Nissan Pathfinder (2008 year). Manual - part 198

DLN-168

< DISASSEMBLY AND ASSEMBLY >

[TRANSFER: ATX14B]

TRANSFER ASSEMBLY

1.

Check the inner and outer circumference, tooth face, and side-
face of the inner and outer gears for damage or abnormal wear.

2.

Measure the side clearance between the main oil pump housing
edge and the inner and outer gears.

3.

Make sure the side clearance is within specification. If the mea-
surement is out of specification, replace the inner and outer
gears with new ones as a set. Refer to 

DLN-186, "Inspection

and Adjustment"

.

Sub-oil Pump

1.

Check the inner and outer circumference, tooth face, and side-
face of the inner and outer gears for damage or abnormal wear.

2.

Measure the side clearance between the sub oil pump housing
edge and the inner and outer gears.

3.

Make sure the side clearance is within specification. If the mea-
surement is out of specification, replace the inner and outer
gears with new ones as a set. Refer to 

DLN-186, "Inspection

and Adjustment"

.

Control Valve

• Check resistance between the terminals of the clutch pressure

solenoid valve, 2-4WD shift solenoid valve, clutch pressure switch,
line pressure switch and the transfer fluid temperature sensor.
Refer to 

DLN-58, "Component Inspection"

 (clutch pressure sole-

noid valve), 

DLN-63, "Component Inspection"

 (2-4WD solenoid

valve), 

DLN-74, "Component Inspection"

 (clutch pressure switch),

DLN-78, "Component Inspection"

 (line pressure switch) and 

DLN-

71, "Component Inspection"

 (transfer fluid temperature sensor).

• Check the sliding faces of the control valves and plugs for abnor-

mality. If any is found, replace the control valve assembly with a
new one. Refer to 

DLN-186, "Inspection and Adjustment"

.

CAUTION:

Replace control valve body together with clutch return spring
as a set.

Specification

: 0.015 - 0.035 mm (0.0006 - 0.0014 in)

SDIA2174E

Specification

: 0.015 - 0.035 mm (0.0006 - 0.0014 in)

SDIA2173E

WDIA0199E

SMT947C

TRANSFER ASSEMBLY

DLN-169

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• Check each control valve spring for damage or distortion. Also

check its free length, outer diameter and wire diameter. If any dam-
age or fatigue is found, replace the control valve body with a new
one. Refer to 

DLN-186, "Inspection and Adjustment"

.

CAUTION:

Replace control valve body together with clutch return spring
as a set.

Clutch

• Check the drive plate facings and driven plate for damage, cracks

or other abnormality. If any abnormalities are found, replace with a
new one.

• Check the thickness of the drive plate facings and driven plate.

Refer to 

DLN-186, "Inspection and Adjustment"

.

CAUTION:

• Measure facing thickness at 3 points to take an average.
• Check all drive and driven plates.
• Check return spring for damage or deformation.
• Do not remove spring from plate.

Return Spring

• Check the stamped mark shown. Then, check that the free lengths,

(include thickness of plate) are within specifications. If any abnor-
mality is found, replace with a new return spring assembly of the
same stamped number. Refer to 

DLN-186, "Inspection and Adjust-

ment"

.

ASSEMBLY

Center Case

1.

Apply ATF to the new O-ring, and install it on the oil filter stud.

CAUTION:

Do not reuse O-rings.

2.

Install the oil filter stud to the oil filter.

SMT948C

SMT949C

SDIA2176E

SDIA3180E

DLN-170

< DISASSEMBLY AND ASSEMBLY >

[TRANSFER: ATX14B]

TRANSFER ASSEMBLY

3.

Apply ATF to the two new O-rings (1), and install them on the oil
filter (2).

CAUTION:

Do not reuse O-rings.

4.

Install the oil filter to the center case. Tighten the bolts to the
specified torque. Refer to 

DLN-149, "Disassembly and Assem-

bly"

.

CAUTION:

• Do not damage oil filter.
• Attach oil filter and tighten bolts evenly.

5.

Install the outer gear and inner gear into the sub oil pump hous-
ing, and measure the side clearance. Refer to "

DLN-149, "Dis-

assembly and Assembly"

Sub-oil Pump".

6.

Align the dowel pin hole and bolt hole of the sub oil pump
assembly with the center case. Install the sub oil pump cover.
Then tighten to the specified torque. Refer to 

DLN-149, "Disas-

sembly and Assembly"

7.

Apply ATF to the new O-ring and install it to the transfer motor.

CAUTION:

Do not reuse O-rings.

8.

Fit the double-flat end of the transfer motor shaft into the slot of
the sub-oil pump assembly. Then tighten to the specified torque.
Refer to 

DLN-149, "Disassembly and Assembly"

CAUTION:

Be sure to install connector bracket.

WDIA0285E

SDIA2136E

SDIA2135E

SDIA2328E

SDIA2787E

TRANSFER ASSEMBLY

DLN-171

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9.

Assemble the control valve assembly with the following procedure.

