Nissan Pathfinder (2009 year). Manual - part 376

TIMING CHAIN

EM-65

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

water pump cover, chain tensioner cover and intake valve timing
control covers.

24. Remove timing chain tensioner (primary) as follows:
a.

Loosen clip of timing chain tensioner (primary), and release
plunger stopper (1).

b.

Insert plunger into tensioner body by pressing slack guide (2).

c.

Keep slack guide pressed and hold plunger in by pushing stop-
per pin through the tensioner body hole and plunger groove (3).

d.

Remove bolts and remove timing chain tensioner (primary).

25. Remove internal chain guide, tension guide and slack guide.

NOTE:
Tension guide can be removed after removing timing chain (pri-
mary).

26. Remove timing chain (primary) and crankshaft sprocket.

CAUTION:

After removing timing chain (primary), do not turn crankshaft and camshaft separately, or valves
will strike the piston heads.

27. Remove timing chain (secondary) and camshaft sprockets as follows:

SEM926E

PBIC2919E

PBIC2266E

2009 Pathfinder

EM-66

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[VQ40DE]

TIMING CHAIN

a.

Attach suitable stopper pin to the right and left timing chain ten-
sioners (secondary).
NOTE:
• Use approximately 0.5 mm (0.02 in) dia. hard metal pin as a

stopper pin.

• For removal of timing chain tensioner (secondary), refer to

EM-81

. [Removing camshaft bracket (No. 1) is required.]

b.

Remove camshaft sprocket (INT and EXH) bolts.
• Secure the hexagonal portion of camshaft using wrench to

loosen bolts.

CAUTION:

Do not loosen bolts by securing anything other than the
camshaft hexagonal portion.

c.

Remove timing chain (secondary) together with camshaft sprockets.
• Turn camshaft slightly to secure slackness of timing chain on timing chain tensioner (secondary) side.
• Insert 0.5 mm (0.020 in)-thick metal or resin plate between tim-

ing chain and timing chain tensioner plunger (guide). Remove
timing chain (secondary) together with camshaft sprockets
with timing chain loose from guide groove.

CAUTION:

Be careful of plunger coming off when removing timing
chain (secondary). 
NOTE:
Camshaft sprocket (INT) is a one piece integrated design
sprockets for timing chain (primary) and for timing chain (sec-
ondary).

• When handling camshaft sprocket (INT), be careful of the fol-

lowing:

CAUTION:

• Handle carefully to avoid any shock to camshaft

sprocket.

• Do not disassemble. (Do not loosen bolts (A) as shown).

28. Remove water pump. Refer to 

CO-22, "Removal and Installation"

.

PBIC2047E

KBIA1698J

PBIC1978E

PBIC2920E

2009 Pathfinder

TIMING CHAIN

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29. Remove rear timing chain case as follows:

a.

Loosen and remove bolts using power tool in reverse order as
shown.

b.

Cut liquid gasket using Tool and remove rear timing chain case.

CAUTION:

• Do not remove plate metal cover of oil passage.
• After removal, handle rear timing chain case carefully so

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

30. Remove O-rings from cylinder head and camshaft bracket    (No.

1).

31. Remove O-rings from cylinder block.

32. Remove timing chain tensioners (secondary) from cylinder head if necessary.

a.

Remove camshaft brackets (No. 1). Refer to 

EM-81, "Removal and Installation"

.

b.

Remove timing chain tensioners (secondary) with stopper pin attached.

Tool number

: KV10111100 (J-37228)

PBIC2921E

PBIC2922E

SBIA0496E

PBIC0788E

2009 Pathfinder

EM-68

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TIMING CHAIN

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

and rear timing chain cases, and opposite mating surfaces.

• Remove old liquid gasket from bolt hole and thread.

34. Use scraper to remove all traces of liquid gasket from water

pump cover, chain tensioner cover and intake valve timing con-
trol covers.

INSPECTION AFTER REMOVAL

Check for cracks and any excessive wear at link plates. Replace
chain if necessary.
• In the same way as for the LH bank, inspect the timing chain and

associated parts on the RH bank.

PBIC2910E

PBIC2084E

SEM926E

PBIC0282E

2009 Pathfinder

TIMING CHAIN

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INSTALLATION

NOTE:
The figure above shows the relationship between the mating mark on each timing chain and that on the corre-
sponding sprocket, with the components installed.

1.

Install timing chain tensioners (secondary) to cylinder head if removed. 

a.

Install timing chain tensioners (secondary) with stopper pin attached and new O-ring.

b.

Install camshaft brackets (No. 1). Refer to 

EM-81, "Removal and Installation"

.

2.

Install rear timing chain case as follows:

a.

Install new O-rings onto cylinder block.

WBIA0716E

1.

Internal chain guide

2.

Camshaft sprocket (intake)

3.

Mating mark (blue link)

4.

Mating mark (punched)

5.

Secondary timing chain tensioner

6.

Mating mark (copper link)

7.

Secondary timing chain

8.

Camshaft sprocket (exhaust)

9.

