S2000 L4-2.2L (2004)
Clutch Slave Cylinder: Description and Operation
Delay Orifice Mechanism (2004 model)
Function
The delay orifice mechanism improves clutch operation by delaying the slave cylinder release speed when the clutch pedal is suddenly released. The
delay orifice mechanism is built into the slave cylinder.
Operation
When the clutch pedal is pressed, the fluid pressure from the master cylinder moves the one-way valve in the direction shown in the illustration. The
fluid flows through two passages: the orifice part and the filter part. It then flows out to the slave cylinder to release the pressure plate and clutch disc
joint.
When the clutch pedal is released, the fluid pressure from the slave cylinder moves the one-way valve in the direction shown in the illustration. The
one-way valve blocks the filter-part passage and delays the clutch release speed by returning the fluid to the master cylinder through only the
orifice-part passage.
