Can You Name the Engine Parts From a Visual Clue and a Hint?

By: Diana Spasic
Estimated Completion Time
3 min
Carburetor It used to be a crucial part of internal combustion engines. Can you name it?
Rocker arm
Carburetor
A carburetor’s purpose is mixing air and fuel for internal combustion engines in the correct ratio for combustion. Fuel injection has largely supplanted them over the recent years.
Intercooler
Bowl Prechamber Ignition

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Crankshaft Can you name this mechanical engine part by looking at the photo?
Turbocharger
Valves
Crankshaft
A crankshaft is a mechanical part of an engine that converts reciprocating motion to rotational motion or vice versa, depending on the type of the engine.
Wastegate

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Fuel pump This one should be pretty easy. What is this engine part called?
Fuel pump
Before the widespread adoption of electronic fuel injection, most carbureted engines used mechanical fuel pumps for transferring fuel from the fuel tank into the fuel bowls of the carburetor.
Spark plug
Water pumps
Ki-Gass

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Distributor What is this interesting-looking engine part called?
Engine control unit
Rocker arm
Poppet valve
Distributor
Spark-ignition internal combustion engines with a mechanically-timed ignition use distributors to properly route secondary or high voltage current from the ignition coil to the spark plugs.

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Oil pump You’ve probably seen this part many times. What is it called?
Injection pump
Vacuum modulator
Wastegate
Oil pump
An oil pump in an internal combustion engine is used for circulating engine oil under pressure to the rotating bearings, the sliding pistons and the camshaft of the engine.

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Air filter Do you recognize this essential engine part?
Air filter
An air filter prevents abrasive substances from entering the engine’s cylinders to stop them from causing mechanical wear and oil contamination.
Rocker cover
Cylinder head
Starter

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Small end bushes It might be tiny, but it matters a lot. What do you call this engine part?
Rocker arm
Small end bushes
The small end bushes are mounted in the so-called “Small end” of the connection rod. They provide relative motion of the piston to the connection rod.
Cross-bolted bearing
MAP sensor

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Ignition coil It’s the part that makes the spark! Can you name it?
Engine control unit
Throttle
Piston
Ignition coil
An ignition coil, also called a ‘spark coil,’ is an induction coil in the ignition system of an automobile that transforms the battery’s low voltage to the thousands of volts required to create an electric spark to ignite the fuel.

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Radiator Are you familiar with this engine part?
Turbocharger
Radiator
Despite the fact most radiators are regularly used for heating, when it comes to internal combustion engines, radiators are used for cooling.
Injection pump
Exhaust system

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Valvetrain What is this mechanical system called?
High tension leads
Poppet valve
Valvetrain
A valvetrain is an assembly of components designed to open and close the intake of exhaust valves. A sequence of components transmits motion throughout the assembly.
Rocker cover

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Valves How about these engine parts, do you know their name?
Valves
A conventional reciprocating internal combustion engine uses valves to control the air/fuel admix flow in and out of the combustion chamber.
Vacuum modulator
Starter
MAP sensor

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Spark plug This little guy is one of the most popular ones on the list! What is it called?
Starter
Bowl Prechamber Ignition
Spark plug
Étienne Lenoir used an electric spark plug on his gas engine in 1860, creating the first combustion piston engine. Lenoir is credited for the invention of the first spark plug.
Piston Rings

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Piston Can you name this engine part just by looking at the photo?
Piston
Located in the cylinder, a piston is a component of reciprocating engines made gas-tight by piston rings. It transfers force from expanding gas in the cylinder to the crankshaft.
Crankshaft
Rocker arm
Carburetor

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Poppet valve Can you name this curly-looking engine part?
Fuel pump
MAP sensor
Piston Rings
Poppet valve
A poppet valve is also called a mushroom valve, and it is typically used to control the quantity and timing of vapor or gas flow into the engine.

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Engine control unit This is the boss of everything – can you name it?
Exhaust system
Water pumps
Engine control unit
An engine control unit (ECU) ensures optimal engine performance by controlling series of actuators on an internal combustion engine.
Oil pump

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Oil Pan Do you recognize this important piece of engineering?
Crankshaft
Oil pan
The oil pan is a reservoir for oil that’s attached to the bottom of the engine with bolts. A pump guides the oil from the pan through a filter to remove any dirt before it sends it to circulate through the engine.
Air filter
High tension leads

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Wastegate What is this complex-looking part named?
Wastegate
The wastegate’s primary function is to protect the engine and the turbocharger by regulating the maximum boost pressure in turbocharger systems.
Electronic control unit
Intercooler
Cylinder head

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Vacuum modulator Do you recognize this important piece of machinery?
Radiator
Rocker cover
Vacuum modulator
Some cars use a vacuum modulator to apply pressure to the throttle valve. The device senses the manifold pressure, which further increases when the engine is under a bigger load.
High tension leads

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Turbocharger What do you call this snail-shaped part?
Radiator
Intake manifold
Cylinder head
Turbocharger
A turbocharger’s role is to force extra compressed air into the combustion chamber and thus increase an internal combustion engine’s efficiency and power output.

