I have a 99 Disco II, and just had the headgaskett/valley/pan gasketts etc replaced. also have the valves and everything cleaned down. Now I have a problem that oil is leaking back into the coolant?????? I'm assuming it has to be in an area where the oil pressure is higher than the coolant pressure, so that leads meto the oil cooler (where it is pressurized) has anyone else had this problem????? or have any ideas?