Ford Sierra Manual

Specifications
Cooling, heating and air conditioning systems / Specifications


System type
SOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressurised, with belt-driven coolant pump, crossflow radiator,
thermo-viscous fan, thermostat, and expansion tank CVH and DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Pressurised, with belt-driven coolant pump, crossflow radiator, electric fan, thermostat, and expansion tank Thermostat
Nominal temperature rating (fully open): SOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88ºC (190º F) CVH models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100ºC (212ºF) DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 102ºC (216ºF) Opening temperature:
SOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 to 89ºC (185 to 192ºF) CVH models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88ºC (190ºF) CVH (R6A type) models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 to 89ºC (185 to 192ºF) DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 to 89ºC (185 to 192ºF) Expansion tank cap opening pressure SOHC models:
Up to 1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.85 to 1.1 bar (12 to 16 lbf/in2) From 1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 to 1.25 bar (15 to 18 lbf/in2) CVH models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 to 1.25 bar (15 to 18 lbf/in2) DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.0 to 1.4 bar (15 to 20 lbf/in2) Coolant mixture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Chapter 1 Specifications System capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Chapter 1 Specifications Drivebelt tensions
Air conditioning system compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0 mm (0.4 in) deflection at the midpoint of the belt’s longest run under firm thumb pressure Coolant pump/alternator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10.0 mm (0.4 in) deflection midway between coolant pump and alternator (or power steering pump) pulleys under firm thumb pressure Torque wrench settings Nm lbf ft Radiator upper mounting nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 to 25 15 to 18 Radiator lower mounting bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 12 6 to 9 Coolant pump bolts:
SOHC models:
M8 bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 to 21 13 to 15 M10 bolts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35 to 42 26 to 31 CVH models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 11 6 to 8 CVH (R6A type) models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 to 10 5 to 7 DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 to 28 15 to 21 Thermostat housing bolts: SOHC/DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 to 20 13 to 15 CVH models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 11 6 to 8 CVH (R6A type) models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 12 6 to 9 Cooling fan shroud-to-radiator nuts/bolts . . . . . . . . . . . . . . . . . . . . . . . 8 to 11 6 to 8
Coolant pump pulley bolts: SOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 to 28 15 to 21 DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 to 25 15 to 18 Coolant pump/alternator drivebelt tensioner bolt: CVH models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 to 30 17 to 22 DOHC models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 to 97 52 to 72 Cooling fan blades-to-fan hub bolts (SOHC models) . . . . . . . . . . . . . . . 8 to 10 6 to 7
Air conditioning compressor-to-bracket bolts . . . . . . . . . . . . . . . . . . . . 65 to 75 48 to 55
Air conditioning compressor bracket-to-engine bolts: M10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 to 92 63 to 68 M12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 110 to 120 81 to 89 Air conditioning condenser fan assembly-to-condenser bolts: Models up to 1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 to 3 1 to 2 Models from 1987 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 to 11 6 to 8 Air conditioning condenser securing bolts (models from 1987) . . . . . . . 27 to 33 20 to 24


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