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, 32 x 35 mm 07746-0010100
  NOTE: Refer to the Exploded View as needed during the following procedure.

Disassembly 

1. Drain the power steering fluid from the reservoir (see FLUID REPLACEMENT ).
2. Remove the power steering pump (see PUMP REPLACEMENT ).
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 the 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, 16.7 mm O-ring, flow control valve, and flow control valve spring.
6. Remove the pump cover and pump cover seal.
7. Remove the cam ring, outer case, rotor, vanes, side plate, and 23.8 mm O-ring.
8. Remove the pump housing cap, 12.7 mm O-ring, and the pump preload spring.
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 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 (A) is not available separately.
    Fig 4: Checking Flow Control Valve

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
14. Attach a hose (A) to the end of the flow control valve (B) as shown. 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 (1.0 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 one (B).
    Fig 6: Identifying 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. Install the new pump seal (A) (with its grooved side facing in) into the pump housing (B) by hand, then drive it in using the driver handle (C) and the attachment (D) until the pump seal is fully seated in the pump housing. Do not apply more than 1, 370 N (140 kgf, 308 lbf) of pressure.
    Fig 7: Aligning Pin Of Subvalve With Oil Passage In Pump Housing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
18. Position the driveshaft (A) in the pump housing, then press it in with the appropriate size socket (B) as shown.
    Fig 8: Identifying Pump Seal Installation Position

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
19. Install the 40 mm snap ring (C) with its radiused edge facing out.
20. Coat the new 23.8 mm O-ring (A) with power steering fluid, then position it on the bottom (B) of the pump housing.
    Fig 9: Positioning Pump Driveshaft In Pump Housing

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
21. Coat the new cover seal (A) and new 13.0 mm O-rings (B) with power steering fluid, then position them into the grooves on the cover (C).
    Fig 10: Identifying Pump Cover Seal And Pump Cover

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
22. Install the outer case (A) by aligning the slot (B) inside the outer case with the pump cover roll pin set hole (C).
    Fig 11: Aligning Cam Ring With Mark

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
23. Insert the roll pin (D) into the slots between the cam ring and outer case, then push the roll pin into the set hole.
24. Install the cam ring (A) by aligning the slot (B) with the slot (C) in the outer case.
    Fig 12: Identifying O-Ring And Side Plate

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
25. Insert the roll pin (D) into the slots between the cam ring and outer case, then push the roll pin into the set hole (E).
26. Apply power steering fluid to the new rubber seal (F) (black), and install it in the slot (G) of the cam ring.
27. Apply power steering fluid to the new slipper seal (H) (white), and install it on top of the rubber seal you just installed.
28. Install the rotor (A) into the cam ring (B).
    Fig 13: Installing Rotor To Pump Cover

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
29. Set the 11 vanes (C) in 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.
30. Place the side plate (A) on the cam ring, and align the roll pin set hole (B) with the roll pin (C).
    Fig 14: O-Ring And Pump Cover Assembly With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
31. Coat the new 57.2 mm O-ring (D) with power steering fluid, then position it into the groove on the side plate.
32. Install the pump housing (A) over the cover assembly (B).
    Fig 15: Identifying Pump Housing (A) & Cover Assembly (B)

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
33. Align the bolt holes in the cover (A) with the threaded holes in the pump housing. Install the flange bolts loosely first, then torque the flange bolts to the specified torque alternating in two or more steps.
    Fig 16: Identifying Pump Housing & Bolts

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
34. Push in the cam ring (A) from the pump housing cap hole (B) with a flat-tip screwdriver to make sure the cam ring is fully seated against the outer case.
    Fig 17: Identifying Cam Ring (A) & Housing Cap Hole (B)

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
35. Install the pump preload spring (A) in the pump housing.
    Fig 18: Identifying Pump Preload Spring (A), O-Ring (B), And Housing Cap (C)

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
36. Coat the new 12.7 mm O-ring (B) with power steering fluid, and install it on the pump housing cap (C).
37. Install the pump housing cap on the pump housing, and tighten it to the specified torque.
38. Install the flow control valve spring (A) in the pump housing.
    Fig 19: Flow Control Valve And Spring With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
39. Coat the flow control valve (B) with power steering fluid, and install it in the pump housing.
40. Coat the new 16.7 mm O-ring (C) with power steering fluid, and install it on the flow control valve cap (D).
41. Install the pressure control valve cap on the pump housing, and tighten it to the specified torque.
42. Coat the new 14.8mm O-ring (A) with power steering fluid, and install it on the inlet joint (B).
    Fig 20: O-Ring And Inlet Joint With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
43. Install the inlet joint on the pump housing.
44. Install the pulley (A), then loosely install the pulley nut (B). Hold the steering pump in a vise with soft jaws. Be careful not to damage the pump housing with the jaws of the vise.
    Fig 21: Holding Steering Pump In Vise With Soft Jaws With Torque Specifications

    Courtesy of AMERICAN HONDA MOTOR CO., INC.
45. Hold the pulley using the pulley holder, and tighten the pulley nut to the specified torque.
46. Check that the power steering pump turns smoothly by turning the pulley by hand. If it turns hard, loosen the four flange bolts on the pump cover, then retighten them in the same manner as in step 33. Retest. If the power steering pump is still hard to turn, replace the power steering pump.
47. Install the power steering pump (see PUMP REPLACEMENT ).