Engine parts idetification all 40 for test.

What is this part and what is its function?

A timing belt synchronizes the engine's crankshaft and camshaft, ensuring that the pistons and valves open and close at the exact right time for smooth operation and combustion.

What is this part and what is its function?

A chain guide's primary function for an engine is to maintain the timing chain's proper alignment and tension, preventing it from skipping or slipping off the sprockets.

What is this part and what is its function?

The crankshaft sprocket's primary function is to drive the timing belt or chain, synchronizing the crankshaft's rotation with the camshaft(s) to ensure the engine valves open and close at the correct time.

What is this part and what is its function?

The cam sprocket's primary function is to drive the camshaft, which in turn controls the timing of the engine's intake and exhaust valves.

What is this part and what is its function?

A timing chain synchronizes the engine's crankshaft and camshaft(s), ensuring the engine's valves open and close at precisely the right moments for proper fuel intake and exhaust.

What is this part and what is its function?

A cam phaser adjusts the timing of the engine's intake and exhaust valves by rotating the camshaft relative to the crankshaft.

What is this part and what is its function?

A chain tensioner ensures the timing chain remains taut, preventing slack, skipping, and premature wear by applying constant pressure to the chain and compensating for chain stretch and wear over time.

What is this part and what is its function?

The engine front cover serves to protect and lubricate internal timing components like chains or belts from debris and oil leaks, while also providing an aesthetic cover for the engine bay and helping to reduce noise from the valvetrain and fuel injectors.

What is this part and what is its function?

The engine block serves as the fundamental structural frame of an engine, housing critical components like the cylinders where pistons move, and the crankshaft that converts reciprocating motion into rotational force.

What is this part and what is its function?

The connecting rod's primary function is to act as a mechanical link between the engine's piston and the crankshaft, converting the piston's linear (up-and-down) motion into the crankshaft's rotational motion to produce power.

What is this part and what is its function?

Rod bearings reduce friction and wear by providing a smooth, oil-lubricated interface between the rotating crankshaft and the connecting rods, which convert the piston's up-and-down motion into the crankshaft's circular motion.

What is this part and what is its function?

The rod cap is the removable, bottom half of a two-piece connecting rod that secures the connecting rod to the crankshaft's journal, creating a pivot point for the engine's internal components and allowing for service access.

What is this part and what is its function?

The piston pin (or wrist pin/gudgeon pin) serves as the vital pivot that connects the piston to the connecting rod, transferring the force of combustion to the crankshaft while allowing for the piston's smooth up-and-down motion.

What is this part and what is its function?

In an internal combustion engine, the piston's primary function is to convert the chemical energy of fuel into mechanical motion by moving up and down inside a cylinder.

What is this part and what is its function?

Compression rings are piston rings that create a tight seal between the piston and the cylinder wall, preventing high-pressure combustion gases from escaping into the crankcase (blowby).

What is this part and what is its function?

The engine's oil control ring scrapes excess engine oil off the cylinder walls as the piston moves, preventing oil from entering the combustion chamber where it can burn.

What is this part and what is its function?

The crankshaft converts the up-and-down motion of the engine's pistons into the rotational motion that powers the vehicle's transmission, driveshaft, and wheels.

What is this part and what is its function?

The main cap secures the crankshaft in the engine block by holding the main bearings in place, ensuring proper alignment and preventing wear, which is vital for engine operation and durability.

What is this part and what is its function?

The main bearing supports the engine's crankshaft, minimizing friction and shock by creating a low-friction, oil-lubricated surface for the rotating shaft.

What is this part and what is its function?

A thrust bearing prevents the crankshaft from moving too far back and forth (axial movement) within the engine block, which is called end play.

What is this part and what is its function?

The camshaft is an engine component that controls the opening and closing of the intake and exhaust valves, allowing air and fuel to enter the cylinders and burnt gases to exit.

What is this part and what is its function?

A lifter, or cam follower, transfers motion from the camshaft to the engine's intake and exhaust valves, enabling them to open and close to let air and fuel in and exhaust out for combustion.

What is this part and what is its function?

Cam lobes open and close the engine's intake and exhaust valves at the correct times to let the air-fuel mixture in and the exhaust out, directly controlling the engine's performance, power curve, and fuel efficiency.

What is this part and what is its function?

Pushrods transfer motion from the camshaft to the rocker arms, which then open the engine's intake and exhaust valves.

What is this part and what is its function?

Engine valve seals prevent engine oil from leaking from the valve train down the valve stems into the combustion or exhaust systems, ensuring proper oil regulation, efficient combustion, and reduced emissions.

What is this part and what is its function?

A valve spring's primary function is to quickly and forcefully close the engine's intake and exhaust valves and keep them tightly sealed against the valve seat.

What is this part and what is its function?

Valve keepers, also known as valve locks or collets, secure the valve spring and its retainer to the valve stem, preventing the valve from dropping into the engine cylinder, which could cause catastrophic failure.

What is this part and what is its function?

An exhaust valve's primary function is to expel burnt gases from the engine's combustion chambers after the power stroke, allowing fresh air-fuel mixture to be drawn in during the subsequent intake stroke.

What is this part and what is its function?

A rocker arm is a lever in an engine's valvetrain that converts the up-and-down motion from the camshaft into the movement needed to open and close the engine valves.

What is this part and what is its function?

The intake valve controls the flow of the air-fuel mixture into the engine's combustion chamber, opening during the intake stroke to let this mixture in and closing to create a seal during compression and power strokes.

What is this part and what is its function?

The head gasket seals the engine's cylinder head to the engine block, maintaining critical engine functions by keeping combustion gases contained, preventing oil and coolant from mixing, and ensuring proper engine compression for power and smooth operation.

What is this part and what is its function?

The cylinder head seals the top of the engine block's cylinders to form the combustion chambers, housing the intake and exhaust valves, spark plugs (or injectors), and passages for coolant and oil.

What is this part and what is its function?

The crankcase oil seal's main job is to prevent engine oil from leaking out of the engine where the rotating crankshaft exits the crankcase, while also preventing outside contaminants like dust from getting in.

What is this part and what is its function?

A flexplate connects an engine's crankshaft to a torque converter in an automatic transmission, transferring power to move the vehicle and providing teeth for the starter motor to engage during engine starting.

What is this part and what is its function?

A flywheel smoothes engine power delivery and reduces vibration by storing rotational energy and releasing it between power strokes, which prevents the engine from stalling and provides a consistent power output.

What is this part and what is its function?

A valve cover protects the engine's internal valvetrain components by containing the engine oil, preventing leaks and keeping debris out, which is essential for proper lubrication and cooling.

What is this part and what is its function?

An exhaust manifold collects hot, burnt gases from each of the engine's cylinders and channels them into a single pipe, directing them toward the vehicle's exhaust system.

What is this part and what is its function?

A harmonic balancer reduces engine vibration by dampening the crankshaft's twisting and rebounding motion, protecting engine components like bearings and seals from excessive wear and preventing premature engine failure.

What is this part and what is its function?

The oil pan serves as a reservoir to hold and store the engine's lubricating oil, which is crucial for the engine's lubrication system, preventing friction and wear.

What is this part and what is its function?

The intake manifold's primary role is to distribute air (or an air-fuel mixture in older engines) from the throttle body evenly to each cylinder for combustion, ensuring efficient and powerful engine operation.