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Home >> Nissan-Datsun >> 2004 >> Armada LE, 4WD >> Repair and Diagnosis >> Transmission >> Transfer Case >> Center Case - Assembly >> Assembly >> Control Valve

Control Valve

  1. Clean upper body, control valves and springs with cleaning agent, and apply air blow.
  2. Dip control valves in ATF, and apply ATF to the valve-mounting area of upper body.
  3. Install each control valve, spring, and plug to upper body, and fix it with retainer plates.
    CAUTION:
    • To insert control valves into upper body, place upper body on a level surface in order to prevent flaw or damage.
    • Make sure each control valve is smoothly inserted.
    Fig 1: Center Case Assembly (8 Of 33)
    G00731950Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Install reverse balls, relief balls and relief springs, accumulator pistons and valve springs to upper body.
  5. Install lower body and separator plate to upper body.
    • Do not reuse separator plates.
    Fig 2: Center Case Assembly (9 Of 33)
    G00731951Courtesy of NISSAN MOTOR CO., U.S.A.
  6. With lower body down, tighten two bolts in the position shown in Fig 3.
  7. Apply ATF or petroleum jelly to new O-ring, and install it to 2-4WD shift solenoid valve, terminal body, line pressure switch and 4WD solenoid valve. Install them to control valve assembly.
    • Do not reuse O-rings.
    Fig 3: Center Case Assembly (10 Of 33)
    G00731952Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Apply ATF or petroleum jelly to lip seals, and install them to center case.
    • Do not reuse lip seals.
    • There are 2 kinds of lip seals (lip seal of large inner diameter: 5 pieces, lip seal of small inner diameter: 2 pieces). Confirm the position before installation.
    Fig 4: Center Case Assembly (11 Of 33)
    G00731953Courtesy of NISSAN MOTOR CO., U.S.A.
  9. Install 14 and two bolts (step 6) and tighten them to specified torque.
    1. Control Valve bolts: 7.9 N.m (0.81 mm, 70 in-lb) 
  10. Install control valve assembly to center case, and tighten bolts.
    1. Control valve case bolts: 7.9 N.m (0.81 kg-m, 70 in-lb) 
    Fig 5: Center Case Assembly (12 Of 33)
    G00731954Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Remove terminal from center case installation hole, and secure terminal body with snap ring.
    Fig 6: Center Case Assembly (13 Of 33)
    G00731955Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Apply ATF or petroleum jelly to O-rings, and install them to oil strainer.
    CAUTION: Do not reuse O-rings.
  13. Install oil strainer to control valve assembly.
  14. Install mainshaft and clutch drum to center case. Refer to "MAINSHAFT AND CLUTCH DRUM ".
  15. Install front case assembly and rear case assembly. Refer to "Final Assembly ".
Fig 7: Center Case Assembly (14 Of 33)
G00731956Courtesy of NISSAN MOTOR CO., U.S.A.
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