Coolant Outlet: Description and Operation

Coolant Outlet Duct - Supercharged

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The coolant outlet duct on the supercharged engine performs exactly the same function as on the normally aspirated engine and connects to the same ports on the engine. The main physical difference is that the thermostat housing has been combined with the outlet duct and consequently, there is no separate housing assembly fitted above the water pump, as used on the normally aspirated engine. The illustration shows the outlet duct viewed from the engine.