Some engines coat the inside of the cylinder head with this material as it is a poor conductor of heat
Ceramic
The thermostat is an electronically controlled valve. True or False?
False
What is a 'corrosion inhibitor'?
Additive
Effect of 'red heat' on oil
Cause it to burn
Term used to describe the effect of super hot exhaust gasses on metals
Red heat
This component increases the boiling temperature of the coolant b a further 25 dc
Pressure cap
Percentage of the heat that gets transferred into kinetic energy
33%
Term given to fuel/air mixture igniting before sparking from the spark plug
Pre-ignition
Secondary function of the cooling system
Keep the engine running at a constant temperature
Main ingredient of antifreeze
Ethylene Glycol
This component circulates coolant around the engine
Water Pump
Why pressure test the cooling system?
Check for leaks
Used to test specific gravity of antifreeze
Hydrometer
Another name for radiator
Heat Exchanger
Name of the component that blows warm air into the car
Heater Matrix
Cooling system capacity - 6.3 litres on a 50% mix. How much coolant to water is needed?
3.15 litres of each
Why are radiator hoses made from rubber?
Flexibility and expansion
Temperature controlled valve
Thermostat
What could a fallen core plug indicate?
Sign that the coolant has frozen
Famous air-cooled car
Porsche Carrera 2.7 RS
Optimum engine running temperature
88-93 dc
Main function of the cooling system
Prevent engine from over-heating
2 main ingredients of coolant
Water and antifreeze
R.S
Rally Sport