RAV4 2WD L4-2.4L (2AZ-FE) (2004)
1. MEASURE PS VANE PUMP ROTATING TORQUE
a. Check that the pump rotates smoothly without abnormal noise.
b. Using a torque wrench, check the pump rotating torque.
Rotating torque: 0.27 Nm (2.8 kgf-cm, 2.4 inch lbs.) or less
2. REMOVE SUCTION PORT UNION
a. Remove the bolt and suction port union.
b. Remove the O-ring from the suction port union.
3. REMOVE PRESSURE PORT UNION, FLOW CONTROL VALVE AND SPRING
a. Remove the pressure port union, flow control valve and spring.
b. Remove the O-ring from the pressure port union.
4. REMOVE OIL PRESSURE SWITCH
NOTICE: Be careful not to drop the oil pressure switch.
If the oil pressure switch is dropped or strongly damaged, replace it with a new one.
5. REMOVE REAR HOUSING
a. Remove the 4 bolts and rear housing.
b. Remove the O-ring from the rear housing.
6. REMOVE CAM RING, 10 VANE PLATES, VANE PUMP ROTOR AND SIDE PLATE
a. Remove the cam ring and 10 vane plates.
NOTICE: Take care not to drop the vane plate.
b. Using a screwdriver, remove the snap ring, vane pump rotor and side plate.
c. Remove the 2 O-rings from the side plate.
7. REMOVE VANE PUMP SHAFT WITH VANE PUMP PULLEY
INSPECTION
1. MEASURE OIL CLEARANCE BETWEEN VANE PUMP SHAFT AND BUSHING
Using a micrometer and a caliper gauge, measure the oil clearance.
Standard clearance: 0.021 - 0.043 mm (0.0008 - 0.0017 inch)
Maximum clearance: 0.07 mm (0.0028 inch)
If it is more than the maximum, replace the front housing and vane pump shaft.
2. INSPECT VANE PUMP ROTOR AND VANE PLATES