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Section 473 (Automatic Transaxle Overhaul & Diagnostics): Re4F04B: Disassembly: Disassembly

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain ATF through drain plug.
  2. Remove torque converter.
    Fig 1: Removing Torque Converter
    G00741242Courtesy of NISSAN MOTOR CO., U.S.A.
  3. Check torque converter one-way clutch using check tool as shown at left.
    1. Insert check tool into the groove of bearing support built into one-way clutch outer race.
    2. When fixing bearing support with check tool, rotate one- way clutch spline using screwdriver.
    3. Check that inner race rotates clockwise only. If not, replace torque converter assembly.
    Fig 2: Inserting Check Tool Into Groove Of Bearing Support
    G00741243Courtesy of NISSAN MOTOR CO., U.S.A.
  4. Remove A/T fluid level gauge.
  5. Remove A/T fluid charging pipe and fluid cooler tube.
    Fig 3: Removing A/T Fluid Charging Pipe And Fluid Cooler Tube
    G00741244Courtesy of NISSAN MOTOR CO., U.S.A.
  6. Set manual shaft to position P.
  7. Remove park/neutral position (PNP) switch.
    Fig 4: Removing Park/Neutral Position (PNP) Switch
    G00741245Courtesy of NISSAN MOTOR CO., U.S.A.
  8. Remove oil pan using power tools, and oil pan gasket.
  9. Check foreign materials in oil pan to help determine causes of malfunction. If the fluid is very dark, smells burned, or contains foreign particles, the frictional material (clutches, band) may need replacement. A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and clutches to stick and can inhibit pump pressure.
    • If frictional material is detected, replace radiator after repair of A/T. Refer to  RADIATOR  .
    Fig 5: Checking Foreign Materials In Oil Pan
    G00741246Courtesy of NISSAN MOTOR CO., U.S.A.
  10. Remove control valve assembly according to the following procedures.
    1. Remove control valve assembly mounting bolts I, X and O  .
      Fig 6: Identifying Control Valve Assembly Mounting Bolts
      G00741247Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove stopper ring from terminal body.
      • Do not expand stopper ring excessively  .
      Fig 7: Removing Stopper Ring From Terminal Body
      G00741248Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Push terminal body into transaxle case and draw out terminal cord assembly.
      Fig 8: Removing Terminal Cord Assembly
      G00741249Courtesy of NISSAN MOTOR CO., U.S.A.
  11. Remove manual valve from control valve assembly.
    Fig 9: Removing Manual Valve From Control Valve Assembly
    G00741250Courtesy of NISSAN MOTOR CO., U.S.A.
  12. Remove return spring from servo release accumulator piston.
    Fig 10: Removing Return Spring From Servo Release Accumulator Piston
    G00741251Courtesy of NISSAN MOTOR CO., U.S.A.
  13. Remove servo release accumulator piston with compressed air.
    CAUTION:
    • Strong flow of air will push the accumulator piston out along with a splash of oil. Cover the area with paper towels and blow air little by little to avoid this.
    • Wrap the removed accumulator piston in a paper towel.
  14. Remove O-rings from servo release accumulator piston.
    Fig 11: Removing Servo Release Accumulator Piston
    G00741252Courtesy of NISSAN MOTOR CO., U.S.A.
  15. Remove N-D accumulator piston and return spring with compressed air.
    CAUTION:
    • Strong flow of air will push the accumulator piston out along with a splash of oil. Cover the area with paper towels and blow air little by little to avoid this.
    • Wrap the removed accumulator piston in a paper towel.
