General parameters
The system type is closed, pressurized, with a front-mounted radiator, a separate expansion tank, and an electric fan. Water pump driven by a multi-rib drive belt of auxiliary units or a timing belt (depending on the model).
Thermostat
Type - All models - Wax filled
Temperature of opening start,°C:
- Engines Y30DT/Z22SE/Z22YH — +82
- Engine Z20NET - +85
- Other models - +92
Tightening force of threaded connections, Nm
Engines Z16XE/Z18XE
Fan assembly to case mounting bolts - 5
Fan housing to radiator mounting bolts - 4
Lower Radiator Bracket Mounting Bolts - 35
Water pump housing mounting bolts - 8
Coolant Temperature Sensor - 14
Thermostat housing mounting bolts - 20
Z20NET Engine
Lower radiator bracket mounting bolts - 15
Thermostat housing mounting bolts - 10
Vacuum pump mounting bolts - 22
Water pump drain plug - 20
Engines Z22YH/Z22SE
Lower radiator bracket mounting bolts - 15
Water pump drain plug - 20
Thermostat housing mounting bolts - 8
Z32SE Engine
Water pump mounting bolts - 25
Timing Belt Cover Fastening Bolts - 8
Multi-rib belt tensioner mounting bolts - 35
Multi-rib belt guide roller mounting bolt - 40
Water pump pulley mounting bolts - 8 Nm + 30° + 30°
Z19DT Engine
Camshaft sensor mounting bolts - 11
Water pump mounting bolts - 25
Camshaft timing gear mounting bolt - 25
Intercooler mounting bolts - 4
Exhaust gas recovery system cooler mounting bolt-25
Exhaust gas regeneration cooler mounting nut - 25
Fastening of the exhaust gas regeneration system pipe - 25
Thermostat housing mounting bolts - 25
Coolant Temperature Sensor - 20
Z19DTH Engine
Receiver-dryer mounts - 4
Intercooler mounting bolts - 4
Lower radiator bracket mounting bolts - 15
Water pump housing mounting bolts - 25
Bolts for fastening the condenser to the radiator - 25
Cooling system hose mounting bolt - 9
Coolant Temperature Sensor - 20
Engines Y20DTH/Y22DTR
Intercooler to radiator mounting bolts - 4
Lower radiator bracket mounting bolts - 15
Water pump housing mounting bolts - 20
Water pump pulley mounting bolts - 20
Thermostat housing mounting bolts - 8
Coolant Temperature Sensor - 10
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