Nissan Frontier. Manual - part 993

OIL PUMP

LU-33

< UNIT DISASSEMBLY AND ASSEMBLY >

[VQ40DE]

C

D

E

F

G

H

I

J

K

L

M

A

LU

N

P

O

Check regulator valve to oil pump cover clearance using the following formula.

• (Clearance) = D

1

 (Valve hole diameter) - D

2

 (Outer Diameter of

valve)

CAUTION:

• Coat regulator valve with engine oil.

• Check that it falls smoothly into the regulator valve hole by its

own weight.

ASSEMBLY

Installation is in the reverse order of removal.

NOTE:

• Install oil pump inner rotor with the groove facing the oil pump

cover side.

• Install the oil pump outer rotor with the punch mark facing the oil

pump cover side.

Regulator valve to oil pump cover
: Refer to 

LU-34, "Standard and Limit"

.

PBIC2829E

PBIC2830E

LU-34

< SERVICE DATA AND SPECIFICATIONS (SDS) 

[VQ40DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Standard and Limit

INFOID:0000000009479909

OIL PRESSURE

Unit: kPa (kg/cm

2, psi)

*: Engine oil temperature at 80

°C (176°F) 

OIL PUMP

Unit: mm (in)

REGULATOR VALVE

Unit: mm (in)

ENGINE OIL CAPACITY (APPROXIMATE)

Unit:   (US qt, Imp qt)

Engine speed

Approximate discharge oil pressure*

Idle speed

More than 98 (1.0, 14)

2,000 rpm

More than 294 (3.0, 43) 

6,000 rpm

More than 392 (4.0, 56.8) 

Body to outer rotor (Position 1)

0.120 - 0.195 (0.0047 - 0.0077)

Inner rotor to outer rotor tip (Position 2)

0.060 - 0.160 (0.0024 - 0.0063)

Body to inner rotor (Position 3)

0.030 - 0.070 (0.0012 - 0.0028)

Body to outer rotor (Position 4)

0.050 - 0.090 (0.0020 - 0.0035)

Inner rotor to brazed portion of housing 

0.045 - 0.091 (0.0018 - 0.0036)

Regulator valve to oil pump cover

0.025 - 0.070 (0.0010 - 0.0028)

Drain and refill

With oil filter change

5.1 (5-3/8, 4-1/2)

Without oil filter change

4.8 (5-1/8, 4-1/4)

Dry engine (Overhaul)

6.3 (6-5/8, 5-1/2)               

MA-1

MAINTENANCE

C

D

E

F

G

H

I

J

K

L

M

B

MA

SECTION 

MA

N

O

A

CONTENTS

MAINTENANCE

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

3

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

3

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................

3

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

4

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

4

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

4

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

4

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

6

GENERAL MAINTENANCE ................................

6

FOR USA AND CANADA ............................................

6

FOR USA AND CANADA : Explanation of General 
Maintenance ..............................................................

6

FOR MEXICO  ..............................................................

8

FOR MEXICO : General Maintenance  ......................

8

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

10

FOR USA AND CANADA ..........................................

10

FOR USA AND CANADA : Periodic Maintenance ....

10

FOR MEXICO  ............................................................

13

FOR MEXICO : Periodic Maintenance ....................

13

RECOMMENDED FLUIDS AND LUBRI-
CANTS ................................................................

16

FOR USA AND CANADA ..........................................

16

FOR USA AND CANADA : Fluids and Lubricants ....

16

FOR USA AND CANADA : SAE Viscosity Number 

....

17

FOR USA AND CANADA : Anti-Freeze Coolant 
Mixture Ratio  ...........................................................

18

FOR MEXICO  ............................................................

18

FOR MEXICO : Fluids and Lubricants  ....................

18

FOR MEXICO : SAE Viscosity Number ...................

19

FOR MEXICO : Engine Coolant Mixture Ratio  ........

20

ENGINE MAINTENANCE (QR25DE ENGINE) ...

22

DRIVE BELTS ............................................................

22

DRIVE BELTS : Exploded View  ..............................

22

DRIVE BELTS : Checking Drive Belts .....................

22

DRIVE BELTS : Tension Adjustment  ......................

22

ENGINE COOLANT  ...................................................

22

ENGINE COOLANT : System Inspection  ................

22

ENGINE COOLANT : Changing Engine Coolant ....

23

FUEL LINES ...............................................................

25

FUEL LINES : Checking Fuel Line  ..........................

25

AIR CLEANER FILTER  .............................................

25

AIR CLEANER FILTER : Removal and Installation 

....

25

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

26

ENGINE OIL : Inspection .........................................

26

ENGINE OIL : Changing Engine Oil  ........................

26

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

27

OIL FILTER : Removal and Installation ...................

27

SPARK PLUG  ............................................................

28

SPARK PLUG : Exploded View ...............................

28

SPARK PLUG : Removal and Installation  ...............

28

EVAP VAPOR LINES  ................................................

29

EVAP VAPOR LINES : Checking EVAP Vapor 
Line ..........................................................................

30

ENGINE MAINTENANCE (VQ40DE) ................

31

DRIVE BELT  ..............................................................

31

DRIVE BELT : Exploded View .................................

