Cooling System: Description and Operation

DESCRIPTION
The left hand cylinder head intake camshaft extends outside the left hand cam cover providing drive mechanism for the coolant pump. A removable one piece lip seal prevents oil leakage around the camshaft. A drive pulley is pressed onto the end of the camshaft and provides drive for the engine coolant pump using a small multi rib drive belt and tensioner mechanism. The coolant pump assembly is located inside the water crossover casting. The water crossover distributes coolant to the cylinder block and collects it from the cylinder head for delivery to the radiator. The water crossover also provides important functions for the EGR System. The cooling system includes the following components:
^ A radiator
^ A radiator surge tank and pressure cap
^ Electric engine cooling fans
^ Thermostat and housing
^ A water pump
^ All related hoses