Some time ago I put a thread regarding clutch problems. This is now sorted but read the story and keep in mind as many people in this forum have reported creaking clutch pedals.
My 166 had a creaky clutch pedal, thought it was one of those Alfa peculiarities, didn't check. Over past 3-4 months changing gear became more and more difficult and clutch would not return to its original position (had to pull up with my foot every time I changed gear). Visited garage they checked and recommended clutch change. Eventually fitted new clutch... but gears still would not engage.
After advice from garage, fitted new master cylinder. It worked!..only for a couple of days until same problems encountered again. Took back to garage they checked thoroughly
and concluded it was air in the system, bled it and it worked ...for a day or two.
Then in the middle of a busy city centre junction, pedal stays on the floor, could not engage gear. Using starter motor limped to the nearest garage and asked them to look at it.
It took the guy 2 minutes to report that the the pedal frame against which the master cylinder acts had a big crack and was bending back every time the pedal was depressed, reducing the effective pedal travel, hence not releasing clutch
That was the problem all along
No need for clutch change, no need for master cylinder change
In fact the mechanic said that as soon as I heard creaking noises from the pedals (not cured by WD40), I should have someone check this thoroughly.
So for many of you that have encountered creaking noises every time the clutch pedal is depressed, or pedal staying on the floor, check thoroughly for any cracks. (the reason pedal does not return fully up is that the master cylinder actuator is missalligned when frame bends and does not allow free return - it is purely mechanical not hydraulic problem)
If you have good look at this frame, you will see it is a very flimsy one, not something AR should use on a "luxury model"
By the way if anyone needs a second hand (but perfect working order) master cylinder for a TS let me know.