Lubrication is the supply of oil between two surfaces that have relative movement.
When applying lubrication to engine parts, one should choose a good lubricant to make the engine run efficiently.
Applying Shell oil to engine part |
The objective of applying lubrication to engine parts are:
- Reduce the frictional forces between the parts by having a relative motion by minimizing the force of friction and ensuring the engine's smooth running.
- To reduce the wear and tear of moving parts.
- To cool the surfaces by carrying away the heat generated due to friction.
- Seal a space adjoining the surfaces, such as piston rings and cylinder liners.
- To absorb the shocks between bearings and other parts and reduce noise.
- To act as a cleaning agent and remove dirt, grit and any deposits that might be present between the moving parts of an automobile.
- To help the piston rings seal the gases inside the piston cylinder.
Parts of the Engine require lubrication:
The main parts of the engine which need lubrication are:
- Main crankshaft bearings.
- Big end bearings or crank pins.
- Gudgeon in bearings.
- Piston rings and cylindrical walls.
- Timing gears.
- Camshaft and camshaft bearings.
- Valve mechanism
- Valve guide, valve tappets, rocker arms.
- Governor and
- Water pump bearing.
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