What is the purposes of cylinder lubrication ?

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Purpose of cylinder lubrication

1.To seperate sliding surfaces with an unbroken oil film.

2.To form an effective seal between piston ring and liner surfaces to prevent blow past of gases.

3.To neutralize corrosive combustion products and thus protect liner,piston,piston rings,from corrosive attack.

4.To soften deposit and thus prevents wear due to Abrasion.

5.To Clean out combustion deposits on piston rings and grooves and avoids seizure by keeping piston clean (Detergency )

6.To cool hot surfaces and avoid burning.

Note :- Some partial burning of L.O takes place with release of blue smoke. (Haze )