Nissan Pathfinder (2007 year). Manual - part 235

FUEL INJECTOR AND FUEL TUBE

EM-37

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2007 Pathfinder

5.

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.

6.

Remove bolts which connects fuel tube (RH) and fuel tube (LH).

7.

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 go out from fuel
tube.

●

Be careful not to damage injector nozzles during
removal.

●

Do not bump or drop fuel injector.

●

Do not disassemble fuel injector.

8.

Disconnect fuel tube (RH) from fuel tube (LH).

9.

Loosen bolts, to remove fuel damper cap and fuel damper, if necessary.

PBIC2902E

PBIC2999E

EM-38

FUEL INJECTOR AND FUEL TUBE

2007 Pathfinder

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 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 new O-ring straight into fuel tube. Do not 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.

CAUTION:

●

Upper and lower O-ring are different. Be careful not to confuse them.

●

Handle O-ring with bare hands. Do not 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 injector. Do not twist it.

Reference value

: 130 N (13.3 kg, 29.2 lb)

Fuel tube side

: Blue

Nozzle side

: Brown

PBIC2903E

FUEL INJECTOR AND FUEL TUBE

EM-39

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2007 Pathfinder

3.

Install fuel injector to fuel tube as follows:

a.

Insert clip into clip mounting groove on fuel injector.

●

Insert clip so that protrusion “A” of fuel injector matches cutout
“A” of 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 protrusion “B” of fuel tube matches
cutout “B” of clip.

●

Make sure that fuel tube flange is securely fixed in flange fix-
ing 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.

Connect fuel tube (RH) to fuel tube (LH), and tighten bolts temporarily.

●

Tighten bolts with the specified torque after installing fuel tube and fuel injector assembly.

CAUTION:

●

Handle O-ring with bare hands. Do not 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 new O-ring straight into fuel tube. Do not twist it.

5.

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 bolts in two steps in numerical order as shown.

6.

Tighten bolts which connects fuel tube (RH) and fuel tube (LH) with the specified torque.

7.

Connect fuel injector harness connector.

8.

Install intake manifold collector. Refer to 

EM-19, "INSTALLATION"

 .

9.

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

PBIC3000E

Fuel injector tube assembly bolts

 1st step

: 10.1 N·m (1.0 kg-m, 7 ft-lb)

 2nd step

: 22.0 N·m (2.2 kg-m, 16 ft-lb)

PBIC2902E

EM-40

FUEL INJECTOR AND FUEL TUBE

2007 Pathfinder

INSPECTION AFTER INSTALLATION
Check on Fuel Leakage

1.

Turn ignition switch “ON” (with engine stopped). With fuel pressure applied to fuel piping, check for fuel
leakage at connection points.

NOTE:
Use mirrors for checking at points out of clear sight.

2.

Start engine. With engine speed increased, check again for fuel leakage at connection points.

CAUTION:

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

ROCKER COVER

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2007 Pathfinder

ROCKER COVER

PFP:13264

Removal and Installation

EBS00QBX

REMOVAL (LEFT BANK)

1.

Remove engine cover. Refer to 

EM-13, "REMOVAL"

 .

2.

Separate engine harness removing their brackets from rocker covers.

3.

Remove harness bracket from cylinder head, if necessary. 

4.

Remove ignition coil. Refer to 

EM-32, "Removal and Installation"

 .

5.

Remove PCV hoses from rocker covers.

6.

Remove oil filler cap from rocker cover (left bank), if necessary.

1.

Oil filler cap

2.

PCV hose

3.

PCV valve

4.

O-ring

5.

Rocker cover (right bank)

6.

PCV hose

7.

Rocker cover gasket (right bank)

8.

Rocker cover gasket (left bank)

9.

Rocker cover (left bank)

10. PCV hose

PBIC2905E

EM-42

ROCKER COVER

2007 Pathfinder

7.

Loosen bolts with power tool in reverse order as shown.

8.

Remove rocker cover gaskets from rocker covers.

9.

Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket (No. 1).

CAUTION:

Do not scratch or damage the mating surface when cleaning off old liquid gasket.

INSTALLATION (LEFT BANK)

1.

Apply liquid gasket using Tool to joint part among rocker cover,
cylinder head and camshaft bracket (No. 1) as follows:

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "Recommended Chemical Products and Sealants"

 .

NOTE:
The figure shows an example of left bank side [zoomed in
shows camshaft bracket (No. 1)].

a.

Refer to the figure “a” to apply liquid gasket to joint part of cam-
shaft bracket (No. 1) and cylinder head.

b.

Refer to the figure “b” to apply liquid gasket to the figure “a”
squarely.

2.

Install new rocker cover gasket to rocker cover.

3.

Install rocker cover.

●

Check if rocker cover gasket is not dropped from installation groove of rocker cover.

PBIC2906E

Tool number

: WS39930000 (

—

)

PBIC2474E

ROCKER COVER

EM-43

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4.

Tighten bolts in two steps separately in numerical order as
shown.

5.

Install oil filer cap to rocker cover (left bank), if removed.

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.

REMOVAL (RIGHT BANK)

1.

Remove intake manifold collector. Refer to 

EM-18, "REMOVAL"

 .

CAUTION:

Perform this step when engine is cold.

2.

Separate engine harness removing their brackets from rocker covers.

3.

Remove harness bracket from cylinder head (right bank). Refer to 

EM-92, "CYLINDER HEAD"

 .

4.

Remove ignition coil. Refer to 

EM-32, "Removal and Installation"

 .

5.

Remove PCV hoses from rocker cover.

6.

Remove PCV valve and O-ring from rocker cover (right bank), if necessary.

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)

PBIC2906E

EM-44

ROCKER COVER

2007 Pathfinder

7.

Loosen bolts with power tool in reverse order as shown.

8.

Remove rocker cover gaskets from rocker covers.

9.

Use scraper to remove all traces of liquid gasket from cylinder head and camshaft bracket (No. 1).

CAUTION:

Do not scratch or damage the mating surface when cleaning off old liquid gasket.

INSTALLATION (RIGHT BANK)

1.

Apply liquid gasket using Tool to joint part among rocker cover,
cylinder head and camshaft bracket (No. 1) as follows:

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "Recommended Chemical Products and Sealants"

 .

NOTE:
The figure shows an example of left bank side [zoomed in
shows camshaft bracket (No. 1)].

a.

Refer to the figure “a” to apply liquid gasket to joint part of cam-
shaft bracket (No. 1) and cylinder head.

b.

Refer to the figure “b” to apply liquid gasket to the figure “a”
squarely.

2.

Install new rocker cover gasket to rocker cover.

3.

Install rocker cover.

●

Check if rocker cover gasket is not dropped from installation groove of rocker cover.

PBIC2906E

Tool number

: WS39930000 (

—

)

PBIC2474E