I have a problem that maybe a vw guru can help me with. I have a 85 gti with an oil cooler with an extra hose coming out of it. When I bought the car it was pluged the car ran with no problems till the motor passed on to the vw gods. Bad rings. Now i have a newer motor same set up but I am building enough oil pressure for it to blow the hoses off the top of the valve cover. So I took the plug out an ran it with out the plug in my garage no problems. IS there a vent or a filter I should have there ( near oil cooler) if so where do you get one? So if anybody could shed some light on the subject that would help.