9:14IVECO
RELEASE SLEEVE
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릴리스 슬리브
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9:44CDL Class A FULL In Cab Inspection and Air Brake Test 2023 - Pass Your CDL Trucking Road Test
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A cylinder liner (sleeve) is the replaceable cylindrical surface inside the engine block in which the piston runs.
It gives the piston and rings a hard, wear-resistant wall to slide against and helps transfer combustion heat to the coolant; worn liners can be replaced without scrapping the block.
Liners sit in the engine block, one per cylinder. The correct liner matches the engine model, bore size, and type (wet or dry).