18 months ago. Overheating, loss of coolant mainly as exhaust vapour, smell of coolant, top hose blown up so obviously suspected head gasket. Head removed, skimmed, pressure tested. Refitted with genuine gaskets and new head studs. Fine until 6 months ago when started needing coolant. Not overheating, not pressurising, not blowing up top hose or smelling of coolant. Now found coolant in oil. Is there anywhere for water to get into oil other than head gasket. Don't think it has a water type oil cooler???? Is there any where that goes porous ie like the perkins timing case. Any ideas?? Tia