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2. Piston ring - Wikipedia

   en.wikipedia.org/wiki/Piston_ring

   A piston ring is a metallic split ring that is attached to the outer diameter of a piston in an internal combustion engine or steam engine. The main functions of piston rings in engines are: Sealing the combustion chamber so that there is minimal loss of gases to the crank case.

3. Component parts of internal combustion engines - Wikipedia

   en.wikipedia.org/wiki/Component_parts_of...

   A piston is a component of reciprocating engines. It is located in a cylinder and is made gas-tight by piston rings. Its purpose is to transfer force from expanding gas in the cylinder to the crankshaft via a piston rod and/or connecting rod. In two-stroke engines the piston also acts as a valve by covering and uncovering ports in the cylinder ...

4. Piston - Wikipedia

   en.wikipedia.org/wiki/Piston

   A slipper piston is a piston for a petrol engine that has been reduced in size and weight as much as possible. In the extreme case, they are reduced to the piston crown, support for the piston rings, and just enough of the piston skirt remaining to leave two lands so as to stop the piston rocking in the bore.

5. Kia recalls more than 137,000 vehicles for engine issue: See ...

   www.aol.com/kia-recalls-more-137-000-165803739.html

   Dealers will replace the engine free of charge, federal safety regulators said, and also install piston-ring sensing noise software free of charge. Notification letters are expected to be mailed ...

6. Break-in (mechanical run-in) - Wikipedia

   en.wikipedia.org/wiki/Break-in_(mechanical_run-in)

   The goal of modern engine break-ins is the settling of piston rings into an engine's cylinder wall. A cylinder wall is not perfectly smooth but has a deliberate slight roughness to help oil adhesion. As the engine is powered up, the piston rings between the pistons and cylinder wall will begin to seal against the wall's small ridges. [1]

7. Internal combustion engine - Wikipedia

   en.wikipedia.org/wiki/Internal_combustion_engine

   Bare cylinder block of a V8 engine Piston, piston ring, gudgeon pin and connecting rod. The base of a reciprocating internal combustion engine is the engine block, which is typically made of cast iron (due to its good wear resistance and low cost) [22] or aluminum.