29-03-2014, 02:23 PM
Cooling System
Cooling System.ppt (Size: 114.5 KB / Downloads: 205)
An automotive cooling system must perform several functions
1. Remove excess from the engine
2. Maintain a consist engine temperature
3. Help a cold engine warm-up quickly
4. Provide a means of warming the passenger compartment
Water soluble oil is used as a lubricant in all coolants systems components
Coolant uses lubricant in coolant to lubricate the water pump.
Coolant is a mixture of water and antifreeze. (Normally 50/50 mixture)
Some people refer to coolant as antifreeze
When checking a cooling system its important to ensure that the fan is not broken or;
A. Engine could vibrate excessively
B. Cause premature water pump bearing failure
C. Overheating because not enough air will be pulled through the radiator.
Coolant Quiz
What part of the cooling system serves as the heat exchanger
A. Heater hoses
B. Water pump
C. Fan belt
D. Radiator
[b]FUEL SYSTEM[/b]
Automotive gasoline is manufactured from crude oil (petroleum) produces Hydrocarbons (HC)
Hydrocarbons is really unburned gasoline.
Carbon Monoxides (CO) is fuel that did not complete burn in the combustion chamber.
Fuel must atomize (change into a vapor) before it can burn in the combustion chamber