Engine Parts Quiz Review

Cylinder Head

Top section of the engines that houses valves, ports, and forms the top of the combustion chamber.

crankshaft

Main rotating shaft that converts piston’s up-and-down motion into rotary motion.

piston

Moves up and down in the cylinder to compress air/fuel mixture and transfer force.

oil control ring

Ring on the piston that controls oil film and prevents excess oil from entering combustion.

combustion chamber

Space where the air/fuel mixture is compressed and ignited to produce power.

intake valve

Valve that allows the air/fuel mixture to enter the combustion chamber.

connecting rod

Rod that connects the piston to the crankshaft, transferring motion.

engine block

Houses the pistons and forms the main structure of the engine.

exhaust port

Passage that allows burnt exhaust gases to leave the combustion chamber.

camshaft

Rotating shaft that opens and closes the engine’s values in time with the crankshaft.

cam lobe

Raised section on the camshaft that pushes on lifters or rockers to open valves.

piston pin

Pin that connects the piston to the connecting rod, allowing pivoting movement.

cylinder

Round hole in the engine block where the piston moves up and down.

intake port

Passage through which air/fuel mixture enters the cylinder.

Compression rings

Metal ring near the top of the piston that seals combustion gases inside the cylinder.