Exploded View

Fig 1: Exploded View Of Pump With Torque Specifications

Courtesy of AMERICAN HONDA MOTOR CO., INC.

Special Tools Required 

• Pulley Holder 07ZAB-S5A0100
• Driver Handle, 15 x 135L 07749-0010000
• Bearing Driver Attachment, 28 x 30 mm 07946-1870100

Disassembly 

1. Remove the power steering pump (see PUMP REPLACEMENT  ).
2. Drain the remaining fluid from the power steering pump.
3. Hold the power steering pump (A) in a vise with soft jaws (B), then hold the pulley (C) with the pulley holder (D), and remove the pulley nut (E) and pulley. Be careful not to damage the pump housing with the jaws of a vise.
   Fig 2: Holding Power Steering Pump In Vise With Soft Jaws

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
4. Remove the inlet joint and 14.8 mm O-ring.
5. Loosen the flow control valve cap, and remove the cap, 18.7 mm O-ring, flow control valve spring, and flow control valve.
6. Remove the pump cover and pump cover seal.
7. Remove the outer side plate, cam ring, rotor/vanes, side plate, 15.2 mm O-ring, and 51.0 mm O-ring.
8. Remove the snap ring, then remove the subvalve from the pump housing.
9. Remove the 40 mm snap ring, then remove the driveshaft by tapping the shaft end with a soft face hammer.
10. Remove the pump seal from the pump housing.

    Inspection 

11. Check the flow control valve for wear, burrs, and other damage to the edges of the grooves in the valve.
    Fig 3: Identifying Flow Control Valve

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
12. Inspect the bore of the flow control valve on the pump housing for scratches and wear.
13. Slip the flow control valve (A) back in the pump housing, and check that it moves in and out smoothly. If OK, go to step 14, if not, replace the pump as an assembly. The flow control valve is not available separately.
    Fig 4: Moving Flow Control Valve Back In Pump Housing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
14. Attach a hose (A) to the end of the flow control valve (B) as shown in illustration. Then submerge the flow control valve in a container of power steering fluid (C), and apply compressed air in the hose.
    • If air bubbles leak through the valve at less than 98 kPa (1.00 kgf/cm² , 14.2 psi), replace the pump as an assembly. The flow control valve is not available separately.
    • If the flow control valve is OK, set it aside for reassembly later.
      Fig 5: Attaching Hose To End Of Flow Control Valve

      Courtesy of AMERICAN HONDA MOTOR CO., INC.
15. Inspect the ball bearing by rotating the outer race slowly. If you feel any play (axial or radial) or roughness, remove the faulty ball bearing (A), and install a new ball bearing (B).
    Fig 6: Pressing Ball Bearing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
16. Inspect the driveshaft by rotating the inner race slowly. If you feel any play (axial or radial), remove the worn driveshaft (C), and install a new driveshaft (D).

    Reassembly 

17. Align the pin (A) of the subvalve (B) with the oil passage (C) in the pump housing, and push the subvalve into place, then install the snap ring (D).
    Fig 7: Aligning Pin Of Subvalve With Oil Passage In Pump Housing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
18. Install the new pump seal (A) (with its grooved side facing in) into the pump housing (B) by hand first, then drive it in using the driver handle (C) and bearing driver attachment (D) until there is no step at the top of the pump seal, and the seal is fully seated in the pump housing.
    Fig 8: Installing Pump Seal Into Pump Housing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
19. Position the driveshaft (A) in the pump housing, then press it in with the appropriate size socket (B) as shown in illustration.
    Fig 9: Positioning Driveshaft In Pump Housing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
20. Install the 40 mm snap ring (C) with its beveled edge facing out.
21. Coat the new pump cover seal (A) with power steering fluid, and install it into the groove in the pump cover (B).
    Fig 10: Coating Pump Cover Seal With Power Steering Fluid

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
22. Install the outer side plate (C) over the two roll pins (D) with its arrow marks stamped (E) facing down.
23. Set the cam ring (A) over the two roll pins with the "•" marks (B) facing down.
    Fig 11: Identifying Cam Ring Roll Pins With Marks

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
24. Install the rotor (A) to the pump cover (B).
    Fig 12: Installing Rotor To Pump Cover

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
25. Set the 10 vanes (C) into the grooves in the rotor. Make sure that the round ends (D) of the vanes are in contact with the sliding surface of the cam ring.
26. Coat the new 15.2 mm O-ring (A) with power steering fluid, and install it into the groove in the side plate (B).
    Fig 13: Coating O-Ring With Power Steering Fluid

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
27. Install the side plate on the cam ring (C) by aligning the roll pin set holes (D) in the side plate with the roll pins (E).
28. Coat the new 51.0 mm O-ring (A) with power steering fluid, and position it in the bottom of the pump housing.
    Fig 14: Installing Pump Cover Assembly In Pump Housing And Bolts With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
29. Install the pump cover assembly (B) in the pump housing. Tighten the bolts to the specified torque alternating in two or more steps.
30. Coat the flow control valve (A) with power steering fluid, then install it and the flow control valve spring (B) in the pump housing.
    Fig 15: Flow Control Valve Cap With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
31. Coat the new 18.7 mm O-ring (C) with power steering fluid, and install it on the flow control valve cap (D), then install the cap on the pump housing. Tighten it to the specified torque.
32. Coat the new 14.8 mm O-ring (A) with power steering fluid, and install it on the inlet joint (B). Install the inlet joint on the pump housing.
    Fig 16: O-Ring And Inlet Joint With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
33. Install the pulley (A), then loosely install the pulley nut (B). Hold the steering pump in a vise with soft jaws (C). Be careful not to damage the pump housing with the jaws of a vise.
    Fig 17: Holding Steering Pump In Vise With Soft Jaws With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
34. Hold the pulley with the pulley holder (D), and tighten the pulley nut to the specified torque.
35. Check that the pump turns smoothly by turning the pulley by hand. If it turns hard, loosen the four flange bolts on the cover, then retighten them in the same manner as in step  29. Retest. If the pump is still hard to turn, replace the pump.
36. Reinstall the power steering pump (see PUMP REPLACEMENT  ).