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© 200324 2-3 General XE ENGINE COOLING SYSTEM CF65/75/85 series 2 9 2.2 SYSTEM DESCRIPTION, COOLING SYSTEM From the delivery side of the water pump (1), the coolant is directed to the cylinder block (2) via an opening at the back of the coolant pump. The coolant flows through the cylinder block up to the cylinder heads (3). The coolant leaves the cylinder heads through the coolant collector pipe (4) (A), which takes it to the thermostat housing (5). If an intarder (13) or automatic gearbox (13) is fitted, the coolant leaving the cylinder heads flows via the coolant collector pipe (4) (B) to the intarder or the automatic gearbox. From the intarder or automatic gearbox, the coolant then flows via the coolant collector pipe (B) to the thermostat housing (5). Depending on the coolant temperature, the thermostat distributes the coolant flow to the radiator (6) or back to the coolant pump (1). The coolant transported to the radiator enters the radiator at the top, and leaves the radiator at the bottom. From the bottom of the radiator, the coolant is returned to the coolant pump, via the coolant return pipe. M201279 Heater unit Thermostat Coolantpump Cylinderblock Cylinderhead Radiator 6 1 5 12 13 15 10 8 14 3 4 2 3 9 7 11 Cylinderhead Coolantpipe Oilcooler Compressor Coolantpipe Retarder Automatic transmission Coolant filter Non return valve Auxiliary cab heater Reservoir M201038 A B |