Honda Acura NSX 1991 Service Manual page 396

Description
Clutches (cont'd)
Lock-up Clutch
1 . Operation (clutch on)
With the lock-up clutch on, the oil in the chamber between the converter cover and lock-up piston is discharged, and the
converter oil exerts pressure through the piston against the converter cover. As a result, the converter turbine is locked on the
converter cover firmly. The effect is to bypass the converter, thereby placing the car in direct drive.
The power flows by way of:
E n g i n e
1
D r i v e p l a t e
Torque converter cover
Lock-up piston
Damper spring
1
Turbine
Mainshaft
2. Operation (clutch off)
With the lock-up clutch off, the oil flows in the reverse of CLUTCH ON.
converter cover; that is, the torque converter lock-up is released.
E n g i n e
D r i v e p l a t e
1
Torque converter cover
Pump
Turbine
14-8
LOCK-UP PjSTON
TORQUE CONVERTER
COVER COMP
DAMPER SPRING
To oil cooler
As a result, the lock-up piston is moved away from the