Oil Pump
OIL PUMPCOMPONENTS:
DISASSEMBLY
1. REMOVE FRONT OIL PUMP BODY 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 3 oil seal rings.
4. REMOVE STATOR SHAFT ASSEMBLY
(a) Remove the 14 bolts and 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
(a) Remove the drive gear.
10. REMOVE FRONT OIL PUMP DRIVEN GEAR
(a) Remove the driven gear.
11. 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.
INSPECTION
1. INSPECT FRONT OIL PUMP BODY SUB-ASSEMBLY
(a) Using a caliper gauge, measure the inside diameter of the oil pump body bush.
Maximum inside diameter: 38.138 mm (1.5015 in.)
If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.
2. INSPECT STATOR SHAFT ASSEMBLY
(a) Using a caliper gauge, measure the inside diameter of the stator shaft bush.
Maximum inside diameter:
Front side: 21.527 mm (0.8475 in.)
Rear side: 32.03 mm (1.261 in.)
If the inside diameter is greater than the maximum, replace the stator shaft assembly.
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 between the driven gear and pump body.
Standard body clearance: 0.10 to 0.17 mm (0.0039 to 0.0067 in.)
If the body clearance is not as specified, replace the drive gear, driven gear and 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 in.)
If the tip clearance is not as specified, replace the drive gear, driven gear and pump body.
(d) Using a steel straightedge and feeler gauge, measure the clearance between both gears and straightedge.
Standard side clearance: 0.03 to 0.05 mm (0.0012 to 0.002 in.)
If the side clearance is not as specified, replace the drive gear, driven gear and pump body.
HINT: There are 7 different thicknesses for the drive and driven gears.
Standard drive and driven gears thickness:
4. INSPECT OIL PUMP DRIVE GEAR ROTATION
(a) Place the oil pump assembly on the torque converter clutch.
(b) Make sure that the drive gear rotates smoothly.
REASSEMBLY
1. INSTALL FRONT OIL PUMP OIL SEAL
(a) Using SST and a hammer, tap in 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 lip of the oil seal 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: 12 N*m (122 kgf*cm, 9 ft.*lbf)
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 so that the gap becomes 8 mm (0.315 in.) or less, and then install them to the stator 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.