Clutch slave cylinder pushrod - how much travel?

[Kevin_B]

Hi everyone,

I'm trying to diagnose a clutch issue in a 92 B2600i (clutch disengages quite low in the pedal stroke) and I have a couple of questions.

Does anyone have any idea how much the clutch slave cylinder should move, when the clutch pedal is fully depressed? And, should there be any wiggle in the release fork when the pressure is released when bleeding the system? And finally, should it be possible to compress the slave cylinder pushrod by hand (it's tough, but I can do it) - it would think I shouldn't be able to, but I don't have another B2600 to test. I replaced the clutch slave and master cylinders over the last week, bled the system until I was getting nice new clean fluid, and then bled it some more for good measure, without any real change in the operation or feel of the clutch. It still disengages quite low in the stroke. Pedal free play and height seem good. The clutch operates fine otherwise, gear shifting is relatively smooth for an old truck. Could the low disengagement be a sign of a nearly worn out clutch disk?

I'm going to try a re-bleed and see if it helps. I'm pretty sure I bench bled the Master properly, but shouldn't a full system bleed take care of that anyways?

Thanks!