Country Clipper Jazee Pro purchased July 2013 used from dealer: I changed the hydro transmission oil and the filters. However, the spin on filters will not seat and leak once oil is filled. Removing the old filters was difficult and they were super tight. I have tighten the new filters 1/2 turn past hand tight. When oil is filled, the oil begins to run out just sitting still. I hesitate to continue addition turning. In my experience with machines, never had this problems. Any suggestions?