Content .. 379 380 381 382 ..

Nissan Pathfinder (2010 year). Manual - part 381

EM-176

< ON-VEHICLE REPAIR >

[VK56DE]

FUEL INJECTOR AND FUEL TUBE

FUEL INJECTOR AND FUEL TUBE

Exploded View

INFOID:0000000005260518

Removal and Installation

INFOID:0000000005260519

CAUTION:

Do not remove or disassemble parts unless instructed as shown.

REMOVAL

WARNING:

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

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

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.

1. Remove the engine room cover. Refer to

EM-160, "Removal and Installation"

2. Release the fuel pressure. Refer to

EC-958, "Fuel Pressure Check"

3. Disconnect the battery negative terminal. Refer to

PG-78, "Removal and Installation"

4. Remove the air duct and resonator assembly. Refer to

EM-161, "Removal and Installation"

5. Disconnect the EVAP canister purge control solenoid valve harness connector.
6. Disconnect the fuel injector harness connectors.
7. Disconnect the fuel hose assembly from the fuel tubes (RH and LH).

Fuel tube (RH)

Cap

Fuel damper

O-ring

O-ring (blue)

Fuel injector

Clip

O-ring (brown)

O-ring

10. Fuel hose assembly

11. Fuel tube (LH)

KBIA2472E

2010 Pathfinder

FUEL INJECTOR AND FUEL TUBE

EM-177

< ON-VEHICLE REPAIR >

[VK56DE]

CAUTION:

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

• Do not separate the fuel connector and fuel hose.

8. Remove the fuel injectors with the fuel tube assembly.
9. Remove the fuel injector from the fuel tube.
a. Spread open to remove the clip.
b. Remove the 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.

10. Remove the fuel damper from each fuel tube, if necessary.

INSTALLATION

1. Install the fuel damper to each fuel tube, if removed.
a. Apply engine oil to the new O-ring and set it into the cup of the

fuel tube.

CAUTION:

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

• Lubricate new 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, do not scratch it with tool or fin-

gernails.

• Do not twist or stretch the O-ring.

b. Make sure that the backup spacer is in the O-ring connecting surface of the fuel damper.

NOTE:

The backup spacer is part of the fuel damper assembly.

c. Insert the fuel damper until it seats on the fuel tube.

CAUTION:

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

• Do not pressure-fit with excessive force.

d. Install the cap, and then tighten the bolts evenly.

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

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

CAUTION:

• Do not reuse O-rings.

• Upper and lower O-rings are different colors.

KBIA2506E

Reference value

:130 N (13.3 kg, 29.2 lb)

KBIA2473E

2010 Pathfinder

EM-178

< ON-VEHICLE REPAIR >

[VK56DE]

FUEL INJECTOR AND FUEL TUBE

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

• Lubricate new 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 the fuel injector to the fuel tube.
a. Insert new clip into clip mounting groove on the fuel injector.

• Insert clip so that lug

″

of fuel injector matches notch

″

the clip.

CAUTION:

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

• Do not allow the clip to interfere with the O-ring. If inter-

ference occurs, replace the O-ring.

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

• Insert it while matching it to the axial center.

• Insert fuel injector so that lug

″

of fuel tube matches notch

″

of the clip.

• Make sure that the fuel tube flange is securely seated in the

flange fixing groove on the clip.

Make sure that installation is complete by checking that the fuel

injector does not rotate or come off.

• Make sure that the protrusions of the fuel injectors are aligned

with the cutouts of the clips after installation.

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

CAUTION:

Do not let the tip of the injector nozzle come in contact with other parts.

• Tighten fuel tube assembly bolts

″

in illustration in two

steps.

5. Install the fuel hose assembly.

• 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 the flange and fuel tube after tightening the bolts.

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.

Fuel tube side

: Blue

Nozzle side

: Brown

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)

KBIA2474E

2010 Pathfinder

FUEL INJECTOR AND FUEL TUBE

EM-179

< ON-VEHICLE REPAIR >

[VK56DE]

• 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.

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

INSPECTION AFTER INSTALLATION

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

fuel leaks at the connections.

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

WARNING:

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

NOTE:

Use mirrors for checking on hidden points.

2010 Pathfinder

EM-180

< ON-VEHICLE REPAIR >

[VK56DE]

TIMING CHAIN

TIMING CHAIN

Exploded View

INFOID:0000000005260520

AWBIA0818GB

2010 Pathfinder

TIMING CHAIN

EM-181

< ON-VEHICLE REPAIR >

[VK56DE]

Removal and Installation

INFOID:0000000005260521

NOTE:

• To remove timing chain and associated parts, start with those on the LH bank. The procedure for removing

parts on the RH bank is omitted because it is the same as that for removal on the LH bank.

• To install timing chain and associated parts, start with those on the RH bank. The procedure for installing

parts on the LH bank is omitted because it is the same as that for installation on the RH bank.

