I think I get it.
Searched on boost spring function on the net and found that a lot of Porsche owners remove this spring for added feel - although the pedal gets stiffer. A lot of discussion on rennlist actually.
The pedal on mine was always very stiff - I now believe the spring has been broken since I bought the car - 5 years ago.
So now I do not need to worry - I am used to the stiff pedal and I do not need to try to get into the nasty upside down position to fix anything....
so, I've never understood this. Without the spring does it change the clutch engagement height at all? Mine engages at a point with pedal all the way out with hardly any play but does not slip.
Would not think it changes anything in the geometry.
It is merely acting as an aid to make the pedal less heavy - if I have understood it correctly....
The spring i depicted at the beginning of this thread - is ot the full spring or only part of it - anyone knows?