Automatic Transaxle Overhaul: Disassembly

Drain ATF through drain plug.

Fig 1: Draining ATF Through Drain Plug
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove torque converter.

Fig 2: Removing Torque Converter
Courtesy of NISSAN MOTOR CO., U.S.A.
Check torque converter one-way clutch using check tool as shown at left.

Fig 3: Checking Torque Converter One-Way Clutch Using Check Tool
Courtesy of NISSAN MOTOR CO., U.S.A.
1. Insert check tool into the groove of bearing support built into one-way clutch outer race.
2. While fixing bearing support with check tool, rotate one-way clutch spline using flat-bladed screwdriver.
3. Check inner race rotates clockwise only. If not, replace torque converter assembly.
Remove oil charging pipe and oil cooler tube.

Fig 4: Removing Oil Charging Pipe And Oil Cooler Tube
Courtesy of NISSAN MOTOR CO., U.S.A.
Set manual shaft to "P" position.
Remove PNP switch.

Fig 5: Removing PNP Switch
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove oil pan and oil pan gasket.
- Do not reuse oil pan bolts.
Check foreign materials in oil pan to help determine cause 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 may inhibit pump pressure.
- If frictional material is detected, replace radiator after repair of A/T. Refer to RADIATOR .
Remove control valve assembly according to the following procedures.

Fig 6: Identifying Drain Bolt
Courtesy of NISSAN MOTOR CO., U.S.A.
1. Remove control valve assembly mounting bolts A, B and C.
  
  Fig 7: Removing Control Valve Assembly Mounting Bolts A, B And C
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove stopper ring from terminal body.
3. Push terminal body into transmission case and draw out solenoid harness.
Fig 8: Removing Stopper Ring From Terminal Body
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove manual valve from control valve assembly as a precaution.

Fig 9: Removing Manual Valve From Control Valve Assembly
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove return spring from servo release accumulator piston.

Fig 10: Removing Return Spring From Servo Release Accumulator Piston
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove servo release accumulator piston with compressed air.
Remove O-rings from servo release accumulator piston.

Fig 11: Removing O-Rings From Servo Release Accumulator Piston
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove N-D accumulator piston and return spring with compressed air.
Remove O-rings from N-D accumulator piston.

Fig 12: Removing N-D Accumulator Piston And Return Spring With Compressed Air
Courtesy of NISSAN MOTOR CO., U.S.A.
Check accumulator pistons and contact surface of transmission case for damage.
Check accumulator return springs for damage and free length.
1. Return springs:
  1. Refer to SDS, TOTAL END PLAY .
Fig 13: Checking Accumulator Pistons And Contact Surface Of Transmission Case For Damage
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove lip seals from band servo oil port.

Fig 14: Removing Lip Seals From Band Servo Oil Port
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove converter housing according to the following procedures.
1. Remove converter housing mounting bolts A and B.
  
  Fig 15: Removing Converter Housing Mounting Bolts A And B
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove converter housing.
  
  Fig 16: Removing Converter Housing
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove O-ring from differential oil port.
Fig 17: Removing O-Ring From Differential Oil Port
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove final drive assembly from transmission case.

Fig 18: Removing Final Drive Assembly From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove differential side bearing outer race from transmission case.

Fig 19: Removing Differential Side Bearing Outer Race From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove differential side bearing adjusting shim from transmission case.

Fig 20: Removing Differential Side Bearing Adjusting Shim From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove differential side bearing outer race from converter housing.

Fig 21: Removing Differential Side Bearing Outer Race From Converter Housing
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove oil seal from converter housing using a screwdriver.
- Be careful not to damage case.
Fig 22: Removing Oil Seal From Converter Housing Using Screwdriver
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove side oil seal from transmission case using a screwdriver.

Fig 23: Removing Side Oil Seal From Transmission Case Using Screwdriver
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove oil tube from converter housing.

Fig 24: Removing Oil Tube From Converter Housing
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove oil pump according to the following procedures.
1. Remove O-ring from input shaft.
  
  Fig 25: Removing O-Ring From Input Shaft
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove oil pump assembly from transmission case.
  
  Fig 26: Removing Oil Pump Assembly From Transmission Case
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove thrust washer and bearing race from oil pump assembly.
Fig 27: Removing Thrust Washer And Bearing Race From Oil Pump Assembly
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove brake band according to the following procedures.
1. Loosen lock nut, then back off anchor end pin.
  - Do not reuse anchor end pin.
  Fig 28: Loosening Lock Nut, Then Back Off Anchor End Pin
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove brake band from transmission case.
  
  Fig 29: Removing Brake Band From Transmission Case
  Courtesy 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 30: Removing Brake Band
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check brake band facing for damage, cracks, wear or burns.
Fig 31: Checking Brake Band Facing For Damage, Cracks, Wear Or Burns
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove input shaft assembly (high clutch) and reverse clutch according to the following procedures.
1. Remove input shaft assembly (high clutch) with reverse clutch.
  
  Fig 32: Removing Input Shaft Assembly (High Clutch) With Reverse Clutch
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove input shaft assembly (high clutch) from reverse clutch.
  
