I've noticed since removing my under engine tray that I have a oil leak. As it seemed quite messy both on the tray and lower engine area I have cleaned all oil traces from the engine. From what j can see the only trace seems to be coming from the front end of the engine and dripping from some thin plastic pipes mounted infront of the cambelt cover. This leak is not heavy az after a long run I parked the car in the garage and placed a peice of card underneath only to find in the morning that there were two small drop spots , probably two or three drops on each spot. The trouble Is these engines are so covered in parts it's hard to identify where it's coming from. Do I leave the under engine cover off and see if it's apparent after a few drives or refit cover and forget?