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Flashcards in Cooling Systems Deck (12)
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1

The cooling system must consistently and reliably?

Remove excess engine heat
Regulate operating temperature of engine

2

Heat created by combustion is goes where?

1/3 - produce power
1/3 - absorbed by cooling system
1/3 - radiated by exhaust system

3

Convection

The movement of warm gases or liquids from a hot area to a cooler area

4

What are the 4 primary functions of an engine cooling system?

Remove excess engine heat
Regulates engine temo as required
Removes heat from components like oil coolers
Allows rapid engine warm up

5

What are the 3 principles relating to heat transfer?

Convection
Conduction
Radiation

6

T/F The boiling point of a liquid in a sealed and pressurized system can be higher than the boiling point of a liquid in a open container?

True

7

Identify 4 advantages of an air cooled system as compared to a liquid cooled system?

Overall weight can be lighter
Amount of maintenance can be reduced
Total system is less complex
Coolant leaks and corrosion not a problem

8

What are the 2 types of radiator designs based on coolant flow?

Cross-flow
Down-flow

9

What is the purpose of coolant director nozzles?

Used to direct coolant to areas around the hot exhaust seats

10

Coolant mixtures exceeding 60% anti-freeze can do what to the boiling point?

Lower it. as well as cause gelling

11

Corrosion inhibitors are often referred to as?

Supplemental coolant additives (SCA's)

12

A 50/50 anti-freeze mix has a freezing point of?

-37C, -34F