Nissan X-Trail 32. Manual - part 1110

OIL SEPARATOR

EM-337

< REMOVAL AND INSTALLATION >

[R9M]

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4.

Remove A/C pipe bracket bolt 

.

5.

Disconnect harness connectors from injectors.

6.

Loosen oil separator mounting bolts in the reverse order as
shown in the figure.

7.

Lift the A/C pipe 

 to the top left side, and remove oil separator

.

8.

Remove gaskets.

INSTALLATION

1.

Install gaskets to oil separator.

CAUTION:

Check the gasket is not dropped.

2.

Install oil separator. 
• Tighten mounting bolts in two steps separately in numerical

order as shown in the figure.

3.

Install in the reverse order of removal, for the rest of parts.

: A/C pipe bracket

: Vehicle front

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: Vehicle front

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1st step: 5.0 N·m (0.51 kg-m, 44 in-lb)

2nd step: 10.0 N·m (1.0 kg-m, 89 in-lb)

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EM-338

< REMOVAL AND INSTALLATION >

[R9M]

INJECTION TUBE AND FUEL INJECTOR

INJECTION TUBE AND FUEL INJECTOR

Exploded View

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*: 2 types of injection rail

• Fuel rail pressure sensor with color ring:

CAUTION:

Do not disassemble fuel rail pressure sensor.

• Fuel rail pressure sensor without color ring: Tighten the sensor (specified toruqe).

: 130 N·m (13.3 kg-m, 96 ft-lb)

Fuel return hose

Clip

Fuel injector

Fuel injector spacer

Fuel injector support

Injection tube (No.1)

Injection tube (No.2 - 4)

Injection tube (center)

Fuel hose

Injection rail protector seal

Fuel hose

Injection rail protector seal

Injection rail (with fuel rail pressure 

sensor)

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Bracket

Injection rail protector seal

Clip

Fuel hose

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

EM-

339, "Removal and Installation"

To fuel pump

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Always replace after every disassembly.

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INJECTION TUBE AND FUEL INJECTOR

EM-339

< REMOVAL AND INSTALLATION >

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Removal and Installation

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REMOVAL

CAUTION:

• Be sure to read “Precautions for Diesel Equipment”. Refer to 

EM-289, "Precaution for Diesel Equip-

ment"

.

• Wait until the fuel temperature drops before carrying out any work.
• Order the special high pressure injection circuit plug kit.
• It is forbidden to open an fuel injector. If you open an fuel injector by mistake, you will have to

change it.

NOTE:
It is possible to replace a single injection tube.

1.

Remove the battery. Refer to 

PG-138, "R9M : Exploded View"

.

2.

Remove oil separator. Refer to 

EM-336, "Exploded View"

.

3.

Remove fuel return hose.
• Move without removing the fuel return hose clip using a flat

bade screwdriver.

4.

Disconnect and remove fuel hose. 

5.

Remove fuel collector and injection tube (center).

6.

Remove injection tube (No. 1, 2, 3, 4).

7.

Remove fuel injector. While rotating it to left and right, raise it to remove.
• If fuel injector spacer remains in cylinder head, hook it with tip of a flat-bladed screwdriver and pull it out.

CAUTION:

• Handle fuel injector carefully without giving an impact.
• Never disassemble fuel injector.

8.

Remove injection rail and injection rail protector seal.

CAUTION:

In case of fuel rail pressure sensor fitted with a color ring: 
• replacing the sensor is forbidden
• the injector rail must be completely replaced if the fuel rail pressure sensor fails.

9.

Plug all the holes in the injection circuit. Refer to 

EM-289, "Precaution for Diesel Equipment"

.

INSTALLATION

1.

If an injector is replaced, not the IMA code and the corresponding cylinder number and perform “injector
adjustment value registration”. Refer to 

EC-947, "Work Procedure"

.

2.

Install fuel injector, injection tubes and fuel rail with the following procedure:

a.

Install fuel injector spacer to fuel injector, and insert them into cylinder head.

CAUTION:

• Completely remove any foreign material among fuel injector and cylinder head.

b.

Install injection rail, injection tube (center).
• Finger tighten until contact the injection tube nuts.

c.

Install fuel injector support.

CAUTION:

Be sure to fit fuel injector support without looseness.

d.

Tighten fuel injector support bolt.

: Moving direction

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Fuel injector support bolt

7 N·m (0.7 kg-m, 62 in-lb)

EM-340

< REMOVAL AND INSTALLATION >

[R9M]

INJECTION TUBE AND FUEL INJECTOR

NOTE:
In case of cylinder head replacement, pre-tighten the fuel injector support bolt and after loosen the fuel
injector support bolt. 

e.

Turn 180 degrees clockwise (angle tightening).

f.

Install injection tube (No. 1, 2, 3, 4) in the original position (temporarily).
• Finger tighten until contact the injection tube nuts.

CAUTION:

Never put injection tubes under stress.

g.

Tighten injection rail mounting bolts and all injection tube nuts (specified torque).

3.

Install fuel return hose onto fuel injectors with the following procedure.
• NOTE:

Failure to observe the following procedure may lead to an immobilizing default.

• Fit the clip on the fuel return hose.
• Install fuel return hose onto fuel injectors.
• Always carry out a “push-pull” test 

, to check that the fuel

return hose is correctly fitted onto fuel injector.

• Always carry out a “push-pull” test, to check that the fuel return

hose is correctly fitted onto fuel hose.

4.

Install in the reverse order of removal, for the rest of parts.

Inspection

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INSPECTION AFTER INSTALLATION

• When replacing fuel injector, this procedure must be performed. Refer to 

EC-943, "Special Repair Require-

ment List"

• Start the engine and check for fuel leak for one minute after starting.

CAUTION:

After any operation, check that there are no diesel leaks. Refer to 

EM-289, "Precaution for Diesel

Equipment"

.

Pre- tightening fuel injec-
tor support bolt (in case of 
cylinder head replace-
ment)

20 N·m (2.0 kg-m, 15 ft-lb)

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