Just purchased 92 prelude si , oil leaks were abundant ive replaced valve cover gasket , grommets . oil dipstick o ring , oil pan and gasket , mechanic put a clutch in a few months ago before i bought it , i guess he didnt change the rear main oil seal , i have oil blowing all over my exhaust , are preludes known for so many oil leaks and how difficult is it to change this seal , does the motor have to be dropped from below ? how much clearance will i need to get to it? also anyone experience rattling from front end while going over any bumps in road , ive been told that the front end steering has many weak components , any advice is helpfull, thanks