Hey guys im around the northern subbarbs i generally joined so i can get some help from other Subaru owners as ive just purchased a 2004 subaru liberty sedan2.5l sohc non turbo ive drove about 6ks on it since i bought it, the other day i was driving home and i noticed a knocking noise coming from the engine.. so i instantly got home and did research bout it bla bla and now im in a position where i cant decide.. whats the better option to Fix watever is making the noise but might be a big fix or shuld i buy a new engine?anyone know what the problem is ive read that its common with boxer engines? its done about 156ks