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A valve is a component of a reciprocating internal combustion engine located in the engine head to control the air and exhaust gas flow.

It is a combustion engine element in which a piston moves. It is a part of the engine body assembly.

A crankshaft is a key component of an engine assembly. It is part of the piston-crank system translating reciprocating motion into rotary motion.

Valve guides discharge a certain amount of heat from a valve head through a valve stem. A valve guide is also affected by lateral forces acting on a valve stem.

An oil pump transfers oil from an oil sump through an oil filter and oil cooler to engine lubrication points. The engine lubrication system supplies an engine with a sufficient amount of lubricating oil. It is a closed system in which oil performs numerous tasks.

Sealing elements that separate a reciprocating internal combustion engine combustion chamber from the crankcase and remove excess oil from the cylinder walls. Ring working surfaces are chromium-plated or covered with molybdenum.