Nissan Sentra Service Manual: Thermostat and thermostat housing
Exploded View
- Thermostat housing
- Gasket
- Rubber ring
- Thermostat
- Water inlet
- Clamp
- Radiator hose (upper)
- To radiator
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns
could occur from high-pressure
engine coolant escaping from the radiator. Wrap a thick cloth around the cap.
Slowly push down and
turn it a quarter turn to allow built-up pressure to escape. Carefully remove
the cap by pushing it down
and turning it all the way.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug
openings to prevent fluid from spilling.
Removal and Installation of Thermostat
REMOVAL
- Remove engine under cover. Refer to EXT-16, "Exploded View".
- Drain engine coolant from radiator. Refer to CO-12, "Changing Engine
Coolant".
CAUTION:
- Perform this step when the engine is cold.
- Do not spill engine coolant on the drive belt.
- Disconnect radiator hose (lower) from water inlet side. Refer to CO-15,
"Exploded View".
- Remove water inlet bolts, then remove water inlet and thermostat.
Inspection after removal
- Place a thread (A) so that it is caught in the valves of the thermostat
(1). Immerse fully in a container (B) filled with water. Heat
while stirring.
- The valve opening temperature is the temperature at which the
valve opens and the thermostat falls from the thread.
- Continue heating. Check the full-open lift amount.
NOTE:
The full-open lift amount standard temperature for the thermostat is
the reference value.
- After checking the full-open lift amount, lower the water temperature
and check the valve closing temperature.
- If valve setting at measured values are out of standard range,
replace thermostat.
Installation
Installation is in the reverse order of removal.
- Install the thermostat with the whole circumference of the flange
(A) fitting securely inside the rubber ring (1).
CAUTION:
Do not reuse rubber ring.
- Install the thermostat (2) into the thermostat housing (1) with the
jiggle valve (A) facing upwards. The position deviation may be
within the range of В±10В°.
- After installation, refill engine coolant and check for leaks. Refer to
CO-12, "Changing Engine Coolant" and CO-11, "System Inspection".
Removal and Installation of Thermostat Housing
REMOVAL
- Remove the generator. Refer to CHG-29, "Removal and Installation".
- Partially remove the fender protector (LH). Refer to EXT-28, "FENDER
PROTECTOR : Removal and
Installation - Front Fender Protector".
- Remove the thermostat housing bolts, then remove the thermostat housing.
- Remove thermostat if necessary. Refer to CO-21, "Removal and
Installation of Thermostat".
- Remove water pump if necessary. Refer to CO-19, "Removal and
Installation".
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
- Do not reuse gasket
- Do not spill engine coolant on the drive belt.
Inspection
INSPECTION AFTER INSTALLATION
After installation, refill engine coolant and check for leaks. Refer to
CO-11, "System Inspection" and CO-12,
"Changing Engine Coolant".
Exploded View
Gasket
Water pump
WARNING:
Do not remove the radiator cap when the engine is hot. Serious burns
could occur from high-pressure
engine coolant escaping from the radiator. ...
Exploded View
CVT MODELS
Water control valve
Rubber ring
Radiator hose (upper)
Clamp
Water outlet
CVT oil warmer hose (outlet)
Heater hose (inlet)
Heater hose (outlet)
Electr ...
Other materials:
Fuel filler cap warning system
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
The fuel filler cap warning system alerts the driver to the prevention of the
fuel filler being left uncapped and
malfunction occurrences after refueling, by turning ON the fuel filler cap
warning display on the combination
meter.
ECM judges a refuele ...
Rear disc brake
BRAKE PAD
BRAKE PAD : Inspection
PAD WEAR
Check pad thickness from an inspection hole on caliper body. Check
using a scale if necessary.
Wear limit thickness : Refer to BR-55, "Rear Disc
Brake".
DISC ROTOR
DISC ROTOR : Inspection
APPERANCE
Check surface of disc rotor for unev ...
Front combination lamp
Exploded View
Large cover (not serviceable)
Small cover (not serviceable)
Front combination lamp
Halogen lamp bulb (high beam)
Turn signal lamp bulb
Turn signal lamp bulb socket
LED harness connector
Halogen lamp bulb (high beam)
harness connector
Halogen lamp bulb (low bea ...
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