I recently bought a 2002 4.6l 2v SOHC motor and had a mechanic helping me but half way through he bailed and now i have two SOHC torn apart in my garage and don't know how to put the cams back in. The mechanic told me he knew what he was doing but i quickly learned otherwise when i saw he didn't mark the timing chain or use a cam retainer when pulling them apart. Does anyone know how to put the cam back in so i don't mess up the timing? is there a special way in needs to be before i can bolt the heads back on the block? any help would be awesome!