833 making odd noise in 2nd gear only

I broke lotsa syncros never had a noise other than the crunch of gear mesh.
Heard a few trans with bad bearings, noisy, the noise you describe reminds me of noises from a broken tooth .
Drain the oil, look for chunks in the oil, magnetize a screwdriver or Allen key, put it thru the drain hole, and swing it around the bottom inside, see what comes out, - I bet the trans comes out, - but hope I'm wrong.
Would still like a vid .
Good luck .