Nissan Titan A60. Manual - part 464

FUEL INJECTOR AND FUEL TUBE

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FUEL INJECTOR AND FUEL TUBE

Exploded View

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Removal and Installation

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CAUTION:

Do not remove or disassemble parts unless instructed as shown.

REMOVAL

1. Disconnect the negative battery terminal. Refer to 

PG-76, "Removal and Installation"

.

2. Release fuel pressure. Refer to 

EC-473, "Fuel Pressure Check"

.

3. Remove air duct and resonator assembly. Refer to 

EM-25, "Exploded View"

.

4. Disconnect fuel injector harness connectors.
5. Disconnect EVAP canister purge control solenoid valve.
6. Disconnect fuel hose assembly from fuel tube (RH bank and LH bank).

CAUTION:

• While hoses are disconnected, plug them to prevent fuel from draining.

• Do not separate fuel connector and fuel hose.

7. Remove fuel injectors with fuel tube assembly.

1.

Fuel tube (RH bank)

2.

Cap

3.

Fuel damper

4.

O-ring

5.

O-ring (Standard model: Blue)
(FFV model: Black)

6.

Fuel injector

7.

Clip

8.

O-ring (Standard model: Brown)
(FFV model: Green)

9.

O-ring

10. Fuel hose assembly

11. Fuel tube (LH bank)

KBIA2472E

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< REMOVAL AND INSTALLATION >

FUEL INJECTOR AND FUEL TUBE

8. Remove fuel injector from fuel tube.
a. Spread open to remove clip.
b. Remove fuel injector from the fuel tube by pulling straight out.

CAUTION:

• Be careful with remaining fuel that may leak out from fuel

tube.

• Do not damage injector nozzles during removal.

• Do not bump or drop fuel injectors.

• Do not disassemble fuel injectors.

9. Remove fuel damper from each fuel tube.

INSTALLATION

1. Install fuel damper to each fuel tube.
a. Apply engine oil to O-ring and set it into the fuel tube.

CAUTION:

• Handle O-ring with bare hands. Never wear gloves.

• Lubricate O-ring with new engine oil.

• Do not clean O-ring with solvent.

• Make sure that O-ring and its mating part are free of for-

eign material.

• When installing O-ring, be careful not to scratch it with

tool or fingernails. Also be careful not to twist or stretch

O-ring.

b. Make sure that backup spacer is in the O-ring connecting sur-

face of fuel damper.

NOTE:

Backup spacer is fuel damper assembly part.

c.

Insert fuel damper until it seats on fuel tube.

CAUTION:

• Insert straight, making sure that the axis is lined up.

• Do not pressure-fit with excessive force.

d. Install cap, and then tighten bolts evenly by turns.

• After tightening bolts, make sure that there is no gap between cap and fuel tube.

2. Install O-rings to fuel injector paying attention to the items below.

CAUTION:

• Upper and lower O-rings are different. 

KBIA2506E

Reference value

:130 N (13.3 kg-f  29.2 lb-f)

Standard model
Fuel tube side

: Blue

Nozzle side

: Brown

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FUEL INJECTOR AND FUEL TUBE

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• Handle O-ring with bare hands. Never wear gloves.

• Lubricate O-ring with new engine oil.

• Do not clean O-ring with solvent.

• Make sure that O-ring and its mating part are free of foreign material.

• When installing O-ring, be careful not to scratch it with tool or fingernails. Also be careful not to

twist or stretch O-ring. If O-ring was stretched while it was being attached, do not insert it

quickly into fuel tube.

• Insert O-ring straight into fuel tube. Do not angle or twist it.

3. Install fuel injector to fuel tube.
a. Insert clip into clip mounting groove on fuel injector.

• Insert clip so that lug “A” of fuel injector matches notch “A” of

the clip.

CAUTION:

• Do not reuse clip. Replace it with a new one.

• Be careful to keep clip from interfering with O-ring. If

interference occurs, replace O-ring.

b. Insert fuel injector into fuel tube with clip attached.

• Insert it while matching it to the axial center.

• Insert fuel injector so that lug “B” of fuel tube matches notch

“B” of the clip.

• Make sure that fuel tube flange is securely fixed in flange fixing

groove on clip.

c. Make sure that installation is complete by checking that fuel

injector does not rotate or come off.

• Make sure that protrusions of fuel injectors are aligned with

cutouts of clips after installation.

4. Install fuel tube and fuel injector assembly to intake manifold.

CAUTION:

Be careful not to let tip of injector nozzle come in contact with other parts.

• Tighten fuel tube assembly bolts “a” to “b” in illustration and in

two steps.

5. Install fuel hose assembly.

• Follow precautions for fuel injector when handling O-ring.

• Insert connectors straight, making sure that the axis is lined up with fuel tube side to prevent O-ring from

being damaged.

• Tighten bolts evenly in several steps.

• Make sure that there is no gap between flange and fuel tube after tightening bolts.

6. Installation of the remaining components is in the reverse order of removal.

FFV model
Fuel tube side

: Black

Nozzle side

: Green

KBIA2507E

1st step

: 12.8 N·m (1.3 kg-m, 9 ft-lb)

2nd step

: 24.5 N·m (2.5 kg-m, 18 ft-lb)

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FUEL INJECTOR AND FUEL TUBE

INSPECTION AFTER INSTALLATION

After installing fuel tubes, make sure there are no fuel leaks at connections using the following steps.
1. Apply fuel pressure to fuel lines by turning ignition switch ON (with engine stopped). Then check for fuel

leaks at connections.

2. Start the engine and rev it up and check for fuel leaks at connections.

WARNING:

Do not touch the engine immediately after stopping, as engine becomes extremely hot.

NOTE:

Use mirrors for checking on hidden points.