ive been having a problem the past couple days with my clutch. the friction point keeps changing when the clutch is held down for an extended period. usually it feels like it sits a couple cm's from the top then drops to like an inch from the bottom.
this problem has happened before and i have already changed the slave cylinder, the master cylinder, the clutch itself and ive installed braided lines as well. it fixed the problem for about a month then all of a sudden it came back after giving her a bit of a go. i have also noticed the liquid in the master has become very dirty.
if you guys have any idea what the problem would be please any help would be appreciated

cheers!