Broken Piece Mercedes 1938

The thing is difficult, the only thing I can tell you is that you buy the greatest magnet they sell (10,000 gauss or more) and you hit it in the oil carter.
Do not scare yourself so much I have disarmed engines that have been as a salad of ground bolts and if they had not disarmed, the dotation would have gone unnoticed.
What do you move with that mention?