hydraulic oil in the engine oil

[tn farmer]

I have a kubota m9000 with hydraulic shuttle. Im getting hydraulic oil into the engine oil.had dealer replace the seals in both hydraulic pumps, didnt help the problem, had dealer replaced both pumps with new ones, and I still have same issue.the crankcasd fills with hydraulic oil and blows out of the blowby tube when it gets alot in the crankcase, the dealer doesn't know what else to do, any help would be greatly appreciated. Thanks

 

[100 td]

First thing, get all your money back from the dealer and take it to another dealer or independent repair place!
Do these have a dry clutch, if so, check to see if there is a drain plug on the bell housing and see what runs out of there, if oil runs out I expect the front seal on the transmission is gone. I don't have knowledge of this tractor so can't think how else oil would get into the engine.