Visual Inspection Procedure

1. Inspect the power steering pump body and the cover for cracks or leaks.





2. If any of the following conditions are present on the pump body or any internal part, replace the power steering pump.
- Excessive wear
- Cracks
- Leaks





3. Inspect the side plate and the shaft for excessive wear and damage. If any defect is found, replace the pump assembly.





4. Inspect the cam ring for excessive wear and damage. If any defect is found, replace the pump assembly.





5. Inspect the sliding surfaces of the rotor and the vane for wear and damage. If wear or damage is present, replace the rotor and the vanes with the power steering pump seal kit.





6. Use a feeler gauge (1) in order to measure the vane-to-rotor clearance.
Measurement
The allowable vane-to-rotor clearance is 0.015 - 0.027 mm (0.0006 - 0.0011 inch).
7. If the vane to rotor clearance is greater than the specified range, replace the rotor and the vanes with the power steering pump seal kit.





8. Inspect the fluid passage of the relief valve and the orifice of the connector for obstructions.
9. Inspecting the sliding surface of the relief valve for wear and damage.





10. Use the dial calipers in order to measure the free length of the flow control valve spring (1).
Measurement
The free length of the spring should be within 19.0 - 22.0 mm (0.748 - 0.866 inch).
11. If the valve spring does not fall within the specifications, replace the power steering pump.