Maple belt of the water pump
At the six-cylinder engine the drive of the water pump is provided with a gear belt – here everything has to be as it should be.
In a different way the situation is at the four-cylinder engine: this engine never has to be started without maple belt and, therefore, without drive of the water pump! Otherwise you risk to receive heavy injury of the engine.
Cold water is heavier hot. It and without water pump slowly circulates via the engine and a radiator. This thermosiphon and independently circulating cooling is not enough for modern engines. More detailed information is placed in the section Generator.
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