Unit 3 - Cooling System
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10 Terms
What is the primary function of the cooling system?
To maintain correct engine temperature by taking away unwanted heat generated by combustion and friction
What is Engine coolant a mixture of
Water, Conditioner and antifreeze
Why do most engine cooling systems use water base with additives included
Its to reduce
Corrosion of the engine water jackets and other parts of the system
Freezing of the water in very cold climates when the engine is stationary
What does water do to the coolant?
Protects against overheating
What does Antifreeze do to the coolant?
Protects against freezing
What does Coolant Conditioner do to the coolant
Protects against corrosion
What does ELC provide
•Corrosion protection
•Good water pump seal life
•Protection against freezing in low temperatures
•Good anti-boil properties
Name the 7 components of the cooling system
Water Pump
Radiator
Engine Oil Cooler
Cylinder Block
Thermostat
Fan
Radiator Cap
What symptoms should prompt an inspection of the water pump
Coolant in engine oil
Loss of coolant
Overheating
Vibration