Disassembly

AA80E AUTOMATIC TRANSMISSION: OIL PUMP: DISASSEMBLY

1. REMOVE OIL PUMP O-RING





(a) Remove the O-ring from the oil pump.

2. FIX OIL PUMP ASSEMBLY





(a) Place the oil pump body on the torque converter clutch.

3. REMOVE CLUTCH DRUM OIL SEAL RING





(a) Remove the 4 oil seal rings.

4. REMOVE NO. 1 BRAKE PISTON





(a) Using a T30 ''TORX'' wrench, remove the 5 bolts, brake piston return spring sub-assembly and No. 1 brake piston.

(b) Remove the 2 O-rings from the No. 1 brake piston.

5. REMOVE STATOR SHAFT CLUTCH DRUM THRUST WASHER





6. INSPECT NO. 1 BRAKE PISTON RETURN SPRING SUB-ASSEMBLY Oil Pump

7. REMOVE STATOR SHAFT ASSEMBLY





(a) Remove the 2 bolts and stator shaft from the oil pump body.

8. REMOVE FRONT OIL PUMP BODY O-RING

(a) Remove the oil pump body from the torque converter clutch.

(b) Remove the O-ring from the oil pump body.





9. INSPECT STATOR SHAFT ASSEMBLY Oil Pump

10. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY Oil Pump

11. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY Oil Pump

12. REMOVE FRONT OIL PUMP DRIVE GEAR





(a) Remove the drive gear.

13. REMOVE FRONT OIL PUMP DRIVEN GEAR





(a) Remove the driven gear.

14. REMOVE FRONT OIL PUMP OIL SEAL





(a) Using a screwdriver, pry out the oil seal.

NOTICE:
Do not damage the bushing and oil pump body.