Thermostat

DESCRIPTION







The thermostat is a wax pellet driven, reverse poppet type and is located on the lower left side of engine, near the front. The thermostat is on the inlet side of the water pump. The thermostat has an air bleed located in the thermostat flange.

OPERATION
The thermostat's location on the inlet side of the engine provides for fast warm up and to optimize a consistent temperature in the engine. The thermostat is designed to prevent leakage through it and to guarantee a minimum engine operating temperature of 82°C (180°F). It will automatically reach wide open at a temperature of approximately 95°C (203°F) so that flow is not restricted as the temperature of the coolant rises under high ambient conditions to approximately 104°C (220°F). Above 102°C (215°F) the coolant temperature is controlled by the radiator, fan, and ambient temperature, not the thermostat.
^ When thermostat is closed; cooling system has no flow through the radiator, coolant flows through the engine heater core, coolant bottle and an internal engine bypass.
^ When thermostat is open; coolant flows through the radiator, heater core, coolant bottle and bypass.