
AT-94 AUTOMATIC TRANSMISSION — Component Groups (Valve Body)
INSPECTION OF UPPER FRONT VALVE BODY
INSPECT VALVE SPRINGS
Check for damage, squareness, rust and collapsed coils.
Measure the spring free height and replace if less than that
shown below.
Spring Free height mm (in.) Color
(1) Secondary regulator
valve 71.27 (2.8059) Green
(2) Down-shift plug 39.55 (1.5571) Green
(3) Throttle valve 19.24 (0.7575) None
(4) Cut-back valve 23.00 (0.9055) Green
ASSEMBLY OF UPPER FRONT VALVE BODY
See page AT-92
1. INSERT THROTTLE VALVE
Note arrangement in the figure. Make sure that the valve
is inserted fully into the bore.
2. INSTALL THROTTLE VALVE RETAINER
Coat the retainer with petroleum jelly to keep it in place.
Note position of tabs in the figure. Slip the retainer into
place in the valve body.
3. INSTALL ADJUSTING RINGS AND SMALL SPRING ON
THROTTLE VALVE SHAFT
(a) Install the same number of adjusting rings as were re-
moved during disassembly.
(b) Slip the spring over the valve shaft.
Compress and slide into place.
4. INSERT SPRING AND DOWN-SHIFT PLUG
(a) Push the down-shift plug into the bore.
(b) Coat the pin with petroleum jelly and install it to hold
the sleeve.