Hi, guys. First time posting in the technical section.
My 156 has proven itself reliable as a Corolla these past (almost) four months. No issues whatsoever, until now
When I got into the car two days ago, I immediately noticed the clutch pedal wasn't as before - it had no resistance when stepping on it; it only disengaged way down in the pedal's travel and started to engage literally a few millimetres from the floorboard.
Fortunately it still engages gear (although I have to make sure the pedal is mashed to the floor before shifting). It also tends to get better as the kilometres move along - and obviously after lots of clutch pedaling.
There are no fluid leaks beneath the car nor at the master cylinder. Brake fluid level is also still okay. Pumping the pedal doesn't result in change in brake fluid level, signifying to me that the master cylinder is still working as it should, with no internal leaks.
However, pumping the pedal does reveal a strange sound at the gearbox: it sounds like either a squeak (like the thrust bearing sliding on its guide tube), or like compressed fluid escaping past leaking seals (however, no signs of fluid leaks on the ground).
It's as if air is getting into the system overnight. Does it sound like a leaking slave cylinder? Can a very worn clutch disc and pressure plate also cause these symptoms?
Either way, sounds like gearbox is coming out soon