Nissan Frontier. Manual - part 743

ROCKER COVER

EM-161

< REMOVAL AND INSTALLATION >

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4. Tighten the rocker cover bolts in two steps in numerical order as

shown.
•

: Front

5. Install new O-ring and PCV valve to rocker cover (RH), if removed.

CAUTION:

Do not reuse O-rings.

6. Install PCV hose.

• Insert PCV hose by 25 to 30 mm (0.98 to 1.18 in) from connector end.

• When installing, be careful not to twist or come in contact with other parts.

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

• Check engine oil level and adjust as necessary. Refer to 

LU-22, "Inspection"

.

1st step

: 1.96 N·m (0.20 kg-m, 17 in-lb)

2nd step

: 8.33 N·m (0.85 kg-m, 74 in-lb)

AWBIA0730ZZ

EM-162

< REMOVAL AND INSTALLATION >

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FUEL INJECTOR AND FUEL TUBE

FUEL INJECTOR AND FUEL TUBE

Exploded View

INFOID:0000000009478122

Removal and Installation

INFOID:0000000009478123

WARNING:

• Put a “CAUTION FLAMMABLE” sign in the workshop.

• Be sure to work in a well ventilated area and furnish workshop with a CO

2

 fire extinguisher.

• Do not smoke while servicing fuel system. Keep open flames and sparks away from the work area.

• To avoid the danger of being scalded, do not drain engine coolant when engine is hot.

CAUTION:

Do not remove or disassemble parts unless instructed.

NOTE:

When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-

ing.

REMOVAL

1. Release the fuel pressure. Refer to 

EC-959, "Fuel Pressure Check"

.

2. Disconnect the battery negative terminal. Refer to 

PG-83, "Removal and Installation"

.

3. Remove the intake manifold collector. Refer to 

EM-142, "Removal and Installation"

.

CAUTION:

1.

Fuel tube (RH)

2.

O-ring

3.

Fuel tube (LH)

4.

Clip

5.

O-ring (blue)

6.

Fuel injector

7.

O-ring (brown)

8.

O-ring

9.

Spacer

10. Fuel damper

11. Fuel damper cap

12. Quick connector cap

13. Fuel feed hose

PBIC2957E

FUEL INJECTOR AND FUEL TUBE

EM-163

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Perform this step when engine is cold.

4. Disconnect the fuel quick connector on the engine side.
a. Remove quick connector cap.

b. With the sleeve side of Tool facing quick connector, install Tool

onto fuel tube.

c. Insert Tool into quick connector until sleeve contacts and goes

no further. Hold the Tool on that position.

CAUTION:

Inserting the Tool hard will not disconnect quick connector.

Hold Tool where it contacts and goes no further.

d. Pull the quick connector straight out from the fuel tube.

CAUTION:

• Pull quick connector holding it at the (A) position, as shown.

• Do not pull with lateral force applied. O-ring inside quick connector may be damaged.

• Do not reuse O-rings.

• Prepare container and cloth beforehand as fuel will leak out.

• Avoid fire and sparks.

• Do not expose parts to battery electrolyte or other acids.

• Do not bend or twist connection between quick connector and fuel feed hose during removal

and installation.

• Be sure to cover openings of disconnected pipes with

plug or plastic bag to avoid fuel leakage and entry of for-

eign materials.

5. Remove PCV hose between rocker covers (right and left banks).
6. Disconnect harness connector from fuel injector.
7. Loosen bolts in reverse order as shown, and remove fuel tube

and fuel injector assembly.

CAUTION:

Do not tilt it, or remaining fuel in pipes may flow out from

pipes.

LBIA0090E

Tool number

:  — (J-45488)

WBIA0295E

PBIC1899E

PBIC2902E

EM-164

< REMOVAL AND INSTALLATION >

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FUEL INJECTOR AND FUEL TUBE

8. Remove bolts which connects fuel tube (RH) and fuel tube (LH).
9. Remove fuel injector from fuel tube as follows:
a. Carefully open and remove clip.
b. Remove fuel injector from fuel tube by pulling straight.

CAUTION:

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

tube.

• Do not reuse O-rings.

• Do not damage injector nozzles during removal.

• Do not bump or drop fuel injectors.

• Do not disassemble fuel injectors.

10. Disconnect fuel tube (RH) from fuel tube (LH).
11. Loosen bolts, to remove fuel damper cap and fuel damper, if necessary.

INSTALLATION

1. Install fuel damper as follows:
a. Install new O-ring to fuel tube as shown.

• When handling new O-rings, be careful of the following cau-

tion:

CAUTION:

• Handle O-ring with bare hands. Do not wear gloves.

• Lubricate new O-ring with new engine oil.

• Do not reuse O-rings.

• 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, do not scratch it with tool or fin-

gernails. 

• Do not twist or stretch O-ring. If O-ring was stretched

while it was being attached, allow it to retract before

inserting it into fuel tube.

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

twist it.

b. Install spacer to fuel damper.
c.

Insert fuel damper straight into fuel tube.

CAUTION:

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

• Do not pressure-fit with excessive force.

• Insert fuel damper until (B) is touching (A) of fuel tube.

d. Tighten bolts evenly in turn.

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

2. Install new O-rings to fuel injector, paying attention to the following.

PBIC2999E

Reference value

: 130 N (13.3 kg, 29.2 lb)

PBIC2903E