If the ball bearing was missing the clutch wouldn't 'disengage'.
Like said above, take out the 'pressure plate' and rotate it 60 degrees, see if it sits 'in' further. I had this problem with mine, I turned it a couple of times and it went flush.
Go steady tightening the springs, do them all in turn, opposites a little at a time and don't over tighten as the inner boss casting is super brittle and you'll shear off the bit the screws go into. Either go steady or do it right with a torque wrench. (unlike me, I'm an idiot!)
Like said above, take out the 'pressure plate' and rotate it 60 degrees, see if it sits 'in' further. I had this problem with mine, I turned it a couple of times and it went flush.
Go steady tightening the springs, do them all in turn, opposites a little at a time and don't over tighten as the inner boss casting is super brittle and you'll shear off the bit the screws go into. Either go steady or do it right with a torque wrench. (unlike me, I'm an idiot!)
-suck-squeeze-bang-blow-