  16. Remove O-rings from N-D accumulator piston.
    Fig 12: Removing N-D Accumulator Piston And Return Spring
    G00741253Courtesy of NISSAN MOTOR CO., U.S.A.
  17. Check accumulator pistons and contact surface of transaxle case for damage.
  18. Check accumulator return springs for damage and free length.
    Fig 13: Checking Accumulator Pistons And Contact Surface Of Transaxle Case
    G00741254Courtesy of NISSAN MOTOR CO., U.S.A.
  19. Remove lip seals.
    Fig 14: Removing Lip Seals
    G00741255Courtesy of NISSAN MOTOR CO., U.S.A.
  20. Remove low & reverse brake tube and oil sleeve.
    Fig 15: Removing Low & Reverse Brake Tube And Oil Sleeve
    G00741256Courtesy of NISSAN MOTOR CO., U.S.A.
  21. Remove converter housing according to the following procedures.
    1. Remove converter housing mounting bolts using power tools.
    2. Remove converter housing by tapping it lightly.
      Fig 16: Removing Converter Housing Mounting Bolts
      G00741257Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove O-ring from differential oil port.
      Fig 17: Removing O-Ring From Differential Oil Port
      G00741258Courtesy of NISSAN MOTOR CO., U.S.A.
  22. Remove final drive assembly from transaxle case.
    Fig 18: Removing Final Drive Assembly From Transaxle Case
    G00741259Courtesy of NISSAN MOTOR CO., U.S.A.
  23. Remove differential side bearing outer race and side bearing adjusting shim from transaxle case.
    Fig 19: Removing Differential Side Bearing Outer Race And Side Bearing Adjusting Shim
    G00741260Courtesy of NISSAN MOTOR CO., U.S.A.
  24. Remove differential side bearing adjusting shim from transaxle case.
    Fig 20: Removing Differential Side Bearing Adjusting Shim From Transaxle Case
    G00741261Courtesy of NISSAN MOTOR CO., U.S.A.
  25. Remove differential side bearing outer race from converter housing.
    Fig 21: Removing Differential Side Bearing Outer Race From Converter Housing
    G00741262Courtesy of NISSAN MOTOR CO., U.S.A.
  26. Remove oil seal with screwdriver from converter housing.
    • Be careful not to damage case  .
    Fig 22: Removing Oil Seal From Converter Housing
    G00741263Courtesy of NISSAN MOTOR CO., U.S.A.
  27. Remove differential lubricant tube from converter housing.
    Fig 23: Removing Differential Lubricant Tube From Converter Housing
    G00741264Courtesy of NISSAN MOTOR CO., U.S.A.
  28. Remove oil pump according to the following procedures.
    1. Remove O-ring from input shaft.
      Fig 24: Removing O-Ring From Input Shaft
      G00741265Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove oil pump assembly and gasket from transaxle case.
      Fig 25: Removing Oil Pump Assembly And Gasket From Transaxle Case
      G00741266Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove thrust washer and bearing race from oil pump assembly.
      Fig 26: Removing Thrust Washer And Bearing Race From Oil Pump Assembly
      G00741267Courtesy of NISSAN MOTOR CO., U.S.A.
  29. Remove brake band according to the following procedures.
    1. Loosen lock nut, then back off anchor end pin.
      Fig 27: Removing Anchor End Pin
      G00741268Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove brake band and strut from transaxle case.
      Fig 28: Removing Brake Band And Strut From Transaxle Case
      G00741269Courtesy of NISSAN MOTOR CO., U.S.A.
      • To prevent brake linings from cracking or peeling, do not stretch the flexible band unnecessarily. When removing the brake band, always secure it with a clip as shown in the figure at left  .

