Tractor Repair: Kubota l2050, shaft seal, hydraulic oil

Question
the crankcase is filling up with what appears to be hydraulic oil. I have changed the seal between the oil and hydraulic pump it filled up again. any suggestions as to what else could be the culprit.

Answer
 Hello,

 Do you have to keep adding hydraulic oil?  If not, then it's not hydraulic oil.  Make sure it's not fuel.  If it is hydraulic oil and you changed the pump shaft seal already, Then the pump might be worn out and is bypassing so much oil that the seal is being over-pressurized and can't hold it in.  If it's fuel, the injection pump is leaking internally.

                          Arnie