Nissan Pathfinder (2007 year). Manual - part 237

 

  Index      Manuals     Nissan Pathfinder (2007 year) - Service and Repair Manual

 

Search            copyright infringement  

 

 

 

 

 

 

 

 

Content      ..     235      236      237      238     ..

 

 

Nissan Pathfinder (2007 year). Manual - part 237

 

 

FRONT TIMING CHAIN CASE

EM-53

C

D

E

F

G

H

I

J

K

L

M

A

EM

2007 Pathfinder

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. 

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 after this step.

INSPECTION AFTER INSTALLATION
Inspection for Leaks

The following are procedures for checking fluid leaks, lubricant leaks and exhaust gases leaks.

Before starting engine, check oil/fluid levels including engine coolant and engine oil. If less than required
quantity, fill to the specified level. Refer to 

MA-11, "RECOMMENDED FLUIDS AND LUBRICANTS"

 .

Use procedure below to check for fuel leakage.

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

PBIC2631E

PBIC0918E

Step 1

: 44.1 N·m (4.5 kg-m, 33 ft-lb)

Step 2

:84

°

 - 90

°

 degrees clockwise

Tool number

: KV10117700 (J-44716)

WBIA0580E

EM-54

FRONT TIMING CHAIN CASE

2007 Pathfinder

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/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 gases, or any oil/fluids
including engine oil and engine coolant.

Bleed air from lines and hoses of applicable lines, such as in cooling system.

After cooling down engine, again check oil/fluid levels including engine oil and engine coolant. Refill to the
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 fluid*

Level

Leakage

Level

Fuel

Leakage

Leakage

Leakage

TIMING CHAIN

EM-55

C

D

E

F

G

H

I

J

K

L

M

A

EM

2007 Pathfinder

TIMING CHAIN

PFP:13028

Removal and Installation

EBS00QBZ

PBIC2917E

EM-56

TIMING CHAIN

2007 Pathfinder

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-46, "FRONT TIMING CHAIN CASE"

 .

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.

1.

Timing chain tensioner (secondary) 
(left bank)

2.

Internal chain guide

3.

Timing chain tensioner (secondary) 
(right bank)

4.

Camshaft sprocket (EXH)

5.

Timing chain (secondary)

6.

Timing chain (primary)

7.

Camshaft sprocket (INT)

8.

Camshaft sprocket (INT)

9.

Slack guide

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

Tool number

: KV10111100 (J-37228)

SEM728G

TIMING CHAIN

EM-57

C

D

E

F

G

H

I

J

K

L

M

A

EM

2007 Pathfinder

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 (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"

 .

PBIC2631E

KBIA1717J

SEM418G

Tool number

: KV10117700 (J-44716)

WBIA0580E

EM-58

TIMING CHAIN

2007 Pathfinder

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 protect removed 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 tilt, cant, or warp under a load.

PBIC2918E

PBIC2907E

PBIC2908E

Tool number

: KV10111100 (J-37228)

SEM156F

TIMING CHAIN

EM-59

C

D

E

F

G

H

I

J

K

L

M

A

EM

2007 Pathfinder

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

EM-60

TIMING CHAIN

2007 Pathfinder

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

 

 

 

 

 

 

 

Content      ..     235      236      237      238     ..