Direct Clutch: Inspection

Clean all components (except discs) with solvent. Dry with compressed air. Inspect plates and discs for flaking or burnt areas. If disc lining is peeling or discolored, replace discs as necessary.
Ensure check ball is free in clutch piston. Apply air pressure to check ball area. Ensure check ball does not allow air to bleed through piston.
Using calipers, measure free length of piston return springs. Standard free length is .596" (15.13 mm). Replace return springs that do not measure as specified.

Fig 1: Measuring Direct Clutch Piston Stroke & Removing Piston Subassembly

Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

CAUTION: Clutch discs should be soaked in ATF for 15 minutes prior to installation. Lubricate all parts with ATF.