Infiniti QX56 (Z62). Manual - part 653

 

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Infiniti QX56 (Z62). Manual - part 653

 

 

EM-52

< REMOVAL AND INSTALLATION >

FUEL INJECTOR AND FUEL TUBE

• Always install the back up ring (1) in the right direction as

instructed.

3.

Install fuel injector (1) to fuel rail (2) as per the following:

a.

Install fuel injector holder (5) to fuel injector.

CAUTION:

• Never reuse injector holder. Replace it with a new one.
• Be careful to keep fuel injector holder from interfering

with O-ring. If interference occurs, replace O-ring.

b.

Insert fuel injector into fuel rail with fuel injector holder attached.
• Insert it while matching it to the axial center.
• Insert so that protrusion (A) of fuel injector is aligned to cutout

(B).

c.

Check that installation is complete by checking that fuel injector
does not rotate or come off.
• Check that protrusions of fuel injectors and fuel rail are aligned

with cutouts of clips after installation.

4.

Insert insulator into mounting hole of fuel injector of cylinder head.

5.

Install fuel rail and fuel injector assembly to cylinder head.
• Tighten mounting bolts and nuts in two steps in numerical

order as shown in the figure.

6.

Connect injector harness connector.

7.

Install fuel feed tube (bank side) to fuel rail.

CAUTION:

• When inserting fuel feed tube (bank side) to fuel rail, press the flange part to install the tube.
• Never use O-ring with any scoring.
• Never reuse fuel feed tube (bank side), O-ring and back up ring.

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3

: O-ring (blue)

4

:  Backup  ring

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: Engine front

 1st step

: 10.0 N·m (1.0 kg-m, 89 in-lb)

 2nd step

: 20.5 N·m (2.1 kg-m, 15 ft-lb)

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FUEL INJECTOR AND FUEL TUBE

EM-53

< REMOVAL AND INSTALLATION >

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• Apply engine oil to O-ring.

• Tighten mounting bolts in numerical order as shown in the fig-

ure.

8.

Install fuel feed tube (pump side) to fuel feed tube (bank side) as per the following:

CAUTION:

Never reuse fuel feed tube (pump side).

a.

Apply engine oil to flare screw parts of high pressure pump side and fuel feed tube (bank side) side.

b.

Manually tighten 2 flare nuts without using a tool until they are seated to screw thread.

c.

Tighten mounting bolt (A).

d.

Tighten flare nuts in numerical order as shown in the figure.

9.

Install in the reverse order of removal.

Inspection

INFOID:0000000006289558

INSPECTION AFTER INSTALLATION

Check for Fuel Leakage

1.

Turn ignition switch “ON” (with the engine stopped). With fuel pressure applied to fuel piping, check that
there is no fuel leakage at connection points.
NOTE:
Use mirrors for checking at points out of clear sight.

2.

Start the engine. With engine speed increased, check again that there is no fuel leakage at connection
points.

CAUTION:

Never touch the engine immediately after it is stopped because the engine is extremely hot.

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: Engine front

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:To high pressure fuel pump

: Engine front

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EM-54

< REMOVAL AND INSTALLATION >

OIL PAN (LOWER) AND OIL STRAINER

OIL PAN (LOWER) AND OIL STRAINER

Exploded View

INFOID:0000000006289559

1.

Oil level gauge

2.

Oil level gauge guide

3.

O-ring

4.

Oil pressure switch

5.

O-ring

6.

Oil cooler

7.

Oil filter

8.

Relief valve

9.

Drain plug washer

10. Oil pan (lower)

11.

Oil strainer

12. Gasket

13. Oil temperature sensor

14. Baffle plate

15. Rear plate cover

16. Oil pan (upper)

17. O-ring

18. O-ring

19. O-ring

A.

Comply with the installation proce-
dure when tightening. Refer to 

LU-9, 

"Removal and Installation"

.

: Oil pan side

Refer to 

GI-4, "Components"

 for symbols in the figure.

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OIL PAN (LOWER) AND OIL STRAINER

EM-55

< REMOVAL AND INSTALLATION >

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Removal and Installation

INFOID:0000000006289560

REMOVAL

WARNING:

To avoid the danger of being scalded, never drain engine oil when engine is hot.

1.

Drain engine oil. Refer to 

LU-8, "Draining"

.

2.

Remove protector A and protector B. Refer to 

SCS-32, "FRONT TUBE ASSEMBLY : Exploded View"

.

3.

Remove front suspension rear cross member. Refer to 

TM-205, "2WD : Exploded View"

 (2WD models) or

TM-208, "4WD : Exploded View"

 (4WD models).

4.

Remove oil pan (lower) as per the following:

a.

Loosen mounting bolts in reverse order as shown in the figure to
remove.

b.

Insert the seal cutter [SST: KV10111100 (J-37228)] (A) between
oil pan (upper) and oil pan (lower).

CAUTION:

• Be careful not to damage the mating surfaces.
• Never insert a screwdriver. This damages the mating sur-

faces.

c.

Slide the seal cutter by tapping on the side of tool with a ham-
mer. Remove oil pan (lower).

5.

Remove oil strainer.

INSTALLATION

1.

Install oil strainer.

2.

Install oil pan (lower) as per the following:

a.

Use scraper (A) to remove old liquid gasket from mating sur-
faces.
• Remove old liquid gasket from the bolt holes and thread.

CAUTION:

Never scratch or damage the mating surfaces when clean-
ing off old liquid gasket.

: Engine front

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