MAINTENANCE OF MAJOR COMPONENTS
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Replacing thermostat and precautions for handling
(1) Precautions for handling
The wax pallet type thermostat does not react as quickly as bellows type one to a variation of temperature
of coolant. Such relatively slow reaction is mainly due to the large heat capacity of the wax pellet type
thermostat. Therefore, to avoid a sharp rise of coolant temperature, it is essential to idle the engine
sufficiently before running it. In cold
weather, do not run the engine at overload or overspeed it immediately after engine starting.
(2) When draining out or replenishing coolant, do it slowly so that air is bled sufficiently from the entire cooling
system.
(3) Replacing thermostat
If the thermostat is detected defective, retrace with a new one.
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