Nissan Pathfinder (2007 year). Manual - part 236

ROCKER COVER

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4.

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

5.

Install new O-ring and PCV valve to rocker cover (right 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.

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-46

FRONT TIMING CHAIN CASE

2007 Pathfinder

FRONT TIMING CHAIN CASE

PFP:13599

Removal and Installation

EBS00QBY

NOTE:

●

This section describes removal/installation procedure of front timing chain case and timing chain related
parts without removing oil pan (upper) on vehicle.

●

When oil pan (upper) needs to be removed or installed, or when rear timing chain case is removed or
installed, remove oil pans (upper and lower) first. Then remove front timing chain case, timing chain
related parts, and rear timing chain case in this order, and installation is in the reverse order of removal.
Refer to 

EM-55, "TIMING CHAIN"

 .

●

Refer to 

EM-55, "TIMING CHAIN"

  for component parts location.

REMOVAL

1.

Remove engine cover with power tool. Refer to 

EM-13, "REMOVAL"

 .

2.

Release the fuel pressure. Refer to 

EC-79, "FUEL PRESSURE RELEASE"

 .

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-10, "DRAINING 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-17, "ENGINE COOLING FAN"

 .

6.

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

7.

Remove drive belts. Refer to 

EM-14, "Removal"

 .

8.

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

PS-21, "REMOVAL"

 .

9.

Remove power steering oil pump bracket. Refer to 

PS-21, "REMOVAL"

 .

10. Remove alternator. Refer to 

SC-31, "REMOVAL"

 .

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.

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

right side).

Tool number

: KV10111100 (J-37228)

SEM728G

PBIC2631E

FRONT TIMING CHAIN CASE

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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 (grooved
line without color) with timing indicator.

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-64,

"INSTALLATION"

 .

16. Remove crankshaft pulley as follows:

a.

Remove starter motor and set Tool. Refer to 

SC-17,

"REMOVAL"

 .

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 protect the crankshaft pul-
ley from dropping.

c.

Pull crankshaft pulley with both hands to remove it.

KBIA1717J

SEM418G

Tool number

: KV10117700 (J-44716)

WBIA0580E

PBIC2918E

EM-48

FRONT TIMING CHAIN CASE

2007 Pathfinder

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 tilt, cant, or warp under a load.

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. 

PBIC2907E

PBIC2908E

Tool number

: KV10111100 (J-37228)

SEM156F

PBIC2548E

FRONT TIMING CHAIN CASE

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

tool.

CAUTION:

Be careful not to damage front timing chain case.

22. Remove timing chain and related parts. Refer to 

EM-56, "REMOVAL"

 .

23. 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.

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

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

PBIC2909E

PBIC2910E

PBIC2084E

SEM926E

EM-50

FRONT TIMING CHAIN CASE

2007 Pathfinder

INSTALLATION

1.

Hammer dowel pins (right and left) into front timing chain case
up to a point close to taper in order to shorten protrusion length.

2.

Install new front oil seal on the front timing chain case.

●

Apply new engine oil to both oil seal lip and dust seal lip.

●

Install it so that each seal lip is oriented as shown. 

●

Press-fit oil seal until it becomes flush with front timing chain
case end face using suitable drift [outer diameter: 60 mm
(2.36 in)].

●

Make sure the garter spring is in position and seal lip is not
inverted.

3.

Install water pump cover and chain tensioner cover to front timing chain case, if removed.

●

Apply a continuous bead of liquid gasket using Tool to front
timing chain case as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "Recommended Chemical Products and Sealants"

.

PBIC2615E

SEM715A

PBIC2911E

Tool number

: WS39930000 (

—

)

PBIC2912E

FRONT TIMING CHAIN CASE

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4.

Install front timing chain case as follows:

a.

Apply a continuous bead of liquid gasket using Tool to front timing chain case back side as shown.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

GI-47, "Recommended Chemical Products and Sealants"

 .

b.

Install new O-rings on rear timing chain case.

c.

Assemble front timing chain case as follows:

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.

PBIC2913E

PBIC2548E

PBIC1100E

EM-52

FRONT TIMING CHAIN CASE

2007 Pathfinder

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.

●

There are four type of bolts. Refer to the following for locating
bolts.

e.

After all bolts tightened, retighten them to the specified torque in numerical order as shown.

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.

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-47, "Recommended Chemical Products and Sealants"

 .

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

Tool number

: WS39930000 (

—

)

SBIA0492E