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Throttle You’ll probably know what this engine part is called. Can you name it?
Starter
Valves
Fuel pump
Throttle
A throttle is a valve that controls the volume of vaporized fuel delivered to the cylinders of an internal combustion engine.

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Timing belt This one is super-easy. Do you know what it’s called?
Water pumps
Exhaust system
Timing belt
A timing belt, or cambelt, is an important part of an internal combustion engine. It synchronizes the rotation of the camshafts and the crankshaft so that the valves open and close at the right time.
Carburetor

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MAP sensor How about this engine part? Can you name it or do you need a hint?
MAP sensor
A manifold absolute pressure sensor (MAP sensor) is one of the sensors used typically by engines that are fuel-injected. It is mostly seen in an internal combustion engine’s electronic control system.
Ki-Gass
Spark plug
Piston Rings

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High tension leads Can you name the engine part you see in the photo?
Starter ring gear
Ignition coil
High tension leads
High tension leads are the wires that connect an ignition coil, a distributor or a magneto to each of the spark plugs in many types of internal combustion engines.
Intake manifold

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Injection pump What is this sophisticated piece of machinery called?
Connecting rod bearings
Injection pump
The pump that pumps diesel fuel into the cylinders of a diesel engine is called an injection pump. It’s a very complex piece of engineering, calibrated to deliver the right quantity of fuel every time.
Distributor
Piston Rings

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Rocker arm How about this engine part? Can you name it?
Piston
Engine block
Oil pump
Rocker arm
Rocker arms are typically placed between the intake and exhaust valves and the pushrod. The pushrod pushes up the rocker arm and therefore pushes down the valves.

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Screamer pipe Can you name this “dramatic” engine part?
Water pumps
Screamer pipe
A screamer pipe is known for the loud noise it produces. It’s a type of exhaust setup fitted to some automotive turbocharged gas engines.
Valvetrain
Poppet valve

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Intercooler What is this complex mechanical device called?
Rocker cover
Water pumps
Intercooler
The role of the intercoolers is to reduce induction air heat created by the supercharger or turbocharger and to increase the efficiency of the induction system by promoting more thorough combustion.
Engine control unit

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Starter ring gear How about this engine part? Can you name it just by looking at it?
Cylinder head
Valvetrain
Starter ring gear
A starter ring gear is a carbon steel ring placed at the periphery of a flywheel of an internal combustion engine. The ring has teeth that are driven by the smaller gear of the starter motor.
Fuel pump

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Exhaust manifold Do you know what this piece of engineering is called?
Intake manifold
Poppet valve
Carburetor
Exhaust manifold
The exhaust manifold channels exhaust gases away from the controlled combustion inside an engine.

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Piston Rings What do you call this internal combustion engine part?
Engine block
Piston rings
Piston rings have several important functions in reciprocating engines, some of which include sealing the combustion chamber to ensure minimal loss of gases to the crankcase and improving heat transfer from the piston to the cylinder wall.
Ignition coil
Wastegate

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Cylinder head How about this robust engine part, can you name it?
Cylinder head
A cylinder head sits above the cylinders on top of the cylinder block in an internal combustion engine. The head closes in the top of the cylinder, forming a combustion chamber.
Ki-Gass
Radiator
Carburetor

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Main crankshaft bearings This engine part may look plain, but it’s very significant. What is it called?
Spark plug
Bowl Prechamber Ignition
Main crankshaft bearings
Main crankshaft bearings are mounted in the crankcase. The main bearing consists of two parts: upper and lower. It also has a hole for passing oil to the feed holes in the crankshaft.
Rocker cover

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Water pump What is this vital engine part called?
Vacuum modulator
Water pump
A water pump makes sure the coolant keeps moving through the engine block, hoses and radiator while maintaining an optimal operating temperature.
Oil pump
Crankshaft

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Intake manifold Do you recognize the engine part from the photo? What is it called?
Valves
Timing belt
Engine control unit
Intake manifold
An intake manifold is a pipe that brings air or air/fuel mixture into the combustion chamber. It’s connected to the intake valves.

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Starter You can't turn on the engine without it. Can you name it?
Air filter
Turbocharger
Starter
Starters can be electric, pneumatic or hydraulic. In some cases, especially when it comes to very large engines, the starter can even be another internal-combustion engine.
MAP sensor

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Connecting rod bearing This small engine part makes a huge difference. Can you name it?
Connecting rod bearing
Connecting rod bearings have a role of providing rotation motion in the crank pin within the connecting rod. A bearing always consists of two parts that are usually interchangeable.
Radiator
Cross-bolted bearing
Throttle

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Engine block What do you call this structure?
Injection pump
Ki-Gass
High tension leads
Engine block
An engine block is the main structure of an internal combustion engine that contains the cylinders and other parts. It typically consists of the cylinder, oil galleries, coolant passages, crankcase and cylinder head(s).

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Rocker cover Final question: Can you name this engine part?
Rocker arm
Rocker cover
Rocker covers are bolted on over rocker arms in internal combustion engines. They are also called valve covers, but they are also sometimes referred to as a “timing cover” or a “cam cover.”
Electronic control unit
Bowl Prechamber Ignition

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