Nissan Quest E52. Manual - part 872

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ENGINE

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SECTION 

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CONTENTS

ENGINE LUBRICATION SYSTEM

SYSTEM DESCRIPTION  ..............................

2

DESCRIPTION ....................................................

2

Engine Lubrication System ......................................

2

Engine Lubrication System Schematic ......................

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PRECAUTION ...............................................

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PRECAUTIONS ...................................................

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Precautions for Removing Battery Terminal  .............

4

Precaution for Liquid Gasket .....................................

4

Precautions For Engine Service ................................

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PREPARATION ............................................

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PREPARATION ...................................................

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Special Service Tool  .................................................

6

Commercial Service Tool  ..........................................

6

PERIODIC MAINTENANCE ..........................

8

ENGINE OIL  ........................................................

8

Inspection ..................................................................

8

Draining .....................................................................

9

Refilling ...................................................................

10

OIL FILTER  ........................................................

11

Removal and Installation .........................................

11

Inspection ................................................................

11

REMOVAL AND INSTALLATION  ...............

12

OIL COOLER  ....................................................

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Exploded View .........................................................

12

Removal and Installation  .........................................

12

Inspection ................................................................

13

UNIT DISASSEMBLY AND ASSEMBLY  ....

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OIL PUMP  .........................................................

14

Exploded View .........................................................

14

Removal and Installation  .........................................

14

Disassembly and Assembly .....................................

14

Inspection ................................................................

15

SERVICE DATA AND SPECIFICATIONS 
(SDS) ............................................................

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SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

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Periodical Maintenance Specification ....................

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Engine Oil Pressure ...............................................

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Oil Pump .................................................................

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Regulator Valve ......................................................

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< SYSTEM DESCRIPTION >

DESCRIPTION

SYSTEM DESCRIPTION

DESCRIPTION

Engine Lubrication System

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DESCRIPTION

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< SYSTEM DESCRIPTION >

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Engine Lubrication System Schematic

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< PRECAUTION >

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precautions for Removing Battery Terminal

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•  When removing the 12V battery terminal, turn OFF the ignition

switch and wait at least 30 seconds.
NOTE:
ECU may be active for several tens of seconds after the ignition
switch is turned OFF. If the battery terminal is removed before ECU
stops, then a DTC detection error or ECU data corruption may
occur.

•  For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be
detected.

•  After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

Precaution for Liquid Gasket

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LIQUID GASKET APPLICATION PROCEDURE

1.

Remove old liquid gasket adhering to the liquid gasket application surface and the mating surface.
• Remove liquid gasket completely from the liquid gasket application surface, mounting bolts, and bolt

holes.

2.

Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating
use) to remove adhering moisture, grease and foreign materials.

3.

Apply liquid gasket to the liquid gasket application surface.
Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-22, "Recommended Chemical Prod-

ucts and Sealants"

.

• Within 5 minutes of liquid gasket application, install in the mating component.
• If liquid gasket protrudes, wipe it off immediately.
• Never retighten mounting bolts or nuts after the installation.
• After 30 minutes or more have passed from the installation, fill engine oil and engine coolant.

Precautions For Engine Service

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DISCONNECTING FUEL PIPING

• Before starting work, check no fire or spark producing items are in the work area. 
• Release fuel pressure before disconnecting and disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.

DRAINING ENGINE COOLANT

Drain engine coolant and engine oil when the engine is cooled.

INSPECTION, REPAIR AND REPLACEMENT

Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.

REMOVAL AND DISASSEMBLY

• When instructed to use SST, use specified tools. Always be careful to work safely, avoid forceful or unin-

structed operations. 

• Exercise maximum care to avoid damage to mating or sliding surfaces.

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