Fuel Injection System

Question 1

How does the fuel injection system work?

Answer 1

Measures the volume of air flowing into the engine to determine the amount of fuel -uses RPM

Question 2

What are the 4 basic components to the fuel injection system?

Answer 2

Engine Driven Injector Pump (Usually Vane type)

Fuel/Air Control Unit

Fuel Manifold Valve

Injector Nozzles

Boost Pump (For startup, and as an aux pump)

Question 3

In a turbocharged fuel injection system, what is different?

Answer 3

No manually adjusted variable orafice

there is an Aneroid assembly exposed to the upper deck

Question 4

T or F: In the Fuel Air Control Unit, there is a venturi

Answer 4

False

Question 5

What is the advantage of a fuel injection system over a carb and pressure carb?

Answer 5

Even distribution and continuos flow of metered fuel

Positive shutoff during idle cutoff

Question 6

What type of injector nozzle has a filter screen and a steel shroud?

Answer 6

Normally Aspirated Nozzle

Question 7

Where does fuel and air mix?

Answer 7

Inlet of the Intake Valve Port

Question 8

What will an absolute pressure gauge read at sea level?

Answer 8

14.7 psi

Question 9

What will gauge pressure be at sea level?

Answer 9

0 psi

Question 10

WHAT IS THE 4 STROKE PRINCIPLE?

Answer 10

INTAKE, COMPRESSION, POWER, EXHAUST