Pic. 2.63. Cooling system.
1 - radiator; 2 - radiator mounting cross member; 3 - casing of the electric fan; 4 - electric fan; 5 - fan impeller; 6 - upper radiator hose; 7 - lower radiator hose; 8 - hose; 9 - branch pipe; 10 - expansion tank of GMA and GPA engines of vehicles with base and L configurations; 11 - expansion tank for GMA and GPA engines of GL and Ghla vehicles; 12 - expansion tank for engines of all models, except for GMA and GPA, L and LS configuration cars; 13 - expansion tank for engines of all models, except for GMA and GPA, GL.Ghia and XR3 vehicles; 14 — stopper of a broad tank of engines of the GMA and GPA models; 15 — stopper of an expansion tank of engines of all models, except GMA and GPA; 16, 17, 18 and 19 - expansion tank hoses; 20 - emergency liquid level sensor.
Radiator 1 tubular-lamellar, steel with transverse movement of the coolant. The radiator of the cooling system of the LRA and L7 engines has an increased number of tubes. The safety valve of the engine cooling system of the GLA model is installed in the radiator cap, the valve opening pressure is 0.91 kgf / cm2. For GMA and GPA engines, the safety valve is installed in the thermostat housing plug. for engines of other models in the plug of the expansion tank: opening pressure 0.85-1.10 kgf / cm2. For vehicles with GL equipment. Ghia and XR3 expansion tank has an emergency coolant level sensor.
The coolant pump is centrifugal type. The engine pump of the GLA model is collapsible, has sealing glands. The gap between the impeller and the pump housing is 0.80 mm. protrusion of the pump shaft beyond the drive flange 1.5 mm. The pump drive is a belt drive for auxiliary units. On other engine models, the water pump is driven by a timing belt. From April 1983 to cars «Escort» a new two-piece toothed belt cover and a new coolant pump are installed. and the pump of the previous model is not supplied as spare parts.
If you are replacing the water pump on a vehicle with an old timing belt cover, you will need to purchase a new pump kit consisting of the pump, gasket, new timing belt cover, and new lower radiator hose. On vehicles with a two-piece toothed belt cover, it is sufficient to replace the pump and gasket. Electric fan 4 has a plastic four-bladed impeller mounted on the motor shaft, which is turned on and off by a temperature sensor installed in the upper radiator pipe for GMA and GPA engines (in the thermostat housing on engines of other models). Switching temperature 106±2°С. Power. consumed by the electric fan - 90 W at a crankshaft speed of 2600 rpm.
The thermostat with a solid filler is installed in the housing near the ignition distributor (on GLA engines at the front of the cylinder head). Brand and designation of the engine thermostat GLA Calorstat Vemet V 28-V-5447. the beginning of the main valve opening is 65-89°С, the full opening is 99-102°С, the full stroke of the main valve is 7.5 mm. For used thermostats, the valve opening temperatures are extended by±3°C.
Auxiliary drive belt for Motorcraft 78 GLA engine F-60301. Kleber Ventifiex 1130, the total value of its deflection in both directions, measured in the middle of the branch between the generator pulley and the water pump pulley 13 mm when pressed with a finger (pic. 2.64).
Coolant with a density of 1.07 - a mixture of 45% antifreeze brand Motorcraft Plus SM 97 V-1002 A for GLA engines, Ford Super SSM - 97 V-9103-A for engines of other models and 55% distilled water. Coolant change - every two years. Cooling system capacity: engines of GLA models - 5.2 l; GMA, GPA - 6.2 l; JPA - 7.1 l; LPA, LUA and LRA - 6.9 l; L7 - 7.8l
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