Cooling System

ManualsBrandsCHERY ManualsAutomotiveChery Carry A18 COOLING SYSTEM_C.pdf

COOLING SYSTEM

DESCRIPTION OF COOLING SYSTEM … … …… …… … …… …… … …… …C-2

COMPONENTS OF 480 ENGINE COOLING SYSTEM … … ……………………C-2

WORKING PRINCIPLE OF COOLING SYSTEM … … …… …… … …………C-2

PARAMETERS OF COOLING SYSTEM … … …… …… … …… …… … …… C-3

ENGINE COOLANT … … …… …… … …… …… … …… …… … …………… …C-3

COOLANT DISCHARGE … … …… …… … …… …… … ………………………C-3

COOLING SYSTEM CLEANING … … …… …… … …… …… … ……… …C-3

COOLANT FILLING … … …… …… … …… …… … …… …… … ……………C-4

COOLING SYSTEM CHECKUP …… …… ……… ……… ……… …… …… …C-5

COOLING SYSTEM MAINTENANCE WARNING … … …… …… … ……… …C-5

WARNING … … ………… ………… ………… ………… …… …… … …… …C-5

WATER PUMP … … …… …… … …… …… … …… … … … ………………………C-6

STRUCTURE … … …… …… … …… …… … …… …… … …… …… … …C-6

DISASSEMBLY/ASSEMBLY … … …… …… … …… …… … …… …… … …C-6

THERMOSTAT … … …… …… … …… …… … …… …… … …… …… … …… …C-7

DISASSEMBLY/ASSEMBLY … … …… …… … …… …… … …… …… … …C-7

WATER TEMPERATURE SENSOR … … …… …… … …… …… … ………… …C-9

DISASSEMBLY/ASSEMBLY … … …… …… … …… …… … …… …… … …C-9

CHECKING … … …… …… … …… …… … …… …… … …… …… … …… C-9

COOLING FAN … … …… …… … …… …… … …… …… … …… …… … …… C-9

DISASSEMBLY/ASSEMBLY … … …… …… … …… …… … …… …… … …C-9

GUIDELINE FOR DISASSEMBLY … … …… …… … …… …… … ……… …C-10

EXPANSION RESERVOIR … … …… …… … …… …… … …… …… … …… …C-11

DISASSEMBLY/ASSEMBLY … … …… …… … …… …… … …… …… … …C-11

ASSEMBLY OF RADIATOR …… …… …… … ……… …… … …… …… … …… C-12

DISASSEMBLY/ASSEMBLY … … …… …… … …… …… … …… …… … …C-12

C-1

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Summary of content (13 pages)

