1. Radiator hose (lower); 2. Inlet pipe; 3. Rubber ring; 4. Thermostat; A. To the radiator
Removal
1. Drain the coolant.
Attention:
- Do not remove the radiator cap when the engine is hot. High-pressure coolant squirting out of the radiator can cause serious burns.
- Drain the coolant when it is cold.
- Do not spill coolant on the drive belt.
2. Remove the tank.
3. Disconnect the radiator hose (lower).
4. Remove the inlet manifold and thermostat.
When removing, the coolant remaining in the engine will spill out. Collect it in a container.
Original text on the website (nissanbook.ru)
Check after removal
Tie a string so that it is secured to the thermostat valves. Completely immerse them in a container of water. Heat by shaking.
The valve opening temperature is the temperature at which the valve opens and falls off the thread.
Continue heating. Check the lift height when fully opened.
After checking the lift height at full opening, reduce the water temperature and check the valve closing temperature (see table above).
If the measured values differ from the norm, replace the thermostat.
Installation
Installation is carried out in the reverse order of removal, taking into account the following:
Thermostat
Install the thermostat so that the groove of the rubber ring fits onto the thermostat flange along the entire perimeter.
Install the thermostat with the vibration valve facing up, as shown in the figure.
Inlet manifold
After installation, secure the intake manifold clamp to the dipstick guide.
Post-installation check
Check for engine coolant leaks using a radiator cap adapter (special tool: EG17650301) and the pump (suitable tool) (models without air conditioning) or using a pump and an adapter for the tank lid (models with air conditioning).
Start the engine and warm it up to normal operating temperature. Conduct a visual inspection to ensure there are no coolant leaks.