General
System type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressurised with expansion tank/bottle and front-mounted radiator,
electric cooling fan, coolant pump and thermostat Pressure cap setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.8 or 1.0 bar (according to engine) Thermostat
Start-to-open temperature: XV, XW and XY series engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79° to 82°C
XU series engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82°C
TU9 series, TU3 series and TU1 series (Van) engines . . . . . . . . . . . . 88°C TU1 series (except Van) engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83°C
Fully-open temperature:
XU, XV, XW and XY series engines . . . . . . . . . . . . . . . . . . . . . . . . . . . 93°C
TU9 series, TU3 series and TU1 series (Van) engines . . . . . . . . . . . . 102°C TU1 series (except Van) engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96°C
Torque wrench settings Nm lbf ft Coolant pump attachments: XV, XW, and XY series engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 10
XU series engines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 11
TU series engines:
Housing inlet elbow (aluminium block engines) . . . . . . . . . . . . . . . 8 6 Housing bolts (aluminium block engines): Small bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 22
Large bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 37
Coolant pump bolts (cast-iron block engines): . . . . . . . . . . . . . . . . 15 11