How many miles do you have on it? I took my contour into the dealership and they put washers inbetween the cover and the engine to give it seperation, cheap but it worked. But make sure the timing belt doesnt need replacing first.
'95 Contour GL, zetec mtx, drop in K&N, exhaust res removed, 4 10" Kenwoods powered by 1000W Visonik amp, 4 5"x7"/6"x8" Visoniks