TSRM/MK3 Supra/Repair Manual
Repair ManualWiring Diagrams
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AT/Automatic Transmission77 / 144
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AUTOMATIC TRANSMISSION — Component Parts (Overdrive Planetary Gear, Overdrive Direct Clutch and Overdrive One-Way Clutch) — MK3 Supra Automatic Transmission, page 77
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8. CHECK PISTON STROKE OF OVERDRIVE DIRECT CLUTCH (a) Place the oil pump onto the torque converter, and then place the O/D direct clutch assembly onto the oil pump. (b) Using SST and a dial indicator, measure the overdrive direct clutch piston stroke applying and releasing the compressed air (4 — 8 kg/cm², 57 — 114 psi or 392 — 785 kPa) as shown. SST 09350-30020 (09350-06120) Piston stroke: 1.85 — 2.15 mm (0.0728 — 0.0846 in.) If the piston stroke is less than the limit, parts may be misassembled and reinstall them. If the piston stroke is nonstandard, select another flange. NOTE: There are six different thicknesses for the flange. Flange thickness mm (in.) No. Thickness No. Thickness 16 3.6 (0.142) 19 3.3 (0.130) 17 3.5 (0.138) 20 3.2 (0.126) 18 3.4 (0.134) 21 3.1 (0.122) 9. INSTALL OVERDRIVE DIRECT CLUTCH ASSEMBLY (a) Align the flukes of discs in the direct clutch. (b) Install the direct clutch assembly onto the O/D planetary gear. 10. CHECK OPERATION OF ONE-WAY CLUTCH Hold the O/D direct clutch drum and turn the input shaft. The input shaft turns freely clockwise and locks counter-clockwise.