Technical Dictionary Components of the cooling system Water Pump. A centrifugal pump to circulate the coolant. In the 4-cylinder engine water pump located on the same shaft as the fan. At 6-cylinder engine water pump is mounted on the left side of the engine 4 bolts. Radiator. All radiators are made of light alloy. Radiators as fan shroud have different dimensions. On vehicles with automatic transmission at the right water tank drain valve mounted radiator coolant. Thermostat. This depends on the temperature controller controls the coolant circuit. Circuit at C to +85 ?�: the coolant is circulated through the small loop. Circuit normal operation at temperatures 85 ... 100 ?� C: partially opens the radiator; cold liquid from the radiator is mixed with the warm coolant before it is supplied to the pump motor. Maximum cooling at temperatures above +100 ?� C: The thermostat valve is fully open, all of the coolant passes through the radiator. Expansion tank. Bleed steam in the event of excess pressure via a pressure reducing valve in the lid. The radiator fan. Depending on the engine, as well as the vehicle's equipment, installed fan with viscous coupling or motor. |