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Cooling Specifications Drain Cooling System Flush Cooling System |
Filling Cooling System Radiator Removal/Installation Water Pump Removal/Installation |
Specification System type................................Thermo syphon with water pump assistance Radiator dimensions L24.................................13.8 x 23.6 x 1.5 in L26.................................13.8 x 23.6 x 1.9 in Radiator cap pressure L24.................................13 lb/square inch L26.................................13 lb/square inch Cooling system capacity(including heater) L24.................................1.75 gallons L26.................................2.1 gallons
Draining 1. Should the cooling system have to be left empty for any reason both the cylinder block and radiator must be drain, otherwise corrosion of the water pump impeller seal face may occur with subsequently early failure of the pump seal and bearings. 2. Place the car on a level surface and have a container that can hold at least two gallons which will be used beneath the radiator and sump. 3. Move the heater control on the facia to "HOT" and unscrew and remove the radiator cap. If car is hot, unscrew the cap slowly to reduce the pressure, but recommend to have a cloth over cap to remove the potential to be scalded when pressure is released. 4. Unscrew the radiator drain tap at the base of the radiator, usually located at the lower driver side of the radiator. Once coolant ceases to flow out of drain tap, repeat the operation by unscrewing the cyclinder block plug located on the left hand side of the engine.
Flushing 1. The radiator and waterways in the engine after some time may become restricted or even blocked with scale or sediment which will reduce the efficiency of the cooling system. When this does occur or if the coolant is a rust or dark color, the system should be flushed. In some cases reverse flushing may be required. 2. Place the heater controls to the "HOT" position and unscrew fully the radiator and cyclinder block drain taps. 3. Remove the radiator filler cap and place hose in the filler neck. Allow water to run through the system until it emerges engine with cold water. 4. In severe cases of coolant contamination or in the system, reverse flush by first removing the radiator cap and disconnecting the lower radiator hose at the radiator outlet pipe. 5. Remove the top radiator hose at the radiator connection end and remove the radiator. 6. Invert the radiator and hose in the bottom outlet pipe. Continue flushing until clear water comes from the radiator top tank. 7. To flush the engine water jackets, remove the thermostat and place a hose in the thermostat location until clear water runs from the water pump inlet. Cleaning by the use of chemical compounds is not recommended.
Filling 1. Place heater control to the "HOT" position. 2. Screw in the radiator drain tap and close the cylinder block drain tap. 3. Pour coolant slowly into the radiator, this is to ensure air pockets are expelled through the thermostat pin hole without being trapped in the waterways. 4. Fill with coolant until the level is 1.5 inches below the radiator filler neck and replace the filler cap. 5. Run the engine, check entire system for leaks and recheck coolant level periodically. Do not open radiator cap when system is "HOT" to the touch.
Radiator Removal and Installation 1. Unscrew the raditor drain plug and drain the coolant as described in draining the coolant section. 2. Disconnect the upper and lower radiator hoses. 3. On cars with A/C systems, remove the bolts which secure the lower shroud and withdraw the shroud backwards. 4. Car with automatic transmission, the inlet and outlet pipes which connect with the fluid cooler at the base of the radiator must be disconnected. 5. Unbolt the radiator. taking care to support the A/C condenser mounted just ahead of the radiator and remove the radiator upwards together with the upper shroud. 6. Inspect radiator for leaks, is leaks are evident it is recommended to repair or replace radiator. 7. Anytime the radiator is removed, take the time to clean off and debris or bugs from the radiator to ensure wind blockage is reduced to ensure proper cooling of the system. 8. Test the radiator pressure cap. If spring or seal is worn, replace cap with a 13 lb inch square cap, as mentioned in the cooling specification section. 9. Refitting the radiator is the reversal of the removal. Upon reinstallation of radiator, fill radiator with coolant as mentioned in filling section.
Thermostat Removal and Installation 1. Partially drain the cooling syatem(about 1/2 gallon) by drawning off the radiator drain plug. 2. Disconnect the radiator upper hose from thew termostat housing elbow located on the left-hand side of the cylinder head. 3. Unscrew and remove the two bolts from the thermostat housing cover and remove the housing and gasket. 4. Exstract the thermostat. Should removal be difficult by hand, cut around its rim with a sharp pointed knife, but do not try to lever or pry the unit out. 5. Recommend replacing thermostat instead of testing the operation of the unit. 6. Replace a new thermostat in the housing. Ensure housing mating faces where gasket will go are clean and free of old gasket. Replace housing face with new gasket and apply a joint compound. Attach housing top, reinstall the two bolts, and reconnect the upper radiator hose. Coolant must be refilled to proper level.
Water Pump Removal and Installation 1. Drain the cooling system. 2. Unbolt shroud from radiator. 3. Loosen alternator mounting and adjustment bolts and push alternator towards the engine so that the drive belt can be removed from the alternator and fan pulleys. 4. Unbolt and remove the fan blade/pulley assembly from the water pump hub. 5. Unscrew evenly and the remove the bolts which secure the water pump to the engine front cover. If the water pump is stuck tight, do not lever or pry it off but tap it gently with a hammer and a hardwood block to break the gasket seal. 6. Once water pump is removed, if evidence of leaking or corrosion is present, do not attempt to repair water pump, replace with a new unit. 7. Installation of a new to reconditioned water pump is athe reversal of the procedures above. Ensure a new gasket is used, and ensure old gasket is completely off. 8. Once water pump is installed, refill radiator to proper level.
