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Home >> Ford >> 2002 >> Explorer 4.0 K, 4WD, Automatic >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Overhaul Automatic Transmission >> Disassembly And Assembly Of Subassemblies >> Fluid Pump >> Assembly

Fluid Pump: Assembly

    NOTE: Minor burrs and scoring may be removed with crocus cloth. If damage is found, install a new assembly.
  1. Inspect the fluid pump components for the following:
    • Pump body and case for burrs.
    • Fluid passages for obstructions.
  2. NOTE: Check and make sure that the garter spring in the seal has not popped off of the converter hub seal.
  3. Install a new seal onto the special tool.
  4. Fig 1: Installing Seal On Torque Converter Fluid Seal Installer
    G01672242Courtesy of FORD MOTOR CO.
  5. Using the special tool, install the converter hub seal.
  6. Fig 2: Installing Converter Hub Seal
    G01672243Courtesy of FORD MOTOR CO.
  7. Install a new O-ring seal in fluid pump drive gear.
  8. Fig 3: Installing O-Ring Seal In Fluid Pump Drive Gear
    G01672244Courtesy of FORD MOTOR CO.
    CAUTION: Lubricate the special tool with multi-purpose grease.
  9. Using the special tool, seat the O-ring seal in the pump gear.
  10. Fig 4: Seating O-Ring Seal In Pump Gear
    G01672245Courtesy of FORD MOTOR CO.
    CAUTION: The chamber on the inside edge of the small gear must be up when in the pump housing gear pocket. The dimple on the larger gear must be down when in the pump housing gear pocket.
  11. Install the pump gears into the fluid pump housing. Apply multi-purpose grease to pump gear to prevent scoring at start up.
  12. Fig 5: Installing Pump Gears In Housing
    G01672246Courtesy of FORD MOTOR CO.
  13. Install a new seal on the valve.
  14. Fig 6: Installing Seal
    G01672247Courtesy of FORD MOTOR CO.
  15. Install the valve with the tab facing down.
  16. Fig 7: Installing Valve
    G01672248Courtesy of FORD MOTOR CO.
  17. First install the fluid pump adapter plate and then the alignment pins in their correct location.
  18. Fig 8: Installing Aligning Pins
    G01672249Courtesy of FORD MOTOR CO.
    CAUTION: The special tools must be used to correctly align the pump with the adapter plate to reduce gear noise, bushing failure, and leakage.
  19. Using the special tool, align the fluid pump to the adapter plate.
  20. Fig 9: Aligning Fluid Pump To Adapter Plate
    G01672250Courtesy of FORD MOTOR CO.
  21. Using the special tools, assemble the pump.
  22. Fig 10: Assembling Pump
    G01672251Courtesy of FORD MOTOR CO.
  23. Loosely install the fluid pump housing screws in their correct location and remove the special tools.
  24. Fig 11: Installing Fluid Pump Housing Screws
    G01672252Courtesy of FORD MOTOR CO.
  25. Install the two remaining screws.
  26. Fig 12: Installing 2 Remaining Screws
    G01672253Courtesy of FORD MOTOR CO.
  27. Tighten all of the fluid pump screws in a star pattern.
  28. Fig 13: Tightening Fluid Pump Screws
    G01672254Courtesy of FORD MOTOR CO.
  29. Install a new fluid pump seal ring.
  30. Fig 14: Installing Fluid Pump Sealing Ring
    G01672255Courtesy of FORD MOTOR CO.
    CAUTION: Verify correct seal installation. Make sure seal grooves are clean and free of burrs.
  31. Install the seal.
Fig 15: Install Seal
G01672256Courtesy of FORD MOTOR CO.