I start up my 360 and after about 5 minutes or so, oil starts leaking. I thought my oil pan or pump was leaking but it appears the oil is traveling forward from the timing cover and then dropping down onto the front of the pan. There is an oil slinger behind the timing cover and a crank seal between the damper and the cover. Anyone ever replace one of these? Can it be replaced without removing the timing cover and only the damper? Have any advice?