Tensioner guide

10. Water pump

11.

Crankshaft sprocket

12. Mating mark (notched)

13. Primary timing chain

14. Slack guide

15. Primary timing chain tensioner

16. Mating mark (back side)

17. Crankshaft key

PBIC0788E

2009 Pathfinder

EM-70

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[VQ40DE]

TIMING CHAIN

b.

Install new O-rings to cylinder head and camshaft bracket
(No. 1).

c.

Apply liquid gasket using Tool to rear timing chain case back side as shown.
Use Genuine RTV Silicone Sealant or equivalent. Refer to 

GI-26, "Recommended Chemical Prod-

ucts and Sealants"

.

CAUTION:

• For “A”, completely wipe off liquid gasket covering the area shown.
• Apply liquid gasket on installation position of water pump and cylinder head very completely.

d.

Align rear timing chain case with dowel pins (right and left) on cylinder block and install rear timing chain
case.
• Make sure O-rings stay in place during installation to cylinder block, cylinder head and camshaft bracket

(No. 1).

SBIA0496E

Tool number

: WS39930000 (

—

)

PBIC2924E

2009 Pathfinder

TIMING CHAIN

EM-71

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e.

Tighten bolts in numerical order as shown.
• There are two type of bolts with different torque specifications.

Refer to the following for installing bolts. 

f.

After all bolts are tightened, retighten them to the specified torque in numerical order as shown.
• If liquid gasket protrudes, wipe it off immediately.

g.

After installing rear timing chain case, check the surface height
difference between following parts on oil pan (upper) mounting
surface.

• If not within the standard, repeat the installation procedure.

3.

Install water pump with new O-rings. Refer to 

CO-22, "Removal and Installation"

.

4.

Make sure that dowel pin hole, dowel pin of camshaft and crank-
shaft key are located as shown. (No. 1 cylinder at compression
TDC)
• NOTE:

Though camshaft does not stop at the position as shown, for
the placement of cam nose, it is generally accepted camshaft
is placed for the same direction of the figure.

CAUTION:

Hole on small dia. side must be used for intake side dowel pin hole. Do not misidentify (ignore big
dia. side).

5.

Install timing chains (secondary) and camshaft sprockets as follows:

CAUTION:

Mating marks between timing chain and sprockets slip easily. Confirm all mating mark positions
repeatedly during the installation process.

Bolt length

Bolt position

Torque specification

20 mm 
(0.79 in)

1, 2, 3, 6, 7, 8, 
9, 10

: 12.7 N·m (1.3 kg-m, 9 ft-lb)

16 mm 
(0.63 in)

4, 5, 11

: 12.7 N·m (1.3 kg-m, 9 ft-lb)

16 mm 
(0.63 in)

12 through 26

: 15.0 N·m (1.5 kg-m, 11 ft-lb)

PBIC2921E

Standard

Rear timing chain case to lower cylinder block:

–0.24 to 0.14 mm (–0.0094 to 0.0055 in)

PBIC2925E

Camshaft dowel pin hole (intake side)

: At cylinder head upper face side in each bank.

Camshaft dowel pin (exhaust side)

: At cylinder head upper face side in each bank.

Crankshaft key

: At cylinder head side of right bank.

KBIA1073E

2009 Pathfinder

EM-72

< ON-VEHICLE REPAIR >

[VQ40DE]

TIMING CHAIN

a.

Push plunger of timing chain tensioner (secondary) and keep it
pressed in with stopper pin.

b.

Install timing chains (secondary) (8) and camshaft sprockets
(INT (1) and EXH (9)).
• Left bank mating marks (6)
• Align the timing chain mating marks (secondary) (2) (blue

color link) with the ones on camshaft sprockets (INT and EXH)
(4), (5), (7) and (10) (punched), and install them.
NOTE:
• Mating marks for camshaft sprocket (INT) are on the back

side of camshaft sprocket (secondary).

• There are two types of mating marks, circle (7), (10) and

oval (4), (5) types. They should be used for the right and left
banks, respectively.

• Align dowel pin (3) and pin hole on camshafts with the groove

(11) and dowel pin on sprockets, and install them.

• On the intake side, align pin hole on the small diameter side of

the camshaft front end with dowel pin (3) on the back side of
camshaft sprocket, and install them.

• On the exhaust side, align dowel pin on camshaft front end

with pin groove (11) on camshaft sprocket, and install them.

• In case that positions of each mating mark and each dowel pin

do not fit on mating parts, make fine adjustment to the position holding the hexagonal portion on cam-
shaft with wrench or equivalent.

• Bolts for camshaft sprockets must be tightened in the next step. Tightening them by hand is enough to

prevent the dislocation of dowel pins.

• It may be difficult to visually check the dislocation of mating

marks during and after installation. To make the matching eas-
ier, make a mating mark on the top of sprocket teeth and its
extended line in advance with paint.

SEM430G

Right bank

: Use circle type (7) and (10).

Left bank

: Use oval type (4) and (5).

WBIA0689E

SEM811G

2009 Pathfinder