Oil Pump
OIL PUMPComponents:
DISASSEMBLY
1. REMOVE FRONT OIL PUMP BODY O-RING
a. Remove the O-ring from the oil pump assembly
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 3 oil seal rings.
4. REMOVE STATOR SHAFT ASSEMBLY
a. Remove the 14 bolts, and then remove the stator shaft from the oil pump body
5. REMOVE FRONT OIL PUMP BODY O-RING
a. Remove the O-ring from the oil pump body.
b. Remove the oil pump body from the torque converter clutch.
6. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
7. INSPECT STATOR SHAFT ASSEMBLY
8. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY
9. REMOVE FRONT OIL PUMP DRIVE GEAR
10. REMOVE FRONT OIL PUMP DRIVEN GEAR
11. REMOVE FRONT OIL PUMP OIL SEAL
a. Using a screwdriver, remove the oil seal.
NOTICE: Be careful not to damage the bushing and oil pump body.
INSPECTION
1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
a. Using a caliper gauge, measure the inside diameter of the oil pump body bushing.
Maximum inside diameter: 38.188 mm (1.5035 inch)
If the inside diameter is greater than the maximum, replace the oil pump body
2. INSPECT STATOR SHAFT ASSEMBLY
a. Using a caliper gauge, measure the inside diameter of the stator shaft bushing.
Maximum inside diameter:
Front side: 21.577 mm (0.8495 inch)
Rear side: 32.08 mm (1.2629 inch)
If the inside diameter is grater than the maximum, replace the stator shaft.
3. INSPECT CLEARANCE OF OIL PUMP ASSEMBLY
a. Push the driven gear to one side of the body.
b. Using a feeler gauge, measure the clearance.
Standard body clearance: 0.10 to 0.17 mm (0.0039 to 0.0067 inch)
Maximum body clearance: 0.17 mm (0.0067 inch)
If the body clearance is greater than the maximum, replace the drive gear, driven gear or pump body.
c. Using a feeler gauge, measure the clearance between the driven gear teeth and drive gear teeth.
Standard tip clearance: 0.070 to 0.150 mm (0.0028 to 0.0059 inch)
Maximum tip clearance: 0.150 mm (0.0059 inch)
If the tip clearance is greater than the maximum, replace the drive gear, driven gear or pump body.
d. Using a steel straightedge and feeler gauge, measure the side clearance of both gears.
Standard side clearance: 0.02 to 0.05 mm (0.0008 to 0.002 inch)
Maximum side clearance: 0.05 mm (0.002 inch)
If the side clearance of both is gears greater than the maximum, replace the drive gear, driven gear or pump body.
e. There are 5 different thicknesses for the drive and driven gears.
Standard Drive And Drive Gears Thickness:
If the side clearance is greater than the maximum, replace the drive gear, driven gear or pump body.
4. INSPECT FRONT OIL PUMP DRIVE GEAR ROTATION
a. Make sure the drive gear rotates smoothly.
b. Remove the oil pump assembly from the torque converter.
REASSEMBLY
1. INSTALL FRONT OIL PUMP OIL SEAL
a. Using SST and a hammer, install a new oil seal.
SST 09350-30020 (09351-32140)
HINT: The oil seal end should be flush with the outer edge of the pump body
b. Coat the oil seal lip with MP grease.
2. FIX FRONT OIL PUMP BODY SUB-ASSEMBLY
a. Place the oil pump body on the torque converter clutch.
3. INSTALL FRONT OIL PUMP DRIVEN GEAR
a. Coat the driven gear with ATF.
b. Install the driven gear to the oil pump body.
4. INSTALL FRONT OIL PUMP DRIVE GEAR
a. Coat the drive gear with ATF.
b. Install the drive gear to the oil pump body.
5. INSTALL FRONT OIL PUMP BODY O-RING
a. Install a new O-ring to the oil pump body
6. INSTALL STATOR SHAFT ASSEMBLY
a. Install the stator shaft with each bolt hole.
b. Install the 14 bolts.
Torque: 12 Nm (122 kgf-cm, 9 ft. lbs.)
7. INSTALL CLUTCH DRUM OIL SEAL RING
a. Coat the 3 oil seal rings with ATF.
b. Squeeze the ends of the 3 oil seal rings together with the overlap distance 8 mm (0.314 inch) or less, and then install them to the starter shaft groove.
NOTICE: Do not over-spread the ring ends.
HINT: After installing the oil seal rings, check that they rotate smoothly.
8. INSPECT OIL PUMP DRIVE GEAR ROTATION
9. INSTALL FRONT OIL PUMP BODY O-RING
a. Install a new O-ring to the oil pump assembly.