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21-18
AUTOMATIC TRANSAXLE - Translxle Mechanism
TRANSAXLE MECHANISM
GENERAL DESCRIPTION
The F4A33 not only
has
reinforced and enlarged
gears, changes
in
the shaft layout
becouse
of this
and an
increas
e
in transaxle torque capacity
compared
to
the F4A2 line, but quietness has also
been improved by improving gear precision,
etc.
TfA0578
-,
TORQUE CONVERTER
There are 2 types of torque converters for the 3.0 liter DOHC
engine and 3.0
liter
SOHC engine. Not only has the
nominal
diameter been
increased
to match the
increase in
transaxle
capacity,
but
also
considerations are made to match
it
with
the
engine
and to determine the best torque capacity and
stall torque ratio in order to
improve
starting
response
and
fuel
consumption.
Furthermore, a damper
spring
is
put
in
the damper clutch for
a smooth
drivinl;l
feeling.
The
amount of slipping of the
torque
converter has
been
reduced
for
a
further
reduction
in
fuel consumption.
TRANSAXLE CASE
Not only has the layout
oj
the shafts been chMged as shown
in the figure on
the
left because 01 the enlargement of
the
gears
inside
the transaxle, but the converter housing and
transaxle case have also been made
into
one unit to improve
the
rig
idity
of
the
transaxle case.
PARKING MECHANISM
In
order to
reduce
the force n&eded to
move
the selector
lever, a needle bearing
is
used
in the manual control shaft
bearing. At the same time,
the
parking sprag rod
cam
is
changed
to
a roller to
reduce the force
retired to release the
parking brake when
the
vehicle
is
stopped on an
incline.
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