Honda Civic Service Manual page 701

Description
Hydraulic Control (cont'dl
Regulator Valve
The regulator valve maintains a constant hydraulic pressure from the ATF pump to the hydraulic control
system, white
also furnishing fluid to the lubricating system and torque converter. The fluid from the ATF pump flows through
B and 8,.
The regulator valve has a valve orifice. The fluid entering from B flows through the orifice to the A cavity. This pressure
of
the A cavity pushes the regulator valve to the right side, and this movement of the regulator valve uncovers
the fluid port
to the torque converter and the relief valve. The fluid flows out to the torque converter, and the relief
valve and regulator
valve moves to the left side. According to the level of the hydraulic pressure through B, the position of the regutator
vatve
changes and the amount of the fluid from B' through D and c also changes. This operation is continued.
maantaining the
line pressure,
NOTE: When used. "|eft" or "right" indicates direction on the illustration betow.
ENGINE NOT RUNNING
TOROUE CONVERTER
ENGINE RUNNING
To TOROUE CONVERTER Lubrication
Stator Roaction Hydraulic Prossur6 Control
Hydraulic pressure increases according to torque, are performed by the regulator valve using the stator
torque reaction.
The stator shaft is splined with the stator in the torque converter, and its arm end contacts the regulator
sprang cap. when
the vehicle is accelerating or climbing (Torque Convert€r Range), the stator torque reaction acts on the stator
shaft, and
the stator arm pushes the regulator spring cap in the direction of the arrow in proponion to the reaction. Jne stator
reac-
tion spring compresses, and th€ reoulator valve moves to increase the line pressure which is regulated by
the regulator
valve. The line pressure reaches its maximum when the stator torque reaction reaches its maximum.
STATOR SHAFT ARM
REGULATOR VALVE
14-22
STATOR
ATOR SHAFT ARM
SPRING CAP