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CASE COVER COMPONENTS Buick Century VI

Automatic Transaxle Overhaul & Testing - 4t65-e ~237 words

CASE COVER COMPONENTS

CAUTIONValve springs can be tightly compressed. Use care when removing retainers and plugs.

Note. DO NOT remove any bore plugs unless inspection indicates replacement is necessary.

Remove manual valve. Remove 3-4 accumulator piston cylinder and 3-4 accumulator piston "O" ring seal. Use low pressure compressed air from valve body side if necessary for removal. Remove 3-4 accumulator piston outer and inner spring, piston and pin from valve body side of case cover. Remove actuator feed limit valve spring retainer, spring and valve. (Scheme 159)

  1. Inspect 3-4 accumulator piston cylinder for porosity, scored pin or nicked or grooved piston sleeve. Inspect piston pin for scoring and free movement in piston bore. Inspect springs for distorted or broken coils. Inspect piston cylinder for porosity or cracks. Inspect for rough or scored seal surface, or cut seal. Inspect check ball, spring and bore plug. (Scheme 159)
  2. DO NOT remove blow-off check balls unless damaged. Inspect manual valve, link and spring link for damage. Check manual valve for binding or looseness in case cover. Check case cover plugs and orifice cup plug. Replace plugs if loose, plugged or missing.
  3. Inspect shaft bearing for damage. DO NOT remove bearing unless bearing is damaged. Inspect oil seal for missing garter spring or for cut lip seal.
  4. Inspect case cover for porosity, interconnected fluid passages, cracks or rough machined surfaces.
  5. Inspect input speed sensor for damaged or missing magnet, damaged housing, bent or missing electrical terminals, or damaged speed sensor clip.