Why Apply Lubrication to Engine Parts ?

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 parts
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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