Labels:text | font | screenshot | document | number OCR: At 30 mph an engine can perform 60 fuel/air explosions a second in its cylinders, producing a tremendous amount of heat. If not removed, this heat would melt the pistons and fuse solid the engine parts. These high temperatures require an efficient cooling system. A typical water-cooled system has a fan cooled radiator that supplies coolant (a mixture of water and anti-freeze) pumped through passages in the engine, past a thermostat, and back to the radiator. Most vehicles will include a temperature gauge on the instrument panel, and often with a warning light for an overheating condition in the coolant system. Common causes of overheating include: > a broken fan belt (the fan cools the radiator) > a lack of coolant water, due to boiling away or leaks > a blocked radiator, due to either ice in cold weather or limescale deposits build-up from using hard water Periodically check the coolant level in the radiator, and make sure it is topped up to remain between the high/low marks. The owner's handbook should specify the strength of the anti-freeze to be used in the coolant.
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