REMOVAL

1. Remove the engine assembly from the vehicle. Refer to

EM-214, "Removal and Installation"

2. Remove the following components and related parts:

• Drive belt auto tensioner and idler pulley. Refer to

EM-150, "Drive Belt Auto Tensioner and Idler Pulley"

• Thermostat housing and water hose. Refer to

CO-53, "Removal and Installation"

• Power steering oil pump bracket. Refer to

ST-24, "Removal and Installation"

• Oil pan (lower), (upper) and oil strainer. Refer to

EM-169, "Removal and Installation"

• Rocker cover. Refer to

EM-174, "Removal and Installation"

• Generator and generator bracket. Refer to

CHG-21, "Removal and Installation"

• Water pump. Refer to

CO-51, "Exploded View"

3. Disconnect and remove the camshaft position sensor.
4. Disconnect and remove the intake valve timing control position sensor (RH and LH).
5. Disconnect and remove the intake valve timing control solenoid valve (RH and LH).
6. Remove the Intake valve timing control solenoid valve cover

(RH) (A) and Intake valve timing control solenoid valve cover

(LH) (B) as follows:

a. Loosen and remove the bolts in reverse order as shown.
b. Cut the liquid gasket and remove the covers using Tool.

CAUTION:

Do not damage mating surfaces.

Camshaft sprocket LH bank EXH

Camshaft sprocket LH bank INT
(VTC)

Camshaft sprocket RH bank INT
(VTC)

Camshaft sprocket RH bank EXH

Front cover

Intake valve timing control solenoid
valve (RH)

Intake valve timing control solenoid
valve cover (RH)

Intake valve timing control position
sensor (RH)

Intake valve timing control position
sensor (LH)

10. Intake valve timing control solenoid

valve cover (LH)

11.

Camshaft position sensor (PHASE)

Crankshaft pulley bolt

13. Crankshaft pulley

14.

Chain tensioner cover

15.

Front oil seal

16. Intake valve timing control solenoid

valve (LH)

17.

O-ring

18.

Timing chain tension guide RH bank

19. Timing chain slack guide (RH)

20.

Timing chain RH bank

21.

Timing chain LH bank

22. Chain tensioner (RH)

23.

Timing chain slack guide LH bank

24.

Timing chain tension guide LH bank

25. Chain tensioner (LH)

26.

O-ring

27.

Bracket

28. Oil pump drive spacer

29.

Oil pump assembly

30.

Crankshaft sprocket

To crankshaft

To camshaft LH bank EXH

To camshaft LH bank INT (VTC)

To camshaft RH bank INT (VTC)

To camshaft RH bank EXH

Apply sealant to mating side

Refer to

EM-181

Tool number

: KV10111100 (J-37228)

AWBIA0815ZZ

2010 Pathfinder

EM-182

< ON-VEHICLE REPAIR >

[VK56DE]

TIMING CHAIN

7. Obtain compression TDC of No. 1 cylinder as follows:
a. Turn the crankshaft pulley clockwise to align the TDC identifica-

tion notch (without paint mark) with the timing indicator on the

front cover.

b. At this time, make sure both intake and exhaust cam lobes of

No. 1 cylinder (top front on LH bank) point outside.

• If they do not point outside, turn crankshaft pulley once more.

8. Remove the crankshaft pulley.
a. Loosen the crankshaft pulley bolts using a hammer handle to

secure the crankshaft.

b. Remove the crankshaft pulley from the crankshaft using tool.

• Remove the crankshaft pulley using suitable tool. Set the bolts

in the two bolt holes [M6 x 1.0 mm (0.04 in)] on the front sur-

face.

NOTE:

The dimension between the centers of the two bolt holes is 61

mm (2.40 in).

9. Remove the front cover.
a. Loosen and remove the bolts in the reverse of order shown.
b. Cut the liquid gasket and remove the covers using Tool.

CAUTION:

Do not damage mating surfaces.

10. Remove the front oil seal using suitable tool.

CAUTION:

Do not damage front cover.

KBIA2476E

KBIA0400J

PBIC0053E

KBIA2477E

Tool number

: KV10111100 (J-37228)

KBIA2478E

2010 Pathfinder

TIMING CHAIN

EM-183

< ON-VEHICLE REPAIR >

[VK56DE]

11. Remove the oil pump drive spacer.

• Hold and remove the flat space of the oil pump drive spacer by

pulling it forward.

12. Remove the oil pump. Refer to

LU-30, "Removal and Installation"

13. Remove the chain tensioner on the LH bank using the following steps.

NOTE:

To remove the timing chain and associated parts, start with those on the LH bank. The procedure for

removing parts on the RH bank is omitted because it is the same as that for the LH bank.

a. Squeeze the return-proof clip ends using suitable tool and push

the plunger into the tensioner body.

b. Secure the plunger using stopper pin.

• Stopper pin is made from hard wire approximately 1 mm (0.04

in) in diameter.

c. Remove the bolts and chain tensioner.

WARNING:

Plunger, spring, and spring seat pop out when (squeezing)

return-proof clip without holding plunger head. It may

cause serious injuries. Always hold plunger head when

removing.

NOTE:

• Stop the plunger in the fully extended position by using the

return-proof clip (1) if the stopper pin is removed.

• Push the plunger (2) into the tensioner body while squeezing

the return-proof clip (1). Secure it using stopper pin (3).

14. Remove the timing chain tension guide and timing chain slack guide.
15. Remove the timing chain and crankshaft sprocket.
16. Loosen the camshaft sprocket bolts as shown and remove the

camshaft sprocket.

• A: Camshaft holding location

CAUTION:

To avoid interference between valves and pistons, do not

turn crankshaft or camshaft when timing chain is discon-

nected.

17. Repeat the same procedure to remove the RH timing chain and

associated parts.

INSPECTION AFTER REMOVAL

KBIA2512E

KBIA2479E

KBIA2483E

WBIA0799E

2010 Pathfinder

Content .. 379 380 381 382 ..