heated intake

heated intake
A device that helps to vaporize the gasoline in a cold engine. The thermostat in the air cleaner horn is connected to the outside of the exhaust manifold. When the engine is cold, the thermostat closes a damper in the air cleaner horn so that air going to the carburetor does not come through the open end of the horn. Instead the air comes from above the hot exhaust manifold. As the engine warms up, the thermostat opens the damper so that air is taken in from the end of the horn.

Dictionary of automotive terms. 2015.

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