Toyota 4-Runner 1985 Repair Manual page 455

AUTOMATIC TRANSMISSION - Component Groups (Rear Clutch)
AT-53
3.
4.
(~
\~J
~
C4781 AT0008
5.
6.
C4780
7.
C4778
INSTALL EIGHTEEN PISTON RETURN SPRINGS AND SET
RETAINER WITH SNAP RING IN PLACE
COMPRESS RETURN SPRINGS AND INSTALL SNAP RING
IN GROOVE
(a) Place SST on the spring retainer, and compress the
spring on a shop press.
SST 09350-20013
(b) Install the snap ring with snap ring pliers.
Be sure the end gap of the snap ring is not aligned
with the spring retainer claw.
INSTALL DISCS, PLATES AND FLANGE
Using low-pressure compressed air, blow all excess ATF
from the discs.
CAUTION: High-pressure air will damage the discs.
Install in order: Plate-disc-plate-disc-plate-disc-flange (flat
end down)
INSTALL SNAP RING
Check that the snap ring ends are not aligned with one of
the cutouts.
CHECK PISTON STROKE OF REAR CLUTCH
Install the rear clutch onto the center support. Using a dial
indicator, measure the stroke applying and releasing the
compressed air (4 - 8 kg/cm2, 57 - 114 psi or 392 -
785 kPa)as shown.
Standard piston stroke:
0.91 - 1.99
mm
(0.0358 - 0.0783 in.)
If the stroke exceeds the limit, the clutch pack is probably
worn. If the stroke is less than the limit, parts may be mis-
assembled or there may be excess ATF on the discs.