Nissan Pathfinder. Manual - part 554

FRONT TIMING CHAIN CASE

EM-55

< REMOVAL AND INSTALLATION >

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• When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from

spilling.

REMOVAL

1. Remove engine room cover. Refer to 

EM-23, "Removal and Installation"

.

2. Remove cowl top and cowl top extension. Refer to 

EXT-25, "Removal and Installation"

.

3. Drain the engine oil. Refer to 

LU-9, "Changing Engine Oil"

.

4. Remove (RH) road wheel and tire using a power tool. Refer to 

WT-58, "Adjustment"

.

5. Disconnect reservoir tank hose from the radiator and remove reservoir tank.
6. Remove the radiator. Refer to 

CO-15, "Removal and Installation"

.

7. Remove the fan shroud and motor assembly. Refer to 

CO-17, "Removal and Installation"

.

8. Remove battery tray and bracket. Refer to 

PG-92, "Removal and Installation"

.

9. Remove the electric power steering oil pump motor assembly and bracket. Refer to 

ST-52, "Removal and

Installation"

.

10. Remove drive belt and drive belt auto-tensioner. Refer to 

EM-12, "Removal and Installation"

.

11. Remove rocker covers, if necessary. Refer to 

EM-43, "Removal and Installation (LH)"

 (LH) and 

EM-44,

"Removal and Installation (RH)"

 (RH).

NOTE:

Necessary only when removing timing chains.

12. If removing the timing chains, obtain compression TDC of No. 1

cylinder as follows: 

a. Rotate crankshaft pulley clockwise to align timing mark (grooved

line without color) with timing indicator (A).

b. Check that intake and exhaust camshaft lobes on No. 1 cylinder

(RH of engine) are located as shown.

• If not, turn the crankshaft one revolution (360

°) and align as

shown.

NOTE:

The graphic shows the (RH) bank of the engine. The camshaft

lobes on the (LH) bank are clocked differently. 

13. Remove the water pump. Refer to 

CO-19, "Removal and Installation"

.

14. Lock the drive plate using Tool.

CAUTION:

Do not damage the ring gear teeth or the signal plate teeth behind the ring gear when setting the

Tool.

15. Remove the crankshaft pulley as follows: 
a. Loosen crankshaft pulley bolt and locate bolt seating surface at 10 mm (0.39 in) from its original position.

AWBIA1219GB

SEM418G

Tool number

:  — (J-50288)

EM-56

< REMOVAL AND INSTALLATION >

FRONT TIMING CHAIN CASE

b. Position a suitable tool at recess hole of crankshaft pulley to

remove crankshaft pulley.

CAUTION:

Do not use a puller claw on the outer diameter of the crank-

shaft pulley.

16. Remove the generator and generator bracket. Refer to 

CHG-29, "Removal and Installation"

.

17. Support the engine with suitable tool and remove the RH engine insulator, mount and bracket. Refer to

EM-102, "2WD : Exploded View"

 (2WD) or 

EM-106, "4WD : Exploded View"

 (4WD).

18. Remove upper oil pan bolts (1) and (2) as shown. Refer to 

EM-

37, "Removal and Installation (Upper Oil Pan)"

.

19. Disconnect the oil pressure switch harness connector.
20. Remove the lower oil pan. Refer to 

EM-36, "Removal and Installation (Lower Oil Pan)"

.

21. Remove engine mounting bracket (front). Refer to 

EM-102, "2WD : Exploded View"

.

22. Disconnect valve timing control solenoid valve harness connector.
23. Remove the intake valve timing control solenoid valve cover

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

(LH) (B). 

a. Loosen the intake valve timing control solenoid valve cover (RH)

and intake valve timing control solenoid valve cover (LH) bolts in

the reverse order as shown.

CAUTION:

The shaft in the intake valve timing control solenoid valve

cover is inserted into the center hole of the intake camshaft

sprocket. Remove the intake valve timing control solenoid

valve cover by pulling straight out until the intake valve tim-

ing control solenoid valve cover disengages from the cam-

shaft sprocket.

EMQ0477D

WBIA0259E

(A)

: Bank 1 (RH)

(B)

: Bank 2 (LH)

(C)

: Dowel pin hole

AWBIA1234GB

FRONT TIMING CHAIN CASE

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24. Remove the front timing chain case.
a. Loosen the front timing chain case bolts in the reverse order

shown.

b. Insert the appropriate size tool into the notch (A) at the top of the

front timing chain case as shown.

c. Pry off the case by moving the suitable tool (B) as shown.

• Cut liquid gasket for removal using Tool.

CAUTION:

• Do not use a screwdriver or similar tool.

• After removal, handle carefully so it does not bend or

warp under a load.

25. Remove O-rings (1) from rear timing chain case.

CAUTION:

Use new O-rings for installation.

26. Remove the front oil seal from the front timing chain case using

a suitable tool.

CAUTION:

Do not damage the front cover.

27. Remove all old liquid gasket from all the bolt holes and bolts. 

CAUTION:

Do not damage the threads or mating surfaces.

JPBIA1640ZZ

ALBIA0251ZZ

(A)

: Bank 1 (RH)

(B)

: Bank 2 (LH)

JPBIA1111ZZ

SEM829E

SEM161F

EM-58

< REMOVAL AND INSTALLATION >

FRONT TIMING CHAIN CASE

28. Use a scraper to remove all of the old liquid gasket from the

front timing chain case and opposite mating surfaces.

CAUTION:

Do not damage the mating surfaces.

INSTALLATION

1. Install dowel pins (right and left) into front timing chain case up

to a point close to taper in order to shorten protrusion length.

NOTE:

Be sure to place the dowel pins in original hole locations in the

front timing chain case.

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

new engine oil to the oil seal edges.

NOTE:

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

a. Install the new front oil seal so that it becomes flush with the

face of front timing chain case using suitable tool.

CAUTION:

Press fit straight and avoid causing burrs or tilting the oil

seal.

NOTE:

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

inverted.

SEM428G

PBIC1101E

SEM715A

PBIC0790E