4 Cycle Theory
The four basic elements for an engine to run
What is air, fuel, spark and compression?
The fuel and air mix enters the cylinder
What is the Intake stroke
RPM
What is the unit of measurement to read engine speed?
Houses and supports the crankshaft?
What is the Engine Block
The crankshaft direction of Briggs and Stratton Engine that we learned on in class?
What engine is vertical?
The four strokes of an engine
What is Intake, Compression, Power, Exhaust
Windings around an iron core, when voltage is induced it will create a spark
What is the coil or armature
Both valves are open
What is the valve overlap
A tool used to measure the amount of Torque on a fastener
What is a torque wrench
Keeps Flywheel from spinning free on shaft
What is the shear key
The full movement of a piston in the cylinder
What is a stroke
Principle necessary to pull the fuel from the carburetor bowl to the air stream?
What is Bernoulli's principle
Cold start, no sensor input
What is Open Loop?
The larger valve in an engine
What is the intake valve
Oil reservoir in the engine
What is the crankcase
The Intake Valve is closed and the exhaust valve is open
What is the exhaust stroke
The device used to control the amount of fuel entering the carburetor fuel bowl
What is the needle valve and float
A measurement of force over distance
What is torque
A round tube where the piston is operating
What is the Cylinder
Octane ratings (87, 91, 93) for gasoline
What helps resist knocking or pre-ignition
The piston position at the end of the power stroke
What is BDC
The piston position at the beginning of the intake stroke
What is TDC
Inputs that control fuel delivery and spark timing
What are the Crankshaft Position, MAP and O2 sensors?
A practical use of electromagnetism used on a EFI engine
What are the Injectors?
The process of adding air to a liquid so that it will become a gas
What is vaporize