Re: I love my 156, why wont it go into gear?
look at the top of the gearbox (may need to remove battery and intake etc) to see if the slave cylinder is pushing the clutch fork while someone pushes the clutch pedal.
if you see the clutch fork moving back and forth when you pump the clutch you know the parts of the clutch outside the bell housing are all doing their job. that means the problem is the clutch not disengaging, so you'll need to take the gearbox off to assess the situation. if you go to all the hassle of taking the box off you might as well replace the full clutch (plate, cover and thrust bearing) and have the flywheel surface inspected and resurfaced if neccessary.
if you dont see the clutch fork moving during the test you know the problem is with the clutch hydraulics or pedal machanism, so you should check the slave cylinder and master cylinder.