nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Thermostat, Engine Cooling|Specifications|Page 3940 > < Thermostat, Engine Cooling|Specifications
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Thermostat: Service and Repair

WATER INLET AND THERMOSTAT ASSEMBLY

REMOVAL
1. Completely drain engine coolant. 

CAUTION:
^

Perform this step when engine is cold.

^

Do not spill engine coolant on drive belts.

2. Remove air duct and air cleaner case. 
3. Disconnect radiator hose (lower) and oil cooler hose from water inlet and thermostat assembly.

4. Remove water inlet and thermostat assembly.

CAUTION:  Do not disassemble water inlet and thermostat assembly. Replace them as a unit, if necessary.

INSPECTION AFTER REMOVAL
1. Check valve seating condition at ordinary room temperatures. It should seat tightly.

2. Check valve operation.

Thermostat, Engine Cooling|Specifications|Page 3940 > < Thermostat, Engine Cooling|Specifications