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Forward Clutch Cylinder: Disassembly

  1. Inspect the clutch cylinder thrust surfaces, piston bore and clutch plate serrations for scores or burrs. Minor scores or burrs may be removed with crocus cloth. Install a new clutch cylinder if it is badly scored or damaged.
  2. Check the fluid passage in the clutch cylinder for obstructions. Clean out all the fluid passages. Inspect the clutch piston for scores and install a new piston if necessary. Inspect check balls for freedom of movement and correct seating.
  3. Check the clutch release spring for distortion and cracks. Install a new spring (including wave spring) if distorted or cracked.
  4. Inspect the composition clutch plates, steel clutch plates and clutch pressure plate for worn or scored bearing surfaces. Install new parts if they are deeply scored or burred.
  5. Check the clutch plates for flatness and fit on clutch hub serrations. Discard any plate that does not slide freely on serrations or that is not flat.
  6. Check the clutch hub thrust surfaces for scores and clutch hub splines for wear.
    7. NOTE: The forward clutch hub may remain in the shell during disassembly.
    Fig 1: Locating No. 3 Forward Clutch Hub Front Bearing
    G04628529Courtesy of FORD MOTOR CO.
  7. Remove the forward clutch hub and the No. 3 forward clutch hub front bearing.
    8. NOTE: To aid handling, the forward clutch assembly may be set in the extension housing or a hole in the work bench.
    Fig 2: Identifying Clutch Pack Retaining Ring
    G03929980Courtesy of FORD MOTOR CO.
  8. Remove the forward clutch pack selective retaining ring.
  9. Remove the following components.
    1. Remove the pressure plate.
    2. Remove the clutch pack.
    3. Remove the pressure spring.
      Fig 3: Identifying Pressure Spring & Clutch Pack
      G04628531Courtesy of FORD MOTOR CO.
    10. CAUTION: Apply only enough pressure to release pressure on the retaining ring. If too much pressure is applied, the spring may break.
    Fig 4: Removing Forward Clutch Retaining Ring
    G04628532Courtesy of FORD MOTOR CO.
  10. Using the special tool, remove the forward clutch retaining ring.
  11. Slowly release the press and remove the forward clutch from the press.
  12. Remove the forward clutch retainer and the return spring.
    Fig 5: Locating Forward Clutch Retainer & Return Spring
    G04628533Courtesy of FORD MOTOR CO.
    13. NOTE: Air pressure may be required to remove the forward clutch piston.
    Fig 6: Locating Forward Clutch Piston
    G04628534Courtesy of FORD MOTOR CO.
  13. Remove the forward clutch piston.
  14. Remove the inner and outer forward clutch piston seals.
    Fig 7: Identifying Inner And Outer Forward Clutch Piston Seals
    G03888820Courtesy of FORD MOTOR CO.
    15. NOTE: The seals are solid seals, however, when installing new seals use scarf-cut seals.
    Fig 8: Locating Scarf-Cut Seals On Input Shaft
    G04584613Courtesy of FORD MOTOR CO.
  15. Remove the forward clutch input shaft seals.
  16. Make sure the check ball in the clutch cylinder is free and clean. Check for correct seating.
    Fig 9: Locating Check Ball In Clutch Cylinder
    G04628537Courtesy of FORD MOTOR CO.
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