b6200 kubota puking oil out of breather plug ?

[b7200hsd]

welp , friend of mine has a b6200 kubota that we just fixed the control valve on( replaced the relief valve assembly) now its puking oil after its ran for a few minutes. the oil comes out of the breather tube. anyone have any suggestions?

 

[J_J]

If the fluid was at the correct level before you started, then I think you are sucking in air and that combination increases the volume and the excess fluid flows out the vent or fill cap.

 

[b7200hsd]

yes the fluid level is correct, guess i wasnt thinking hard enough about this , realize now im having a cavitation problem , ive probably got a blown oring on the control valve or an air leak therabouts . thanks for your input.