Honda Acura NSX 1991 Service Manual page 410

Description
Main Valve Body
The main valve body is located on the torque converter housing. The oil pump gear, torque converter check valve, manu-
al valve, 1-2, 2-3, 3-4 shift valves, relief valve and one-way relief valve are all built into the main valve body.
The primary function of this valve body is switching on and off oil passages and controlling the hydraulic pressure going
to the hydraulic control system.
RELIEF VALVE
ONE-WAY RELIEF
VALVE
VALVE
MANUAL VALVE
14-22
OIL PUMP DRIVEN GEAR
\
l-2 SHIFT VALVE
TORQUE COVERTER
CHECK/VALVE
MANUAL VALVE
DETENT SPRING
\
2-3 SHiFT VALVE