PAGE 1
COOLING SYSTEM DESCRIPTION OF COOLING SYSTEM … … …… …… … …… …… … …… …C-2 COMPONENTS OF 480 ENGINE COOLING SYSTEM … … ……………………C-2 WORKING PRINCIPLE OF COOLING SYSTEM … … …… …… … …………C-2 PARAMETERS OF COOLING SYSTEM … … …… …… … …… …… … …… C-3 ENGINE COOLANT … … …… …… … …… …… … …… …… … …………… …C-3 COOLANT DISCHARGE … … …… …… … …… …… … ………………………C-3 COOLING SYSTEM CLEANING … … …… …… … …… …… … ……… …C-3 COOLANT FILLING … … …… …… … …… …… … …… …… … ……………C-4 COOLING SYSTEM CHECKUP …… …… ……… ……… ……… …… …… …C-5 COOLIN
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COOLING SYSTEM DESCRIPTION OF COOLING SYSTEM COMPONENTS OF 480 ENGINE COOLING SYSTEM Engine cooling system is used to cool engine to prevent the engine from overheating, ensuring the normal operation of engine. It is composed of the timing belt-driven water pump, transverse radiator, water tank, water pipe, thermostat, temperature control switch of electrically-driven fan and water temperature sensor.
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PARAMETER OF COOLING SYSTEM Cooling system Parameter Total system capacity（L） 8 Engine capacity（L） 3.3 Coolant capacity Radiator capacity（L） 2.1 Expansion reservoir capacity（L） 0.4 Diameter: 280mm Number of blades: 6 Operating voltage: 9-15V Fan Rotating speed Ι gear: high-speed engine 2000±200 low-speed engine 1800±200 Rotating speed II gear: high-speed engine 2800±200 low-speed engine 2600±200 Diameter of impeller: ф72mm Water pump Transmission rate: 1.
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preheat up to normal operating temperature, shut down and cool down; ――To discharge coolant; ――To repeat the abovC-mentioned steps until the discharged water is the same as the clean water; ――To clean the cooling system according to the following methods if the coolant is not correctly used and replaced to meet the requirements in the former utilization: a. To discharge coolant; b.
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the expansion reservoir descends quickly, coolant should be injected up to the highest position to cut down the air circulation in the system. ――To shut the engine down to have it fully cooled（if possible, leave the engine alone for one night.）; ――To open the pressure cap to check the coolant level, and inject coolant up to the highest position. Cooling System Checkup: ――To check the coolant level, start up the engine and preheat it.
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WATER PUMP Structure: 1—Water pump housing 2—Water pump impeller 3—Water pump gear 4—Water pump shaft bearing 5—Water pump seal (ceramics-lead) Disassembly: ——To disconnect the negative terminal of battery; ——To discharge engine coolant (refer to the coolant discharge process); ——To disconnect poly V-belt and power pump belt; ——To demount timing shield; ——To unscrew and take 4 bolts out of the front side of cylinder block. ——To demount the water pump assembly; ——To demount the water pump gasket.
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THERMOSTAT Disassembly: ——To unscrew 3 M6×40 bolts and then demount the bolts; ——To demount thermostat chassis and thermostat assembly. ——To pry out the spring clamps by using chisel or screwdriver. ——To take the thermostat out; ——To clean up the thermostat; C-7 PDF created with pdfFactory Pro trial version www.pdffactory.
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——To take the seal ring out, and replace it if it being worn and torn. ——To demount the gasket from the thermostat chassis. （To replace with new gasket if it is worn and torn, and allow no repeated use.） ——To measure the thermostat opening temperature under hot water. Assembly: ——To clamp the thermostat and then put the gasket into the thermostat aperture. ——To install thermostat (the side with spring facing outward).
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WATER TEMPERATURE SENSOR Disassembly: ——To demount water temperature sensor (at the exhaust pipe flank and under the lifting eye). Assembly: ——To apply Letai 243 glue on the screw thread, screw up the bolt to 7.0—10.0Nm before installation. Checking: Water temperature sensor is a negative temperature coefficient sensor, which is composed of a thermal resistor. The resistance value of the resistor shall decrease as the engine temperature rises.
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——To demount the matching plug of the cooling fan. ——To remove the fastening self-tapping screw from the cooling fan. ——To take the cooling fan out. Assembly: ——To assemble the cooling fan according to the disassembly order (the tightening torque of self-tapping screw is 1.8~2.2Nm) ——To start up the engine and check if the cooling fan is under normal operation.
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EXPANSION RESERVOIR Disassembly: ——To demount the water pipe connecting with the expansion reservoir. ——To pry out the protecting hood of expansion reservoir by using a screw drive. ——To demount the fastening bolts of the expansion reservoir by using M10 sleeve. ——To pull out the plug of liquid level sensor. ——To take the expansion reservoir out. C-11 PDF created with pdfFactory Pro trial version www.pdffactory.
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Assembly: ——To assemble the expansion reservoir according to the order opposite to the disassembly order（the tightening torque of self-tapping screw is 4.0~5.0Nm）. ——To refill coolant. ASSEMBLY OF RADIATOR Disassembly: ——To discharge coolant (refer to the coolant discharge process) ——To demount the cooling fan (refer to the disassembly process of the cooling fan). ——To demount the left and right wind boards by M10 sleeve. ——To take out the radiator. C-12 PDF created with pdfFactory Pro trial version www.
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——To take out the radiator Assembly: ——To assemble the radiator according to the order opposite of the disassembly order. ——To install the 2 wind boards onto the radiator by using self-tapping screws with their tightening torque of 6～7Nm. ——To install the radiator onto the front transom and put it straightly towards the positioning hole. ——To install the left and right tensioned plates of the radiator, and tighten the bolts of the plates with tightening torque of 5±1Nm.