Piston - Transfers combustion energy to the crankshaft, Piston Rings - Forms a seal between piston and cylinder wall to hold pressure, retain oil, and transfer heat, Wrist Pin/Piston Pin - Attaches the piston to the upper end of the connecting rod allowing the piston to pivot, Connecting Rod - Connects piston to the crankshaft, Crankshaft - Converts movements of the piston into rotation movement, creating torque, Connecting Rod Cap - Located on the lower half of the large end of the connecting rod-helps convert reciprocating movement into rotary movement, Oil Dipper - Picks up oil from the reservoir and spreads it across the engine, Camshaft - Determines timing when the valves open and close, Lifters - Moves the pushrod up and down to move the rocker arm, Rocker arms - Connected to the pushrod in order to help convey movement from the camshaft to the vales to open them, Valve Springs - Keeps valves closed tightly against their seats , Valves - Allow air/fuel mixture in and exhaust out,

4 Stroke Engine Vocab

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