REMOVE OIL PUMP O-RING
Remove the O-ring from the oil pump.
SECURE OIL PUMP ASSEMBLY
Place the oil pump body on the torque converter clutch.
REMOVE CLUTCH DRUM OIL SEAL RING
Remove the 4 oil seal rings.
REMOVE STATOR SHAFT PISTON
Using a T30 ''TORX'' wrench, remove the 5 bolts, stator shaft spring sub-assembly and stator shaft piston.
Remove the 2 O-rings from the stator shaft piston.
REMOVE STATOR SHAFT CLUTCH DRUM THRUST WASHER
Remove the stator shaft clutch drum thrust washer.
INSPECT STATOR SHAFT SPRING SUB-ASSEMBLY
Using a vernier caliper and straightedge, measure the distance between the spring end and the straightedge.
| Standard thickness |
|---|
| 6.52 mm (0.257 in.) |
REMOVE STATOR SHAFT ASSEMBLY
Remove the 2 bolts and stator shaft from the oil pump body.
REMOVE FRONT OIL PUMP BODY O-RING
Remove the oil pump body from the torque converter clutch.
Remove the O-ring from the oil pump body.
INSPECT STATOR SHAFT ASSEMBLY
Using a caliper gauge, measure the inside diameter of the stator shaft bush.
| Maximum inside diameter |
|---|
| Front side |
| 25.925 mm (1.02 in.) |
| Rear side |
| 35.251 mm (1.39 in.) |
If the inside diameter is greater than the maximum, replace the stator shaft assembly.
INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
Using a caliper gauge, measure the inside diameter of the oil pump body bush.
| Maximum inside diameter |
|---|
| 45.078 mm (1.77 in.) |
If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.
INSPECT CLEARANCE OF OIL PUMP ASSEMBLY
Push the driven gear to one side of the pump body.
Using a feeler gauge, measure the clearance between the driven gear and pump body.
| Standard body clearance |
|---|
| 0.10 to 0.17 mm (0.00394 to 0.00669 in.) |
If the clearance is not as specified, replace the drive gear, driven gear and pump body.
Using a feeler gauge, measure the clearance between the driven gear teeth and drive gear teeth.
| Standard tip clearance |
|---|
| 0.07 to 0.15 mm (0.00276 to 0.00591 in.) |
If the tip clearance is not as specified, replace the drive gear, driven gear and pump body.
Using a steel straightedge and feeler gauge, measure the clearance between both gears and the straightedge.
| Standard side clearance |
|---|
| 0.03 to 0.05 mm (0.00118 to 0.00197 in.) |
If the side clearance is not as specified, replace the drive gear, driven gear and pump body.
Tech Tips
There are 7 different thicknesses for the drive and driven gears.
| Standard Drive and Driven Gear Thickness | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
REMOVE FRONT OIL PUMP DRIVE GEAR
Remove the drive gear from the oil pump body.
REMOVE FRONT OIL PUMP DRIVEN GEAR
Remove the driven gear from the oil pump body.
REMOVE FRONT OIL PUMP OIL SEAL
Using a screwdriver, pry out the oil seal.
Note
Do not damage the bushing or oil pump body.