Oil Pump

DISASSEMBLY





1. CHECK PUMP DRIVE GEAR ROTATION
Turn the drive gear with 2 screwdrivers and make sure it rotates smoothly.

NOTICE: Be careful not to damage the oil seal lip.





2. REMOVE 2 OIL SEAL RINGS





3. REMOVE STATOR SHAFT
Using a torx socket T30, remove the 11 bolts and stator shaft. Keep the gears in assembling order.





4. REMOVE OIL PUMP DRIVE GEAR AND DRIVEN GEAR





5. REMOVE OIL SEAL
a. Mount oil pump in a soft jaw vise.
b. Using Special Service Tool (SST), remove oil seal from the oil pump body.
SST 09308-00010

INSPECTION





1. CHECK BODY CLEARANCE OF DRIVEN GEAR
Push the driven gear to one side of the body. Using a feeler gauge, measure the clearance.
Standard body clearance: 0.075 - 0.150 mm (0.0030 - 0.0059 inch)
Maximum body clearance: 0.30 mm (0.0118 inch)
If the body clearance is greater than the maximum, replace the oil pump body sub-assembly.





2. CHECK TIP CLEARANCE OF DRIVEN GEAR
Measure the tip clearance between the driven gear teeth and crescent-shaped part of the pump body.
Standard tip clearance: 0.11 - 0.14 mm (0.0043 - 0.0055 inch)
Maximum tip clearance: 0.30 mm (0.0118 inch)
If the tip clearance is greater than the maximum, replace the oil pump body sub assembly.





3. CHECK SIDE CLEARANCE OF BOTH GEAR
Using a steel straight edge and feeler gauge, measure the side clearance of both gears.
Standard side clearance: 0.02 - 0.04 mm (0.0008 - 0.0016 inch)
Maximum side clearance: 0.10 mm (0.0039 inch)





4. CHECK OIL PUMP BODY BUSHING
Using a dial indicator, measure the inside diameter of the oil pump body bushing.
Standard inside diameter: 38.12 - 38.13 mm (1.5008 - 1.5012 inch)
Maximum inside diameter: 38.18 mm (1.5031 inch)
If the inside diameter is greater than the maximum, replace the oil pump body sub-assembly.





5. CHECK STATOR SHAFT BUSHING
Using a dial indicator, measure the inside diameter of the stator shaft bushings.
Standard inside diameter: 21.50 - 21.52 mm (0.8465 - 0.8472 inch)
Maximum inside diameter: 21.57 (0.8492 inch)
If the inside diameter is greater than the maximum, replace the stator shaft.

REASSEMBLY





1. INSTALL OIL SEAL
a. Using Special Service Tool (SST), install a new oil seal from oil pump.
SST 09350-32014 (09351-32140)

HINT: The seal end should be flat with the outer edge of the oil pump.

b. Coat the lip of oil seal with petroleum jelly.





2. INSTALL OIL PUMP DRIVE GEAR AND DRIVEN GEAR





3. INSTALL STATOR SHAFT
a. Align the stator shaft with each bolt hole.
b. Using a torx socket T30, install the 11 bolts.
Torque: 9.8 Nm (100 kgf-cm, 7 ft. lbs.)





4. INSTALL 2 OIL SEAL RINGS

NOTICE: Do not expand the ring ends excessively.





5. CHECK PUMP DRIVE GEAR ROTATION
Turn the drive gear with 2 screwdrivers and make sure it rotates smoothly.

NOTICE: Be careful not to damage the oil seal lip.