833 Transmission won't disengage at stop after 100 miles.

My first thought was adjustment. I always adjust mine by removing the inspection cover and adjusting the air gap between the throw out beating and the pressure plate fingers. If you have 1/8"-3/16" gap after cycling the pedal a few times, the clutch will operate properly with no issues. If you have marks on the fingers, the bearing has been riding on the fingers followed with a noisy bearing. It has failed and is not designed to constantly ride the fingers. If it oes, it is partially disengaging the clutch (which is why it got worse with more miles and more heat. You might want to start with a fresh clutch, surface the flywheel and adjust it properly from the start.