Questions and Answers
What converts the reciprocating motion of the piston(s) into useful rotary motion?
What is a piston?
Sliding metal 'plug' that transfers the energy of combustion to the connecting rod, and seals the cylinder.
What is the cylinder block?
The foundation of the engine that contains all of the other parts.
What is the function of a connecting rod?
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What differentiates an intake valve from an exhaust valve?
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What does combustion refer to?
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What is the role of the cylinder head?
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What does the connecting rod cap do?
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What is compression in an engine?
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What is contained in the oil pan?
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What is the primary function of a camshaft?
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What do valve springs do?
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What is the function of the harmonic balancer?
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The spark plug is a device for firing the __________ in an internal combustion engine.
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What is the role of an ignition coil?
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What connects and synchronizes the crankshaft to the camshaft?
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What does the crankshaft position sensor do?
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What does the ignition distributor do?
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What prevents oil leaks from the distributor?
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What is the valve cover designed to do?
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What does the valve cover gasket do?
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What does the intake manifold do?
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What does the water pump do?
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What is the role of the exhaust manifold?
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What does the oil filter do?
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What does the camshaft sprocket do?
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What is the oil drain plug used for?
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What does the head gasket do?
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What does the camshaft position sensor do?
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What is the throttle position sensor used for?
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Study Notes
Engine Parts Overview
- Crankshaft: Converts piston motion into rotary motion.
- Piston: Transfers combustion energy to the connecting rod; seals the cylinder.
- Cylinder Block: The foundational structure housing key engine components.
- Connecting Rod: Connects the crankshaft and piston.
- Intake/Exhaust Valve: Manages the flow of air/fuel mixture and exhaust gases.
Combustion and Pressure
- Combustion: The chemical reaction of burning an air/fuel mixture.
- Compression: The force exerted on the air/fuel mixture within the cylinder.
Engine Components
- Cylinder Head: Seals the top of the cylinders and supports the valves.
- Connecting Rod Cap: Facilitates the mounting of the connecting rod to the crankshaft.
- Oil Pan: Holds engine oil, located beneath the cylinder block.
Valvetrain Mechanics
- Camshaft: Operates valves via rotating lobes.
- Valve Springs: Responsible for closing valves when not operated by the camshaft.
- Valve Cover: Protects the valve train and seals the top of the engine.
Vibration and Torque Management
- Harmonic Balancer: Reduces engine vibrations and often doubles as a pulley for drive belts.
- Flywheel/Flexplate: Transfers torque from the crankshaft to the clutch or torque converter.
Ignition System
- Spark Plug: Ignites the air/fuel mixture in the combustion chamber.
- Ignition Coil: Converts low battery voltage into high voltage to create a spark.
- Ignition Distributor: Directs the spark to the appropriate cylinder according to the firing order.
Engine Timing
- Timing Belt/Chain: Synchronizes crankshaft and camshaft movement.
- Crankshaft Position Sensor: Measures the crankshaft's speed and position, reporting to the engine computer.
- Camshaft Position Sensor: Monitors the camshaft's position and sends data to the engine computer.
Sealing and Preventing Leaks
- Distributor O-Ring: Prevents oil leaks from the distributor.
- Valve Cover Gasket: Seals the valve cover to prevent oil leaks.
- Oil Drain Plug: Used for draining engine oil during maintenance.
- Oil Drain Plug Seal: Ensures no oil leaks from the drain plug.
Air Intake and Exhaust Management
- Intake Manifold: Distributes airflow to the cylinders for combustion.
- Intake Manifold Gasket: Seals the manifold to the cylinder head, avoiding vacuum leaks.
- Exhaust Manifold: Directs exhaust gases from the cylinder head to the catalytic converter.
Cooling and Lubrication
- Water Pump: Circulates coolant through the engine and radiator.
- Oil Filter: Cleans and filters engine oil to ensure proper lubrication.
Additional Sensors
- Throttle Position Sensor: Monitors the throttle plate position and communicates with the engine computer.
- Head Gasket: Seals the cylinder head to the block, preventing leaks and maintaining compression.
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Description
Test your knowledge of engine components with this quiz. Each question focuses on a specific part of an engine, such as the crankshaft and piston, along with their definitions. Perfect for automotive students or enthusiasts.