts also damage due to poor lubrication, for proper moving and crucial work there are
use lubrication system used in engines (in I.C and E.C). It is median of lubrication is oil. Due to high rpm engine
have need a strong lubrication in quick times therefore, at high rpm there are also construct some types of
components in system. These systems also known as lubrication system.
Lubrication system is mechanical system of lubricating internal combustion engines in which a pump forces oil
into the engine bearings.
Engine parts that are required quick lubrication
1 Cylinder piston or piston rings
2 Main bearings
3 Crank shaft
4 Crank pin or piston pin
5 Big end or small end of connecting rod
6 Camshaft
7 Valve and valve trains and timing gear assembly
8 Turbo charger (if diesel engine)
Components of Oil Lubrication System:
Oil sump (reservoir)
Oil sump is used for stores the engine oil and provides a reservoir for lubrication. Engine oil is kept in an oil sump,
which also serves as a conduit for it is circulation inside the engine. It has a drain plug for changing the oil and
often found underside of the crankcase.

Oil pump

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CITS : Automotive - Mechanic Diesel - Lesson 39 - 46 CITS : Automotive - Mechanic Diesel - Lesson 39 - 46