Hey all, one of my jeeps has come back to me(room mate bought it so i can finish my TJ!) Plastic valve cover will NOT stop leaking oil, I have tried gasgets and gasget material and gasget in a tube(laymans terms) but cant cure this stupid thing. 90 YJ 2.5l. Thought was too hot all the time but isnt.....stumped. Tried to use search function here and internet but not much luck. Can i get a metel one? Thx!