The leakage is coming from the hydro pump seals becasue the seals get hard from the heat and start leaking. A common problem with older machines. Since the boom and bucket are working, the drive is intact for the left hydro pump, left being determined as you stand behind the machine facing forward. Could have sheared the hydro motor shaft at the side gear case.
Hello Mike, 2001 ls180 with oil over flowing the bell housing.
I tried testing if the right or left lever would cause it to fill and it seemed either or.
This was almost 2 months ago now but I am pretty sure that the drive actions on both levers did not cause the over flow.
This lead me to assume the right pump (standing behind machine looking to the front) had been leaking into the bell housing. If I remember correctly, that pump handle all of the boom and bucket functions.
I now have the pump out and in the 3 pieces.
I do not know how to test which seals needs replacing or even how many seals there are . The large oring seals should be fine as no oil leaks to atmosphere, only into the bellhousing aka gear box. So it may be an internal shaft seal of some sort but I have reached the max of my knowledge and looking for some experience/wisdom to get this back together.
Thank You!