31

DRIVE BELT : Checking Drive Belts  .......................

31

DRIVE BELT : Adjustment .......................................

31

ENGINE COOLANT  ...................................................

31

MA-2

ENGINE COOLANT : System Inspection  ...............

31

ENGINE COOLANT : Changing Engine Coolant ...

32

FUEL LINES ..............................................................

35

FUEL LINES : Checking Fuel Line  .........................

35

FUEL FILTER ............................................................

35

FUEL FILTER : Changing Fuel Filter ......................

35

AIR CLEANER FILTER .............................................

35

AIR CLEANER FILTER : Exploded View  ...............

36

AIR CLEANER FILTER : Removal and Installation 

...

36

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

36

ENGINE OIL : Inspection ........................................

36

ENGINE OIL : Changing Engine Oil  .......................

37

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

37

OIL FILTER : Removal and Installation  ..................

37

SPARK PLUG  ...........................................................

38

SPARK PLUG : Exploded View ..............................

39

SPARK PLUG : Removal and Installation ..............

39

EVAP VAPOR LINES ................................................

40

EVAP VAPOR LINES : Checking EVAP Vapor 
Line .........................................................................

40

CHASSIS AND BODY MAINTENANCE ............

41

IN-CABIN MICROFILTER  .........................................

41

IN-CABIN MICROFILTER : Removal and Installa-
tion ..........................................................................

41

EXHAUST SYSTEM ..................................................

41

EXHAUST SYSTEM : Checking Exhaust System ...

42

TRANSMISSION OIL  ................................................

42

TRANSMISSION OIL : Checking the A/T Fluid 
(ATF) ......................................................................

42

TRANSMISSION OIL : Changing the A/T Fluid 
(ATF) ......................................................................

44

M/T OIL ......................................................................

45

M/T OIL : FS6R31A  ................................................

45

M/T OIL : Changing  ................................................

45

M/T OIL : Checking .................................................

45

M/T OIL : FS5R30A  ................................................

45

M/T OIL : Changing  ................................................

45

M/T OIL : Checking .................................................

46

TRANSFER FLUID ....................................................

46

TRANSFER FLUID : Replacement .........................

46

TRANSFER FLUID : Inspection  .............................

47

PROPELLER SHAFT ................................................

47

PROPELLER SHAFT : Checking Propeller Shaft ...

47

DIFFERENTIAL GEAR OIL  ......................................

47

DIFFERENTIAL GEAR OIL : Front Final Drive - 
R180A .....................................................................

48

DIFFERENTIAL GEAR OIL : Changing Differen-
tial Gear Oil  .............................................................

48

DIFFERENTIAL GEAR OIL : Checking Differential 
Gear Oil ...................................................................

48

DIFFERENTIAL GEAR OIL : Rear Final Drive - 
C200 .......................................................................

48

DIFFERENTIAL GEAR OIL : Changing Differen-
tial Gear Oil  .............................................................

48

DIFFERENTIAL GEAR OIL : Checking Differential 
Gear Oil ...................................................................

49

DIFFERENTIAL GEAR OIL : Rear Final Drive - 
M226 .......................................................................

49

DIFFERENTIAL GEAR OIL : Changing Differen-
tial Gear Oil  .............................................................

49

DIFFERENTIAL GEAR OIL : Checking Differential 
Gear Oil ...................................................................

50

DIFFERENTIAL GEAR OIL : Rear Final Drive - 
M226 (ELD) .............................................................

50

DIFFERENTIAL GEAR OIL : Changing Differen-
tial Gear Oil  .............................................................

50

DIFFERENTIAL GEAR OIL : Checking Differential 
Gear Oil ...................................................................

51

WHEELS ....................................................................

51

WHEELS : Balancing Wheels  .................................

51

WHEELS : Rotation  ................................................

53

BRAKE FLUID LEVEL AND LEAKS  ........................

53

BRAKE FLUID LEVEL AND LEAKS : On Board In-
spection ...................................................................

53

BRAKE LINES AND CABLES  ..................................

53

BRAKE LINES AND CABLES : Checking Brake 
Line and Cables  ......................................................

54

DISC BRAKE .............................................................

54

DISC BRAKE : Checking Disc Brake ......................

54

STEERING GEAR AND LINKAGE  ...........................

54

STEERING GEAR AND LINKAGE : Checking 
Steering Gear and Linkage  .....................................

55

POWER STEERING FLUID AND LINES  ..................

55

POWER STEERING FLUID AND LINES : Check-
ing Power Steering Fluid and Line  ..........................

55

AXLE AND SUSPENSION PARTS ...........................

55

AXLE AND SUSPENSION PARTS : Checking 
Axle and Suspension Parts .....................................

55

LOCKS, HINGES AND HOOD LATCH .....................

56

LOCKS, HINGES AND HOOD LATCH : Lubricat-
ing Locks, Hinges and Hood Latches  .....................

57

SEAT BELT, BUCKLES, RETRACTORS, AN-
CHORS AND ADJUSTERS  ......................................

57

SEAT BELT, BUCKLES, RETRACTORS, AN-
CHORS AND ADJUSTERS : Checking Seat 
Belts, Buckles, Retractors, Anchors and Adjusters 

...

57