My PTO still makes noise when it disengaged..it's getting some worn parts internally...I can put my hand on the pto pulley and feel it vibrating/rattling.
Hi,
One possibility that could be causing what you said is the PTO pilot bushing.
I have seen one that was dry, and worn with grooves in it.
The bushing is at the front of the PTO shaft, about 12" in from the rear of the housing.
The bushing is in the end of the long clutch shaft.
TM Tractor Parts has a new PTO pilot bushing.
There is a How To in the How To section on here showing how to remove the bushing, I think he turned a bolt into the bushing.
If the end of the PTO shaft where it goes in the bushing isn't smooth, it needs repair, or the shaft replaced.
The Cub service manual tells about removing the PTO, and putting it in.
Below are pictures. Pictures 1, 2, and 4 are from TM Tractor Parts.
1 shows the PTO shaft.
2 shows the bushing in the rear of the clutch shaft.
3 shows where it is, the upper shiny part in the picture.
4 shows the PTO clutch, it turns the PTO on or off, by sliding on the shaft. I think it mostly covers the bushing area, so the bushing gets little oil, from the gears throwing oil.