CAUTION:

• Do not reuse any part that has been dropped or damaged.
• Make sure valve is assembled in the proper direction.
• Do not use a magnet because residual magnetism stays during assembly.

a.

Clean the upper body (5), control valves (3) and springs (4) with
cleaning agent, and dry with compressed air.

b.

Dip the control valves in ATF, and apply ATF to the valve-mount-
ing area of the upper body.

c.

Install each control valve (3), springs (4), and plugs (2) to the
upper body (5), and install retainer plates (1) to hold them in
place.

CAUTION:

• To insert control valves into upper body, place upper

body on a level surface in order to prevent flaw or dam-
age.

• Make sure each control valve is smoothly inserted.

d.

Install the reverse balls, relief balls and relief springs, accumula-
tor pistons and valve springs to the upper body.

e.

Install the lower body and separator plate to the upper body.

CAUTION:

Do not reuse separator plates.

WDIA0284E

SDIA2127E

SDIA2126E

WDIA0200E

DLN-172

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TRANSFER ASSEMBLY

f.

With the lower body down, tighten the two bolts shown.

g.

Apply ATF to the new O-rings, and install them to each solenoid
valve, switch and terminal body.

CAUTION:

Do not reuse O-rings.

h.

Install the following to the control valve assembly:
• Clutch pressure solenoid valve
• Clutch pressure switch
• 2-4WD shift solenoid valve
• Line pressure switch
• Transfer fluid temperature sensor

10. Apply ATF to the new lip seals, and install them to the center

case.

CAUTION:

• Do not reuse lip seals.
• There are 2 kinds of lip seals (lip seal of large inner diam-

eter: 5 pieces, lip seal of small inner diameter: 2 pieces).
Confirm their position for installation.

11. Install the control valve assembly to the center case, and tighten

to the specified torque. Refer to 

DLN-149, "Disassembly and

Assembly"

.

CAUTION:

• Do not reuse any part that has been dropped or damaged.
• Make sure valve is assembled in the proper direction.
• Do not use a magnet because residual magnetism stays

during assembly.

12. Install the connector assembly into the center case, and secure

with a snap ring.

13. Apply ATF to the new O-rings, and install them on the oil

strainer.

CAUTION:

Do not reuse O-rings.

14. Install the oil strainer to the control valve assembly.

WDIA0198E

SDIA2123E

SDIA2121E

SDIA2122E

SDIA2782E

TRANSFER ASSEMBLY

DLN-173

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15. Tighten the bolts to the specified torque. Refer to 

DLN-149, "Dis-

assembly and Assembly"

.

16. Apply ATF to the new D-rings, and install them to the clutch pis-

ton.

CAUTION:

Do not reuse D-rings.

17. Install the thrust needle bearing race to the clutch piston.

18. Install the clutch piston to the center case as shown.

CAUTION:

Install so the fitting protrusion of clutch piston aligns with
the dent of center case.

19. Remove all the sealant from the oil pressure check port and

inside the center case.

CAUTION:

Remove old sealant adhering to mating surfaces. Also
remove any moisture, oil, or foreign material adhering to
application and mating surfaces.

20. Thread the new oil pressure check plug in 1 or 2 pitches and

apply sealant to the oil pressure check plug threads. Tighten to
the specified torque. Refer to 

DLN-149, "Disassembly and

Assembly"

.

SDIA2119E

SDIA2781E

SDIA2189E

SDIA2190E

SDIA3188E

DLN-174

< DISASSEMBLY AND ASSEMBLY >

[TRANSFER: ATX14B]

TRANSFER ASSEMBLY

• Use Genuine Silicone RTV or equivalent. Refer to 

GI-26, "Recommended Chemical Products and

Sealants"

.

CAUTION:

Do not reuse oil pressure check plug.

21. Install the new snap ring to the clutch hub using suitable tool.

CAUTION:

Do not reuse snap ring.

22. Apply petroleum jelly to the needle bearing, and install the nee-

dle bearing, spacer, clutch drum and clutch hub to the main-
shaft.

23. Install the new snap ring to the mainshaft.

CAUTION:

Do not reuse snap rings.

24. Apply ATF each plate, then install them into the clutch drum as

shown.

WDIA0101E

WDIA0129E

SDIA2192E

SDIA2193E

TRANSFER ASSEMBLY

DLN-175

< DISASSEMBLY AND ASSEMBLY >

[TRANSFER: ATX14B]

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25. Install the return spring assembly into the clutch hub.

26. Install the press flange by aligning the notches to the clutch hub

as shown.

27. Press the press flange to install the new snap ring into snap ring

groove on mainshaft using Tools.

CAUTION:

Do not reuse snap ring.

28. Install the new snap ring to the mainshaft using suitable tool.

CAUTION:

Do not reuse snap ring.

29. Apply ATF to the thrust needle bearing and install it on the press

flange.

SMT911C

SDIA2194E

Tool number

A: ST22452000 (J-34335)

B: ST30911000 (

—

)

C: KV31103300 (

—

)

SDIA2111E

SDIA2112E

SDIA2109E