1987 BMW 325 no clutch!

While driving, the care lost all torque to the transmission while in gear. I did hear a "cloink!". With the engine idling, I can shift into any gear without using the clutch. While towing, I can feel that the transmission is engaged but getting no torque from the engine. The clutch pedal behaves normally. I pulled the clutch cylinder and it appears to operate normally though the bleeder valve is clogged: I was unable to bleed the system. The shift linkage appears and feels normal. There is an intermittent scraping sound-- perhaps from the bell-housing.

Before I pull the tranny--what might be happening here to prevent the clutch from ever engaging? It acts just like it would if I had the clutch in--

Thanks for any advice or input!