Power Steering Pump: Service and Repair

CAUTION
Be sure to cover the Generator with a protector when servicing the oil pump.


REMOVAL



1. Remove the pressure hose from the oil pump.


NOTE
When assembJing, use a new 0-ring.




2. Disconnect the suction hose from the suction connector and drain the tluid into a container.


CAUTION
When removing the suction hose, cover the generator with vinyl not to be damaged by the fluid.




3. Remove the V-belt. (V-6 ENG.)
4. Loosen the tensioner adjusting bolt to remove the V-belt (DOHC ENG).




5. Remove the oil pump mounting bolts and disconnect the pressure switch connector.




DISASSEMBLY




1. Remove the suction pipe and the 0-ring from the oil pump.
2. Remove the rear cover with the gasket.
3. Remove the cam ring.
4. Remove the rotor and vanes.




5. Remove the front side plate.
6. Remove the inner and outer 0-ring.




7. Remove the spring.
8. Remove the pulley nut and the spring washer.




9. Pull ofl the pulley and the woodrufl key.
10. Remove the snap ring using snap ring pliers.




11. Drive out the pulley shaft and bearing. If necessary, use a plastic hammer.




12. Remove the oil seal from the oil pump body.
13. Remove the connector from the oil pump body, an~ then remove the flow control valve and flow control spring.
14. Remove the 0-ring from the connector.


CAUTION
Do not disassemble the flow control valve.


15. Remove the oil pump switch.
16. Take out the spring and the spool.




17. Remove the 0-ring from the oil pump switch.

INSPECTION

1. Clean all disassembled parts with a suitable cleaning solvent.
2. If any inside parts of the oil pump have been damaged, replace the pump as an assembly.
3. If the pulley is cracked or deformed, replace it.
4. If oil leaks around the pulley shaft oil seal, replace the oil seal.
5. If the serrations of the pulley or pulley shaft are deformed or worn, replace them.


REASSEMBLY

1. Install the oil pump switch.
2. Install the flow control valve spring, valve and connector in the pump body.

NOTE
Apply a thin coat ot Power steering fluid type to all parts including the oil seal and 0-ring.




3. Using special tool (09222-32100), install the oil seal into the pump body.
4. Gently insert the shaft assembly and install the snap ring.




5. Install the pump pulley with woodruft key in place.

6. Install the spring and the inner and outer 0-rings.




7. Install the front side plate.




8. Insert the pins into the pin grooves of the front housing, then install the cam ring, paying attention to its direction.
9. Install the rotor with its punch marked side facing towards the front side plate.




10. Install the vane plates with the round end facing outward.
11. Install the gasket and rear cover.
12. Tighten the suction connector.

INSTALLATION

1. Install the oil pump to the oil pump bracket.
2. Install the suction hose.
3. Install the ribbed V-belt and adjust its tension.
4. Connect the pressure hose to the oil pump~ and the suction hose to the oil reservoir.

NOTE
Install the hoses so that they are not twisted and they do not come in contact with any other parts.

5. Replenish the reservoir.


Recommended fluid: Power steering fluid (PSF-3)


6. Bleed the system.
7. Check the oil pump pressure.
8. Install parts by referring to the torque specification.