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 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. REMOVE FRONT OIL PUMP DRIVE GEAR
a. Remove the front oil pump drive gear.
7. REMOVE FRONT OIL PUMP DRIVEN GEAR
a. Remove the front oil pump driven gear.
8. REMOVE FRONT OIL PUMP OIL SEAL
a. Using a screwdriver, remove the oil seal.
NOTICE: Be careful not to damage the bushing and the oil pump body.
INSPECTION
1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
a. Using a dial indicator, measure the inside diameter of the oil pump body bushing.
Standard inside diameter: 38.138 mm (1.5015 inch)
If the inside diameter is greater than the standard inside diameter, replace the oil pump body.
2. INSPECT STATOR SHAFT ASSEMBLY
a. Using a dial indicator, measure the inside diameter of the stator shaft bushing.
Standard inside diameter: 21.527 mm (0.8475 inch)
If the inside diameter is greater than the standard inside diameter, 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)
If the body clearance is greater than the standard clearance, check the drive gear, the driven gear and the pump body.
c. Using a feeler gauge, measure the clearance between the driven gear teeth and the drive gear teeth.
Standard tip clearance: 0.070 to 0.150 mm (0.0028 to 0.0059 inch)
If the tip clearance is greater than the standard clearance, check the drive gear, the driven gear and the pump body.
d. Using a steel straight edge and a feeler gauge, measure the side clearance of both gears.
Standard side clearance: 0.02 to 0.04 mm (0.00079 to 0.00157 inch)
e. There are 7 different thicknesses for the drive and driven gears.
Drive and Driven Gears Thickness:
If the side clearance is greater than the standard thickness, check the drive gear, the driven gear and the pump body.
4. INSPECT OIL PUMP DRIVE GEAR ROTATION
a. Make sure that 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.
HINT: The oil seal end should be flush with the outer edge of the pump body
SST 09350-30020 (09351-32140)
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. Align the stator shaft with each bolt hole.
b. Install the 14 bolts.
Torque: 11 Nm (110 kgf-cm, 8 ft. lbs.)
7. INSTALL CLUTCH DRUM OIL SEAL RING
a. Coat 3 new oil seal rings with ATF.
b. Squeeze the ends of the 3 oil seal rings together with the wrap distance 8 mm or less, and then install them to the starter shaft groove.
NOTICE: Do not expand the ring ends excessively.
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.