Nissan Maxima. Manual — part 302
CO-20
< REMOVAL AND INSTALLATION >
[VQ35DE]
WATER PUMP
3. Hold timing chain to the side (
) and install the water pump
(
).
CAUTION:
Do not allow cylinder block to interfere with the O-rings
when installing the water pump.
• Check that timing chain and water pump sprocket are
engaged.
• Tighten water pump bolts alternately and evenly to specifica-
tion.
4. Remove dust and foreign material completely from installation area of timing chain tensioner and rear tim-
ing chain case.
5. Turn the crankshaft pulley approximately 20
° clockwise so that
the timing chain on the timing chain tensioner side is loose.
6. Apply engine oil to the oil feed hole and timing chain tensioner and install the timing chain tensioner.
7. Remove the stopper pin (A).
8. Install intake valve timing control solenoid valve cover (RH) (bank 1) and water pump cover.
a. Before installing, remove all traces of liquid gasket from mating surface of water pump cover and intake
valve timing control solenoid valve cover (RH) (bank 1) using a scraper.
Also remove traces of liquid gasket from the mating surface of the front cover.
b. Apply a continuous bead of liquid gasket to mating surface of intake valve timing control solenoid valve
cover (RH) (bank 1) and water pump cover. Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
9. Install cylinder block front drain plug (1) on water pump side of
cylinder block.
• Apply liquid gasket to the threads of cylinder block front drain
plug.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
GI-21, "Recommended Chemical Products and Sealants"
.
10. Installation of remaining components is in the reverse order of removal.
SLC031B
PBIC0848E
AWBIA0905ZZ
Cylinder block front
drain plug
: 9.8 N·m (1.0 kg-m, 87 in-lb)
AWBIA0902ZZ
WATER PUMP
CO-21
< REMOVAL AND INSTALLATION >
[VQ35DE]
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• After installation refill engine coolant and check for leaks. Refer to
CO-11, "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.
CO-22
< REMOVAL AND INSTALLATION >
[VQ35DE]
THERMOSTAT AND THERMOSTAT HOUSING
THERMOSTAT AND THERMOSTAT HOUSING
Removal and Installation
INFOID:0000000009469271
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 radiator cap. Slowly turn it a
quarter of a turn to release built-up pressure. Carefully remove radiator cap by turning it all the way.
CAUTION:
Perform when engine is cool.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Drain coolant from radiator. Refer to
CO-11, "Changing Engine Coolant"
2. Disconnect reservoir hose and remove reservoir tank.
3. Disconnect the harness connector from the VTC solenoid (LH).
4. Disconnect lower radiator hose from thermostat assembly.
5. Remove thermostat assembly (water inlet).
CAUTION:
Do not disassemble thermostat assembly (water inlet).
Replace them as a unit, if necessary.
INSPECTION AFTER REMOVAL
1.
Gasket
2.
Thermostat assembly (water inlet)
AWBIA0847GB
SLC962AA
THERMOSTAT AND THERMOSTAT HOUSING
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[VQ35DE]
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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 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 tempera-
ture and check the valve closing temperature.
• If valve seating at measured values are out of standard range, replace water inlet and thermostat assembly.
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-11, "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
Refer to
Full-open lift amount
Refer to
Valve closing temperature
Refer to
SLC948A
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