Thermostat

DESCRIPTION







The engine thermostat is located at the front of the engine, below the intake manifold. The thermostat is a moveable sleeve type.

OPERATION
The thermostat's primary purpose is to maintain engine temperature in a range that will provide satisfactory engine performance and emission levels under all expected driving conditions.






The thermostat is unique because the center does not open and close like a conventional thermostat; it works like a sliding sleeve. the outside sleeve moves up or down, directing coolant flow through the engine block or through threaten bypass passages back to the water pump. during warm-up below 91°C (195°F) the thermostat begins to open (move downward) allowing coolant to flow from the water crossover through both the bypass,and the radiator. At 104°C (219°F) the thermostat will fully seat downward, blocking the path to the bypass, allowing all coolant to flow through the radiator.