Nissan Altima L32. Instruction — part 202
WATER PUMP
CO-45
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5. Turn the crankshaft pulley approximately 20
° clockwise so that
the timing chain on the timing chain tensioner side is loose.
NOTE:
When installing the timing chain tensioner, engine oil should be
applied to the oil hole and tensioner.
6. Install the timing chain tensioner.
7. Remove the stopper pin.
8. Install IVT control valve cover and water pump cover.
a. Before installing, remove all traces of sealant from mating surface of water pump cover and IVT control
valve cover using a scraper.
Also remove traces of sealant from the mating surface of the front cover.
b. Apply a continuous bead of RTV Silicone Sealant or equivalent, to mating surface of IVT control valve
cover and water pump cover. Refer to
GI-15, "Recommended Chemical Products and Sealants"
.
9. Install water drain plug on water pump side of cylinder block. Refer to
CO-35, "Changing Engine Coolant"
.
10. Install idler pulley. Refer to
EM-122, "Removal and Installation of Drive Belt Auto-tensioner"
11. Installation of remaining components is in the reverse order of removal.
• After installation refill engine coolant and check for leaks. Refer to
CO-35, "Changing Engine Coolant"
CAUTION:
Do not spill coolant in engine compartment. Use a shop cloth to absorb coolant.
• After starting engine, let idle for three minutes, then rev engine up to 3,000 rpm under no load to purge
air from the high-pressure chamber of the chain tensioner. The engine may produce a rattling noise.
This indicates that air still remains in the chamber and is not a matter of concern.
PBIC0848E
SLC448B
CO-46
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THERMOSTAT AND THERMOSTAT HOUSING
THERMOSTAT AND THERMOSTAT HOUSING
Removal and Installation
INFOID:0000000004205469
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator.
REMOVAL
CAUTION:
Perform when engine is cool.
1. Drain engine coolant from the radiator. Refer to
CO-35, "Changing Engine Coolant"
2. Remove drive belts. Refer to
EM-121, "Removal and Installation"
3. Remove water drain plug on water pump side of the engine. Refer to
EM-206, "Disassembly and Assem-
4. Disconnect lower radiator hose.
5. Remove engine coolant inlet and thermostat assembly.
• Do not disassemble engine coolant inlet and thermostat.
Replace them as a unit, if necessary.
INSPECTION AFTER REMOVAL
AWBIA0180GB
1.
Gasket
2.
Thermostat assembly
SLC962AA
THERMOSTAT AND THERMOSTAT HOUSING
CO-47
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• Place a thread so that it is caught in the valves of the thermostat.
Immerse fully in a container filled with water. Heat while stirring.
• The valve opening temperature is the temperature at which the
valve opens and the 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 tempera-
ture and check the valve closing temperature.
INSTALLATION
Installation is in the reverse order of removal.
• Install thermostat with jiggle valve facing upward.
• After installation refill engine coolant and check for leaks. Refer to
CO-35, "Changing Engine Coolant"
CAUTION:
Do not spill coolant in engine compartment. Use a shop cloth
to absorb coolant.
SLC949A
Thermostat
Standard Values
Valve opening temperature
82
°C (180°F)
Full-open lift amount
8.6 mm / 95
°C (0.339 in / 203°F)
Valve closing temperature
77
°C (171°F)
SLC948A
CO-48
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[VQ35DE]
WATER OUTLET AND WATER PIPING
WATER OUTLET AND WATER PIPING
Removal and Installation
INFOID:0000000004205470
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could occur from high pressure
coolant escaping from the radiator.
REMOVAL
CAUTION:
Perform when the engine is cold.
1. Drain engine coolant from drain plugs on radiator and both sides of cylinder block. Refer to
.
2. Remove engine cover using power tool.
3. Remove air duct and air cleaner case assembly. Refer to
EM-129, "Removal and Installation"
.
4. Remove radiator upper hose and heater hose.
5. Remove connector(s) from heater pipe.
6. Disconnect engine coolant temperature sensor electrical connector on water outlet.
7. Remove water outlet, heater pipe, water connector, and water bypass pipe nuts and bolts.
INSTALLATION
1. Installation is in the reverse order of removal.
• Securely insert each hose, and install a clamp at a position where it does not interfere with the pipe
bulge.
• When inserting heater pipe and water bypass pipe into water connector, apply neutral detergent to new
O-rings.
CAUTION:
ALBIA0476GB
1.
Water outlet
2.
Gasket
3.
O-ring
4.
Heater pipe
5.
Water connector
6.
Water bypass pipe
7.
Engine coolant temperature sensor
8.
Washer
A.
To electric throttle control actuator
B.
To heater
C. To radiator
D.
From heater or transmission oil cool-
er (if equipped)
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