Fuel Systems Flashcards
Basic Fuel System Diagram
What is a lift pump?
Provides clean fuel from header tank to the diesel engine
What is the Injection Pump?
Delivers fuel in correct order and time
What is an injector?
Sprays atomised fuel at high pressure into combustion chamber
What is a spill return?
Returns fuel from lubricants and cooling of injector back to system
Lib Oil System Diagram
What is a priming pump?
Created oil pressure prior to starting
Drains engine oil from the sump to the test line
What is a pump?
Mechanically driven to maintain pressure when the engine is running
Name the 4 oil tests
Acidity
Viscosity
Water
Insolubles
How often are oil tests done?
Weekly
Cooling System Diagram
What ratio is the coolant used in the coolant system?
50:50
AL39 : FW
What is AL39?
Mixture of Antifreeze, and corrosion inhibitor
Name the coolant tests
Salinity
Density
Acidity
Name the safety devices
Low lubricants oil pressure
Low coolant pressure
High lubricants oil temperature
High coolant temperature
Engine overspeed
