TSRM/MK2 Supra/Repair Manual
Repair ManualWiring Diagrams
p.064
AT/Automatic Transmission65 / 120
p.066
AUTOMATIC TRANSMISSION — Component Groups (Front Clutch) — MK2 Supra Automatic Transmission, page 65
100%
2. INSPECT DISC, PALTE AND FLANGE Check that the sliding surface of disc is not worn or burnt. If the disc is worn or burnt, replace all discs. Then check that the sliding surfaces of plate and flange are not worn or burnt. If necessary, replace them. NOTE: Do not allow the discs to dry out. Prepare new discs by soaking them at least two hours in ATF. ASSEMBLY OF FRONT CLUTCH (See page AT-63) 1. INSTALL NEW O-RINGS ON PISTON 2. INSTALL PISTON IN FRONT OF CLUTCH DRUM Press the piston into the housing with the cup side up (check ball down). Be careful not to damage the O-rings. 3. INSTALL TWENTY PISTON RETURN SPRINGS, SPRING RE- TAINER AND SNAP RING IN PLACE 4. COMPRESS RETURN SPRINGS AND INSTALL SNAP RING IN GROOVE (a) Place SST on the spring retainer, and compress the springs with a shop press. SST 09350-20013 (09369-20040) (b) Install the snap ring with a screwdriver. 5. INSTALL DISCS AND PLATES WITHOUT ASSEMBLING THINNER SNAP RING (a) Do not assemble the thinner snap ring yet. (b) Using low-pressure compressed air, blow all excess ATF from the discs. For measurement of the clutch pack, install all plates and discs temporarily without thinner snap ring). CAUTION: High-pressure air will damage the discs. Install in order: Plate-disc-plate-disc-plate-disc-plate (no snap ring)-disc 6. CHECK PISTON STROKE OF FRONT CLUTCH (a) Install the rear clutch hub and the outer snap ring. (b) Install the front clutch drum onto the rear clutch case. With a dial indicator, measure the stroke applying and releasing the compressed air (392 - 8 kgf/cm², 57 - 114 psi or 392 - 785 kPa) as shown. Standard piston stroke: 1.40 - 2.24 mm (0.0551 - 0.0882 in.) If not within specification, select a proper plate. NOTE: There are two different thickness. Plate thickness: 1.8 mm (0.071 in.) 2.0 mm (0.079 in.)