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Home >> Lincoln >> 2017 >> MKT Base, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 6F50/6F55 >> Disassembly And Assembly >> Main Control Overhaul >> Overhaul
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Main Control Overhaul: Overhaul

  1. Discard the specified component. Follow local disposal regulations.
    GFD93253Courtesy of FORD MOTOR COMPANY
  2. GFD93254Courtesy of FORD MOTOR COMPANY
  3. Discard the specified component. Follow local disposal regulations.
    GFD93255Courtesy of FORD MOTOR COMPANY
  4. NOTE: Note the location of the check balls for assembly.
    GFD93256Courtesy of FORD MOTOR COMPANY
  5. Remove the lower valve body assembly.
    GFD93257Courtesy of FORD MOTOR COMPANY
  6. Discard the specified component. Follow local disposal regulations.
    GFD93258Courtesy of FORD MOTOR COMPANY
  7. GFD93259Courtesy of FORD MOTOR COMPANY
  8. NOTE: Remove the valves by tapping the valve body on the palm of the hand to slide the valves out of the bores. It may be necessary to remove the valves and springs using a pick. If it is necessary to use a pick, use extreme caution to prevent damaging the valves or valve bores. If necessary, disassemble parts of the main control valve body in small groups. Take special care when handling the main control components, since they are the most precise and delicate parts of the transmission. Neatly arrange the parts as they are removed to avoid mixing similar pieces.
    NOTE: Do not stone or polish any valves. If the valves do not move freely, install a new assembly.

    Remove the individual valves and springs from the main control valve body and lower valve body by removing the retaining clips. See the Valve Body and Lower Valve Body illustrations at the beginning of this procedure for valve and spring locations. Clean valves, springs, main control valve body and lower valve body.

    GFD93260Courtesy of FORD MOTOR COMPANY
  9. NOTE: Do not stone or polish any valves. If the valves do not move freely during assembly, install a new valve body.

    Install the valve body valves, springs and retaining clips in the main control valve body and lower valve body. See the Valve Body and Lower Valve Body illustrations at the beginning of this procedure for valve and spring locations.

  10. GFD93259Courtesy of FORD MOTOR COMPANY
  11. GFD93261Courtesy of FORD MOTOR COMPANY
  12. GFD93257Courtesy of FORD MOTOR COMPANY
  13. NOTE: Install the check balls in the correct location as noted during disassembly.
    GFD93256Courtesy of FORD MOTOR COMPANY
  14. GFD93261Courtesy of FORD MOTOR COMPANY
    1. 63 mm (2.48 in) bolts
    2. 35 mm (1.377 in) bolts
    GFD93262Courtesy of FORD MOTOR COMPANY
    • Tighten to 12 Nm (106 lb-in).
    GFD93254Courtesy of FORD MOTOR COMPANY
    1. 63 mm (2.48 in) bolts
    2. 35 mm (1.377 in) bolts
    GFD93263Courtesy of FORD MOTOR COMPANY
    • Tighten to 12 Nm (106 lb-in).
    GFD93264Courtesy of FORD MOTOR COMPANY