Disassembly

POWER STEERING: VANE PUMP: DISASSEMBLY

DISASSEMBLY
NOTE:
When using a vise, do not overtighten it.





1. MEASURE VANE PUMP ROTATING TORQUE
(a) Check that the pump rotates smoothly without abnormal noise.
(b) Using a torque wrench, check the pump rotation torque.
Rotation torque - Torque: 0.25 Nm (2.5 kgf-cm, 2.2 in-lbf) or less





2. REMOVE VANE PUMP PULLEY
(a) Using SST to stop the pulley from rotating, remove the pulley set nut.
SST: 09960-10010
09962-01000
09963-01000
3. REMOVE AIR CONTROL VALVE ASSEMBLY





(a) Remove the air control valve.
(b) If necessary, replace the union seat.
(1) Using a screw extractor, remove the union seat.




(2) Using an extension bar and hammer, tap in a new union seat.
NOTE:
Before installing the union seat, remove foreign matter sticking to the vane pump housing.

4. REMOVE POWER STEERING SUCTION PORT UNION
(a) Remove the 2 bolts and power steering suction port union.
(b) Using a small screwdriver, remove the O-ring from the power steering suction port union.
NOTE:
Be careful not to damage the suction port union.

5. REMOVE POWER STEERING SOLENOID VALVE ASSEMBLY





(a) Using SST, remove the power steering solenoid valve.
SST: 09922-10010
NOTE:
Rotate SST in the direction shown in the illustration.

(b) Using snap ring pliers, remove the snap ring from the vane pump housing front.





(c) Temporarily install a bolt to the flow control spring seat and pull it out together with the flow control spring seat.
HINT: Use a bolt with a diameter of 6 mm (0.24 in.) and pitch of 1.0 mm (0.039 in.).

(d) Remove the O-ring from the flow control spring seat.





6. REMOVE VANE PUMP SHAFT
(a) Using snap ring pliers, remove the snap ring from the vane pump housing.
(b) Temporarily install an appropriate plate washer and the pulley set nut to the vane pump shaft.
(c) Using SST, pull out the vane pump shaft.
SST: 09910-00015
09911-00011
09912-00010
(d) Using snap ring pliers, remove the snap ring from the vane pump shaft.
7. REMOVE VANE PUMP REAR BRACKET
(a) Remove the 4 bolts and vane pump bracket.
(b) Remove the O-ring from the vane pump bracket.





(c) Remove the wave washer.
(d) Using an extension bar and press, press out the vane pump side plate front, vane pump cam ring, vane pump rotor, vane pump plates and vane pump side plate rear as an assembly.
(e) Using pliers, remove the long cam ring straight pin from the vane pump housing front.
(f) Remove the O-ring from the vane pump side plate rear.
NOTE:
Take care not to drop the vane plate.

(g) Remove the vane pump rotor and the 10 vane pump plates from the vane pump cam ring.
(h) Remove the 10 vane pump plates from the vane pump rotor.
(i) Remove the short cam ring straight pin from the vane pump side plate front.
(j) Remove the 2 O-rings from the vane pump side plate front.





8. REMOVE VANE PUMP HOUSING OIL SEAL
(a) Using SST, tap out the oil seal.
SST: 09631-10030
NOTE:
Be careful not to damage the vane pump housing front.