How do u fit a cossie 4x4 turbo to the manifold of a escort rst as you can get 3 of the nuts on but the one near the metal water pipe will not go on as there is no space as it hits the metal water pipe.had to grind a little of side of manifold to get water pipe on so its a bit tight.will it be ok to just use 3 of nuts holding it on i no its not best to but dont no what else to do