        Leave the clip in position after removing the brake band  .

      Fig 29: Securing Brake Band With Clip
      G00741270Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Check brake band facing for damage, cracks, wear or burns.
      Fig 30: Checking Brake Band Facing For Damage, Cracks, Wear Or Burns
      G00741271Courtesy of NISSAN MOTOR CO., U.S.A.
  30. Remove input shaft assembly (high clutch assembly) and reverse clutch according to the following procedures.
    1. Remove input shaft assembly (high clutch assembly) with reverse clutch.
      Fig 31: Removing Input Shaft Assembly
      G00741272Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove input shaft assembly (high clutch assembly) from reverse clutch.
      Fig 32: Removing Input Shaft Assembly (High Clutch Assembly) From Reverse Clutch
      G00741273Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove needle bearings from high clutch drum and check for damage or wear.
      Fig 33: Removing Needle Bearings From High Clutch Drum
      G00741274Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Remove high clutch hub and front sun gear from transaxle case.
      Fig 34: Removing High Clutch Hub And Front Sun Gear From Transaxle Case
      G00741275Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Remove front sun gear and needle bearing from high clutch hub and check for damage or wear.
    6. Remove bearing race from front sun gear and check for damage or wear.
    Fig 35: Removing Front Sun Gear And Needle Bearing From High Clutch Hub
    G00741276Courtesy of NISSAN MOTOR CO., U.S.A.
  31. Remove needle bearing from transaxle case and check for damage or wear.
    Fig 36: Removing Needle Bearing From Transaxle Case
    G00741277Courtesy of NISSAN MOTOR CO., U.S.A.
  32. Apply compressed air and check to see that low & reverse brake operates.
    Fig 37: Checking Reverse Brake Operation
    G00741278Courtesy of NISSAN MOTOR CO., U.S.A.
  33. Remove low one-way clutch and front planetary carrier assembly according to the following procedures.
    1. Remove snap ring with flat-bladed screwdriver.
      • Do not expand snap ring excessively.
      Fig 38: Removing Snap Ring
      G00741279Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove low one-way clutch with a hook made of wire.
      Fig 39: Removing Low One-Way Clutch With Hook Made Of Wire
      G00741280Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove snap ring with flat-bladed screwdriver.
      • Do not expand snap ring excessively  .
      Fig 40: Removing Snap Ring
      G00741281Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Remove front planetary carrier with low & reverse brake piston and retainer.
      Fig 41: Removing Front Planetary Carrier With Low & Reverse Brake Piston And Retainer
      G00741282Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Remove low & reverse brake spring retainer.
      • Do not remove return springs from spring retainer  .
      Fig 42: Removing Low & Reverse Brake Spring Retainer
      G00741283Courtesy of NISSAN MOTOR CO., U.S.A.
    6. Check that low one-way clutch rotates in the direction of the clockwise arrow and locks in the opposite direction.
      Fig 43: Checking Low One-Way Clutch Rotation
      G00741284Courtesy of NISSAN MOTOR CO., U.S.A.
    7. Remove needle bearing, low & reverse brake piston and retainer from front planetary carrier.
    8. Check front planetary carrier, low one-way clutch and needle bearing for damage or wear.
      Fig 44: Removing Needle Bearing, Low & Reverse Brake Piston And Retainer From Front Planetary Carrier
      G00741285Courtesy of NISSAN MOTOR CO., U.S.A.
    9. Check clearance between planetary gears and planetary carrier with feeler gauge.

      Standard clearance: 0.20 - 0.70 mm (0.0079 - 0.0276 in) 

      Allowable limit: 0.80 mm (0.0315 in) 

      Replace front planetary carrier if the clearance exceeds allowable limit.

    Fig 45: Checking Clearance Between Planetary Gears And Planetary Carrier
    G00741286Courtesy of NISSAN MOTOR CO., U.S.A.
  34. Remove rear planetary carrier assembly and rear sun gear according to the following procedures.
    1. Remove rear planetary carrier assembly from transaxle case.
      Fig 46: Removing Rear Planetary Carrier Assembly From Transaxle Case
      G00741287Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove rear sun gear from rear planetary carrier.
      Fig 47: Removing Rear Sun Gear From Rear Planetary Carrier
      G00741288Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove needle bearings from rear planetary carrier assembly.
    4. Check rear planetary carrier, rear sun gear and needle bearings for damage or wear.
      Fig 48: Removing Needle Bearings From Rear Planetary Carrier Assembly
      G00741289Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Check clearance between pinion washer and rear planetary carrier with feeler gauge.

      Standard clearance: 0.20 - 0.70 mm (0.0079 - 0.0276 in) 

      Allowable limit: 0.80 mm (0.0315 in) 

      Replace rear planetary carrier if the clearance exceeds allowable limit.