  Fig 33: Removing Input Shaft Assembly (High Clutch) From Reverse Clutch
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove needle bearing from high clutch drum.
4. Check input shaft assembly and needle bearing for damage or wear.
Fig 34: Checking Input Shaft Assembly And Needle Bearing For Damage Or Wear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove high clutch hub and needle bearing from transmission case.
Check high clutch hub and needle bearing for damage or wear.

Fig 35: Checking High Clutch Hub And Needle Bearing For Damage Or Wear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove front sun gear and needle bearings from transmission case.
Check front sun gear and needle bearings for damage or wear.

Fig 36: Removing Front Sun Gear And Needle Bearings From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove front planetary carrier assembly and low one-way clutch according to the following procedures.
1. Remove snap ring using a screwdriver.
  
  Fig 37: Removing Snap Ring Using Screwdriver
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove front planetary carrier with low one-way clutch.
  
  Fig 38: Removing Front Planetary Carrier With Low One-Way Clutch
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Check that low one-way clutch rotates in the direction of the arrow and locks in the opposite direction.
4. Remove low one-way clutch from front planetary carrier by rotating it in the direction of unlock.
  
  Fig 39: Rotating In Direction Of Arrow And Locks In Opposite Direction
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. Remove needle bearing from front planetary carrier.
  
  Fig 40: Removing Needle Bearing From Front Planetary Carrier
  Courtesy of NISSAN MOTOR CO., U.S.A.
6. Check front planetary carrier, low one-way clutch and needle bearing for damage or wear.
7. Check clearance between pinion washer and planetary carrier using feeler gauge.
  
  Fig 41: Checking Clearance Between Pinion Washer And Planetary Carrier Using Feeler Gauge
  Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Standard clearance:
    1. 0.15 - 0.70 mm (0.0059 - 0.0276 in)
  2. Allowable limit:
    1. 0.80 mm (0.0315 in)
  Replace front planetary carrier if the clearance exceeds allowable limit.
Remove rear planetary carrier assembly and rear sun gear according to the following procedures.
1. Remove rear planetary carrier assembly from transmission case.
  
  Fig 42: Removing Rear Planetary Carrier Assembly From Transmission Case
  Courtesy of NISSAN MOTOR CO., U.S.A.
2. Remove rear sun gear from rear planetary carrier.
  
  Fig 43: Removing Rear Sun Gear From Rear Planetary Carrier
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove needle bearings from rear planetary carrier assembly.
  
  Fig 44: Removing Needle Bearings From Rear Planetary Carrier Assembly
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Check rear planetary carrier, rear sun gear and needle bearings for damage or wear.
5. Check clearance between pinion washer and rear planetary carrier using feeler gauge.
  
  Fig 45: Checking Clearance Between Pinion Washer And Rear Planetary Carrier Using Feeler Gauge
  Courtesy of NISSAN MOTOR CO., U.S.A.
  1. Standard clearance:
    1. 0.15 - 0.70 mm (0.0059 - 0.0276 in)
  2. Allowable limit:
    1. 0.80 mm (0.0315 in)
  Replace rear planetary carrier if the clearance exceeds allowable limit.
Remove rear internal gear from transmission case.

Fig 46: Removing Rear Internal Gear From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove needle bearing from rear internal gear.
- Check needle bearing for damage or wear.
Fig 47: Removing Needle Bearing From Rear Internal Gear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove forward clutch assembly from transmission case.

Fig 48: Removing Forward Clutch Assembly From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove thrust washer from transmission case.

Fig 49: Removing Thrust Washer From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove output shaft assembly according to the following procedures.
1. Remove side cover bolts.
  
  Fig 50: Removing Side Cover Bolts
  Courtesy 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 51: Removing Side Cover By Lightly Tapping With Soft Hammer
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove adjusting shim.
  
  Fig 52: Removing Adjusting Shim
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Remove output shaft assembly.
  
  Fig 53: Removing Output Shaft Assembly
  Courtesy 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 54: Taping Cover With Soft Hammer To Separate
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. Remove needle bearing.
Fig 55: Removing Needle Bearing
Courtesy of NISSAN MOTOR CO., U.S.A.
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 56: Unlocking Idler Gear Lock Nut Using Pin Punch
  Courtesy of NISSAN MOTOR CO., U.S.A.
3. Remove idler gear lock nut.
  - Do not reuse idler gear lock nut.
  Fig 57: Removing Idler Gear Lock Nut
  Courtesy of NISSAN MOTOR CO., U.S.A.
4. Remove idler gear with puller.
  
  Fig 58: Removing Idler Gear With Puller
  Courtesy of NISSAN MOTOR CO., U.S.A.
5. Remove reduction pinion gear.
6. Remove adjusting shim from reduction pinion gear.
Fig 59: Removing Adjusting Shim From Reduction Pinion Gear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove return spring from parking shaft using a screwdriver.

Fig 60: Removing Return Spring From Parking Shaft Using A Screwdriver
Courtesy of NISSAN MOTOR CO., U.S.A.
Draw out parking shaft and remove parking pole from transmission case.
Check parking pole and shaft for damage or wear.

Fig 61: Checking Parking Pole And Shaft For Damage Or Wear
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove parking actuator support from transmission case.
- Check parking actuator support for damage or wear.
Fig 62: Removing Parking Actuator Support From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.
Remove revolution sensor from transmission case.

Fig 63: Removing Revolution Sensor From Transmission Case
Courtesy of NISSAN MOTOR CO., U.S.A.