The carburetor of the 2CV is screwed onto the manifold with four M8 / SW 12 nuts. The rear nuts are easy to reach with a normal ring wrench. This is not the case with the front nuts, which can only be reached with a normal key after removing the oil filling opening. But the oil filling opening can only be loosened with a long T-key SW 11 or a ratchet with extension, apart from the tricky reinstallation.

So the two front nuts are crying out for a special tool. For this I bent a 12 mm ring wrench at right angles in a vice so that about 3 cm from the ring to the bend. Then the end of the fork is deflected and a T-handle is welded from a tube with a diameter of about 1-1.5 cm. This is an excellent way to get to the hidden notes.

I made the same of the forked fork end, because sometimes the ring wrench does not work, because some specialists have tightened the nut with a hammer and chisel, partially smashing the hexagon. It is important that only the nuts SW 12 are used, since the space for the key is already tight. If a nut SW 13 is felted on it for reasons of replacement, one feels really sad when screwing and tightening the nut.