The master cylinder is above the slave cylinder. Gravity would put some pressure on the slave cylinder.
I don't see any way for the slave to back off the throw out arm.
On an old truck with mechanical linkage, there are two springs to keep the throw out bearing off the pressure plate fingers. And, when adjusted correctly, it works. Al ========= =========
The slave does not back off the "throw out" arm. It stays in contact with it. (Release Arm)
Why..??....because if it didn't ..... it would fall out the ball seat on the release arm and when you stomped down on the clutch pedal the rod would shoot out into the bellhousing.....and the slave cylinder piston would come blowing out. Which would be a nasty thing and quite the inconvenience to repair all the time.
ROTFLMBO!!! Got news for you, friend. There are many hydraulic pushrod / socket arrangements that have slack in them . . .Ya just need a socket made a little deeper or a soft rubber retainer to hold them together . . .look at the brake pedal push rod if you need proof. And before you cackle again, the hydraulic pressure on this rod is from the return springs on your braking system pushing it back up after a brake application..
A spring placed BEHIND the apply piston inside the slave keeps the piston forward, pushing forward the apply rod, against the release arm, moving the release bearing forward on the bearing retainer, which rides in contact with the pressure plate......AT ALL TIMES, unless the systems fubar'ed.
That setup is wrong. The spring has to return the piston.
The spring tension of the Pressure Plate works against the spring tension of the Slave Cylinder apply piston.........
And your throwout bearing gets the bejesus worn out of it in short order.
and....wah..lah......
It's "voila!" (Fr) [Phonetic: v-wa-la], genius. oh, btw Miss Piggy doesn't say it right.
no hydraulic pressure..... Jest an ole timey mechanical spring and arm set up........in a fancy package.
Bwah-ha-ha-ha!!!!!
Can you figure out why the piston can move in and out at over 1500 rpms without creating hydr. pres. that would actually cause the clutch to apply?
Uh, strokes, which are what a piston does are not measured in RPMs, but strokes per (minute, second, day, year, millennium; pick one)
~:~ MarshMonster ~has to go work on his truck....got to get that brake master cylinder below the level of the calipers~
Well, if your driving is anything like your knowledge, then just head for the nearest sharp curve and you'll get the master cylinder below, above, below, above, below . . . .