Automobile Engineering in ME
The damper fluid leakage typically occur from

Coil spring mounting
Bottom of damper
Upper damper mounting
Clearance between inner and outer tubes of damper

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Automobile Engineering in ME
The function of a first compression ring (top ring) is that it

Increases the combustion temperature
Maintains a seal and prevents escape of burned gases and loss of pressure in the combustion chamber
Maintains a seal and prevents the fuel leakage
Creates swirl

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