Manual Transmission And Differential - Subaru XT 1988 Service Manual

3-1 MANUAL TRANSMISSION AND DIFFERENTIAL
OPERATION OF CENTER DIFFERENTIAL AND
POWER TRANSMITTING MECHANISM
1) Engine torque is transmitted to the clutch and main shaft.
It is then transmitted to the hollow driven shaft after being
multiplied by the respective speed gears.
2) The rear end of the hollow driven shaft is coupled directly
to the pinion of the center differential via the pinion shaft,
and torque is transmitted equally to the front and rear final
drives. Any difference in rotating speed between the front and
rear wheels is absorbed through the action of this differential
unit.
3) The torque or driving force thus transmitted and dis-
tributed is then transferred to the axle shafts and tires via the
front and rear final drives.
4) When the car is going straight ahead, the drive pinion and
transfer drive gear rotate as a unit. When making a turn, tight
corner braking is avoided by the action of the center differen-
tial.
Power transmission when the car is going straight ahead (When driving in 5th gear)
Clutch
Input shaft
To front wheel
Drive pinion
Power from the engine is transmitted as follows:
r1
Hollow
Center
driven shaft
f--
Pinion shaft
-
differential
r-
pinion
' - -
Fig.
9
Rear bevel
gear
Front bevel
gear
f--
6
Center differential
lock selector
Center differential
Front
Drive pinion
differential
Transfer Transfer
-
drive gear driven gear
To rear axle
'--
Rear
differential
L3496