i have a 1995 dodge avenger with a 2.0 dohc and its problem is that it smoked to much.i decide that i was going to change thevalve seals i tookevery thing a part and couldnt take the valve springs off iwas thinking of taking the headto a machine shop. and after that i dont knowthe tork of the scews on the head or the valves can eny one feed me with info.