    Fig 49: Checking Clearance Between Pinion Washer And Rear Planetary Carrier
    G00741290Courtesy of NISSAN MOTOR CO., U.S.A.
  35. Remove rear internal gear and forward clutch hub from transaxle case.
    Fig 50: Removing Rear Internal Gear And Forward Clutch Hub From Transaxle Case
    G00741291Courtesy of NISSAN MOTOR CO., U.S.A.
  36. Remove overrun clutch hub from transaxle case.
    Fig 51: Removing Overrun Clutch Hub From Transaxle Case
    G00741292Courtesy of NISSAN MOTOR CO., U.S.A.
  37. Remove needle bearing from overrun clutch hub and check for damage or wear.
    Fig 52: Removing Needle Bearing From Overrun Clutch Hub
    G00741293Courtesy of NISSAN MOTOR CO., U.S.A.
  38. Remove forward clutch assembly from transaxle case.
    Fig 53: Removing Forward Clutch Assembly From Transaxle Case
    G00741294Courtesy of NISSAN MOTOR CO., U.S.A.
  39. Remove needle bearing from transaxle case.
    Fig 54: Removing Needle Bearing From Transaxle Case
    G00741295Courtesy of NISSAN MOTOR CO., U.S.A.
  40. Remove output shaft assembly according to the following procedures.
    1. Remove side cover bolts.
      • Do not mix bolts A and B  .
      • Always replace bolts A as they are self-sealing bolts  .
      Fig 55: Removing Side Cover Bolts
      G00741296Courtesy of NISSAN MOTOR CO., U.S.A.
    2. Remove side cover by lightly tapping it with a soft hammer.
      • Be careful not to drop output shaft assembly. It might come out when removing side cover  .
      Fig 56: Removing Side Cover
      G00741297Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove adjusting shim.
      Fig 57: Removing Adjusting Shim
      G00741298Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Remove output shaft assembly.
      Fig 58: Removing Output Shaft Assembly
      G00741299Courtesy of NISSAN MOTOR CO., U.S.A.
      • If output shaft assembly came off with side cover, tap cover with a soft hammer to separate.
        Fig 59: Separating Output Shaft From Side Cover
        G00741300Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Remove needle bearing.
      Fig 60: Removing Needle Bearing
      G00741301Courtesy of NISSAN MOTOR CO., U.S.A.
  41. Disassemble reduction pinion gear according to the following procedures.
    1. Set manual shaft to position P to fix idler gear.
    2. Unlock idler gear lock nut using a pin punch.
      Fig 61: Unlocking Idler Gear Lock
      G00741302Courtesy of NISSAN MOTOR CO., U.S.A.
    3. Remove idler gear lock nut.
      • Do not reuse idler gear lock nut  .
      Fig 62: Removing Idler Gear Lock Nut
      G00741303Courtesy of NISSAN MOTOR CO., U.S.A.
    4. Remove idler gear with puller.
      Fig 63: Removing Idler Gear
      G00741304Courtesy of NISSAN MOTOR CO., U.S.A.
    5. Remove reduction pinion gear.
    6. Remove adjusting shim from reduction pinion gear.
    Fig 64: Removing Adjusting Shim From Reduction Pinion Gear
    G00741305Courtesy of NISSAN MOTOR CO., U.S.A.
  42. Remove return spring from parking shaft with screwdriver.
  43. Draw out parking shaft and remove parking pawl from transaxle case.
  44. Check parking pawl and shaft for damage or wear.
    Fig 65: Removing Return Spring From Parking Shaft
    G00741306Courtesy of NISSAN MOTOR CO., U.S.A.
  45. Remove parking actuator support from transaxle case.
  46. Check parking actuator support for damage or wear.
    Fig 66: Removing Parking Actuator Support From Transaxle Case
    G00741307Courtesy of NISSAN MOTOR CO., U.S.A.
  47. Remove side oil seal with screwdriver from transaxle case.
    CAUTION: Be careful not to scratch transaxle case.
Fig 67: Removing Side Oil Seal From Transaxle Case
G00741308Courtesy of NISSAN MOTOR CO., U.S.A.
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