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4 Stroke cycle
Manifolds
Cylinder Head
Engine Block
Diagnostic Theory
100
The movement of the piston down after the combustion occurs
What is the power stroke.
100
It carries away the burnt gasses from the combustion process.
What is header or exhaust manifold
100
It opens to allow fresh air in or exhaust gas out.
What is a valve.
100
It goes up and down inside the cylinder.
What is the piston
100
Negative pressure that engines create inside the intake manifold.
What is vacuum
200
It carries away the burnt air fuel mixture.
What is the exhaust stroke
200
It holds the fuel injectors and supplies fuel to them
What is the fuel rail
200
It closes the valve after it has opened to allow air in or out.
What is the valve spring?
200
The piston is attached on one end and the other is attached to the crank shaft.
What is connecting rod
200
The positive pressure that pushes the air into the engine cylinders.
What is atmospheric pressure.
300
The air fuel mixture in squeezed together to help create power.
What is compression stroke
300
Allows the air to mix with the fuel and enter the engine.
What is Intake manifold
300
As it rotates the high spots directly or indirectly open the valves.
What is cam shaft
300
It is the wear surface for many parts of the engine so the metal is not damaged and allows the engine parts to turn freely.
What is bearing
300
If this "blew" you could overheat your engine and blow out white smoke.
What is cylinder head
400
Air and fuel mixture is allowed into the combustion chamber.
What is Intake Stroke?
400
It opens and closes to vary air flow into the engine allowing more power to be made.
What is throttle body
400
They allow antifreeze and water along with oil to circulate through the head.
What are passages.
400
It circulates the coolant through the passages
What is water pump
400
The act of firing the spark plug before TDC on compression stroke.
What is Timing
500
The end of the exhaust stroke and the beginning of the intake stroke.
What is valve overlap or cylinder scavenging.
500
New delivery method for fuel in modern engine.
What is Direct Fuel Injection
500
It is inserted into the head to give the air fuel mixture the spark it needs to ignite
What is the Spark Plug
500
It allows reciprocating motion to be turned into rotary motion.
What is Crank shaft
500
Would cause the car to have less power and the catalytic converter may be glowing red.
What is plugged exhaust