Nissan Pathfinder (2009 year). Manual - part 375

FRONT TIMING CHAIN CASE

EM-57

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i.

Fit lower end of front timing chain case tightly onto top face of oil
pan (upper). From the fitting point, make entire front timing chain
case contact rear timing chain case completely.

ii.

Since front timing chain case is offset for difference of bolt holes,
tighten bolts temporarily while holding front timing chain case
from front and top as shown.

iii.

Same as the previous step, insert dowel pin while holding front
timing chain case from front and top completely.

d.

Tighten bolts to the specified torque in numerical order as
shown.

e.

After all bolts are tightened, retighten them to the specified
torque in numerical order as shown.
• There are four type of bolts. 

5.

Install two bolts in front of oil pan (upper) in numerical order as
shown.

6.

Install right and left intake valve timing control covers as follows:

a.

Install new seal rings in shaft grooves.

PBIC1100E

PBIC2915E

Bolt position

Bolt diameter

1 - 5

: 10 mm (0.39 in)

6 – 25

: 6 mm (0.24 in)

Bolt position

Tightening specification

1 - 5

: 55.0 N·m (5.6 kg-m, 41 ft-lb)

6 – 25

: 12.7 N·m (1.3 kg-m, 9 ft-lb)

Front oil pan bolt torque

: 22.0 N·m (2.2 kg-m, 16 ft-lb)

PBIC2908E

PBIC2907E

2009 Pathfinder

EM-58

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FRONT TIMING CHAIN CASE

b.

Apply a continuous bead of liquid gasket using Tool to intake
valve timing control covers as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-26, "Recommended Chemical Products and Sealants"

.

c.

Install new collared O-rings in front timing chain case oil hole
(left and right sides).

d.

Being careful not to move seal ring from the installation groove, align dowel pins on front timing chain
case with the holes to install intake valve timing control covers.

e.

Tighten bolts in numerical order as shown.

7.

Install crankshaft pulley as follows:

a.

Install crankshaft pulley, taking care not to damage front oil seal.
• When press-fitting crankshaft pulley with plastic hammer, tap on its center portion (not circumference).

b.

Tighten crankshaft pulley bolt in two steps.

c.

Remove Tool. 

Tool number

: WS39930000 (

—

)

SBIA0492E

PBIC2631E

PBIC0918E

Step 1

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

Step 2

:84

°

 - 90

°

 degrees clockwise

Tool number

:   —   (J-48761)

WBIA0580E

2009 Pathfinder

FRONT TIMING CHAIN CASE

EM-59

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8.

Rotate crankshaft pulley in normal direction (clockwise when viewed from front) to confirm it turns
smoothly.

9.

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

INSPECTION AFTER INSTALLATION

• Before starting the engine, check oil/fluid levels including engine coolant and engine oil. If the levels are

lower than required quantity, fill to the specified level. Refer to 

MA-12, "Fluids and Lubricants"

.

• Use procedure below to check for fuel leakage.
• Turn ignition switch ON (with engine stopped). With fuel pressure applied to the fuel piping, check for fuel

leakage at the connection points.

• Start engine. With engine speed increased, check again for fuel leakage at connection points.
• Run engine to check for unusual noise and vibration.

NOTE:
If hydraulic pressure inside timing chain tensioner drops after removal and installation, slack in the guide
may generate a pounding noise during and just after engine start. However, this is normal. Noise will stop
after hydraulic pressure rises.

• Warm up engine thoroughly to make sure there is no leakage of fuel, exhaust gas, or any oil/fluids including

engine oil and engine coolant.

• Bleed air from passages in lines and hoses, such as in cooling system.
• After cooling down the engine, again check oil/fluid levels including engine oil and engine coolant. Refill to

specified level if necessary.

• Summary of the inspection items:

* Transmission/transaxle/CVT fluid, power steering fluid, brake fluid, etc.

Item

Before starting engine

Engine running

After engine stopped

Engine coolant

Level

Leakage

Level

Engine oil

Level

Leakage

Level

Other oils and fluids*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

Exhaust gas

—

Leakage

—

2009 Pathfinder

EM-60

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TIMING CHAIN

TIMING CHAIN

Exploded View

INFOID:0000000003939503

AWBIA0548GB

1.

Timing chain tensioner (secondary) (LH) 2.

Internal chain guide

3.

Timing chain tensioner (secondary) (RH)

4.

Camshaft sprocket (EXH)

5.

Timing chain (secondary)

6.

Timing chain (primary)

7.

Camshaft sprocket (INT)

8.

Camshaft sprocket (INT)

9.

Slack guide

2009 Pathfinder

TIMING CHAIN

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Removal and Installation

INFOID:0000000003939504

NOTE:
• This section describes procedures for removing/installing front timing chain case and timing chain related

parts, and rear timing chain case, when oil pan (upper) needs to be removed/installed for engine overhaul,
etc.

• To remove/install front timing chain case, timing chain, and its related parts without removing oil pan (upper),

refer to 

EM-51

.

REMOVAL

1.

Remove engine room cover using power tool. Refer to 

EM-24, "Removal and Installation"

.

2.

