Figure 2. Liquid- Cooled Engine

Figure 1. Air-Cooled Engine

Figure 3. L - Head Engine

Wheeled Vehicle Engines
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Lesson 1/Learning Event 1

FIGURE 2. LIQUID-COOLED ENGINE.

Liquid-Cooled. Liquid-cooled engines have passageways or a water jacket around the cylinders and in the head

to hold a liquid coolant. A pump is used to circulate the coolant through the engine water jackets and an

external container called the radiator. Liquid-cooled engines also have a fan, but it is for circulating air between

cooling fins on the radiator to carry heat away from the liquid coolant.

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