REMOVAL & INSTALLATION
See Figures 1 and 2
The thermostat and its built-in by-pass valve is installed on the inlet side of the water pump. Its purpose is to prevent overheating of the coolant by controlling the flow into the engine from the radiator. During warm up, the thermostat remains closed so that the coolant within the engine heats quickly and aids the warming up process.
As the coolant temperature increases, the thermostat gradually opens, allowing a supply of lower temperature coolant (from the radiator) to enter the water pump and circulate through the engine.
- Drain the cooling system and save the coolant for reuse.
- Remove the water inlet housing and remove the thermostat. Carefully observe the positioning of the thermostat within the housing.
- Install the new thermostat in the housing, making sure it is in correctly. It is possible to install it backwards. Additionally, make certain that the air bleed valve