Release the fuel pressure. Refer to 

EC-484, "Fuel Pressure Check"

.

3.

Drain engine oil. Refer to 

LU-9, "Changing Engine Oil"

.

CAUTION:

• Perform this step when engine is cold.
• Do not spill engine oil on drive belts.

4.

Drain engine coolant from radiator. Refer to 

CO-12, "Changing Engine Coolant"

.

CAUTION:

• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.

5.

Remove radiator cooling fan assembly. Refer to 

CO-19, "Removal and Installation (Crankshaft driven

type)"

.

6.

Separate engine harnesses removing their brackets from front timing chain case.

7.

Remove drive belts. Refer to 

EM-13, "Removal and Installation"

.

8.

Remove power steering oil pump from bracket with piping connected, and temporarily secure it aside.
Refer to 

ST-21, "Removal and Installation"

.

9.

Remove power steering oil pump bracket. Refer to 

ST-21, "Removal and Installation"

.

10. Remove generator. Refer to 

CHG-20, "Removal and Installation"

.

11. Remove water bypass hose, water hose clamp and idler pulley bracket from front timing chain case.

12. Remove right and left intake valve timing control covers.

• Loosen bolts in reverse order as shown.
• Cut liquid gasket for removal using Tool.

CAUTION:

Shaft is internally jointed with camshaft sprocket (INT) cen-
ter hole. When removing, keep it horizontal until it is com-
pletely disconnected.

10.

Timing chain tensioner (primary)

11.

Crankshaft sprocket

12.

Collared O-ring

13.

O-ring

14.

Intake valve timing control cover

15.

Idler pulley

16.

Drive belt auto tensioner

17.

Cooling fan bracket

18.

Crankshaft pulley

19.

Front oil seal

20.

Water pump cover

21.

Chain tensioner cover

22.

Front timing chain case

23.

Rear timing chain case

24.

Water drain plug (front)

25.

Tension guide

26.

O-ring

A.

Refer to 

EM-61

B.

Refer to 

EM-61

C.

Refer to 

EM-61

Tool number

: KV10111100 (J-37228)

SEM728G

2009 Pathfinder

EM-62

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TIMING CHAIN

13. Remove collared O-rings from front timing chain case (left and

right side).

14. Remove rocker covers (right and left banks). Refer to 

EM-41, "Removal and Installation"

.

NOTE:
When only timing chain (primary) is removed, rocker cover does not need to be removed.

15. Obtain No. 1 cylinder at TDC of its compression stroke as follows:

NOTE:
When timing chain is not removed/installed, this step is not required.

a.

Rotate crankshaft pulley clockwise to align timing mark (A)
(grooved line without color) with timing indicator (B).

b.

Make sure that intake and exhaust cam noses on No. 1 cylinder
(engine front side of right bank) are located as shown.
• If not, turn crankshaft one revolution (360

°

) and align as

shown.

NOTE:
When only timing chain (primary) is removed, rocker cover does
not need to be removed. To make sure that No. 1 cylinder is at
its compression TDC, remove front timing chain case first. Then
check mating marks on camshaft sprockets. Refer to 

EM-81,

"Removal and Installation"

.

16. Remove crankshaft pulley as follows:

a.

Remove starter motor and set Tool. Refer to 

STR-22, "Removal

and Installation"

.

PBIC2631E

AWBIA0719ZZ

SEM418G

Tool number

:   —   (J-48761)

WBIA0580E

2009 Pathfinder

TIMING CHAIN

EM-63

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b.

Loosen crankshaft pulley bolt and locate bolt seating surface as
10 mm (0.39 in) from its original position.

CAUTION:

Do not remove crankshaft pulley bolt. Keep loosened
crankshaft pulley bolt in place to keep crankshaft pulley
from dropping.

c.

Pull crankshaft pulley with both hands to remove it.

17. Loosen two bolts in front of oil pan (upper) in reverse order as

shown.

18. Remove front timing chain case as follows:

a.

Loosen bolts with power tool in reverse order as shown.

b.

Insert suitable tool into the notch at the top of the front timing
chain case as shown (1).

c.

Pry off case by moving tool as shown (2).
• Cut liquid gasket for removal using Tool. 

CAUTION:

• Do not use screwdriver or something similar.
• After removal, handle front timing chain case carefully so

it does not twist, bend, or warp under a load.

PBIC2918E

PBIC2907E

PBIC2908E

Tool number

: KV10111100 (J-37228)

SEM156F

2009 Pathfinder

EM-64

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TIMING CHAIN

19. Remove O-rings from rear timing chain case.

20. Remove water pump cover and chain tensioner cover from front timing chain case, if necessary.

• Cut liquid gasket for removal using Tool. 

21. Remove front oil seal from front timing chain case using suitable

tool.

CAUTION:

Be careful not to damage front timing chain case.

22. Use a scraper to remove all traces of old liquid gasket from front

and rear timing chain cases and oil pan (upper), and liquid gas-
ket mating surfaces.

CAUTION:

Be careful not to allow gasket fragments to enter oil pan.

• Remove old liquid gasket from bolt hole and thread.

PBIC2548E

PBIC2909E

PBIC2910E

PBIC2084E

2009 Pathfinder