Never really seen a procedure for it, and my boxster is automatic, but I have done this work on a 944 and an RX-7. But here's what I've learned from fixing/screwing those up. Generally there is a a master cylinder connected to the pedals, a reservoir on top of the master cylinder, a line from the master cylinder to the slave, and then slave cylinder. If the cylinders have rubber gaskets sealing their plungers, if either have ruptured you'll see a loss of pressure and an oil leak.
I've had the master go, which gave me oil under the pedal inside the car. I've never seen a slave go, but that would give you oil under the car. When I replaced the master cylinder in the RX-7 I failed to torque the bleed valve sufficiently, which caused it to pop off and gave me the same symptoms you saw. On the 944 I had a section of braided steel hose with rubber coating on it. Whenever I pushed the clutch the hose would weep oil, which is very confusing if you're working on the system by yourself, because the oil just seems to appear from no where.
|