2. Release the distributor cap clamps and remove the cap. Remove the runner from the center cam.
3. Ducellier distributor. Unscrew the adjusting nut (1) (see B/Figure 4.3). Unscrew 2 screws (2) and remove the adjusting pin (3) together with its spring. Remove the plastic plug (4) and low-voltage wire from the slot on the distributor housing and, using a small screwdriver, release the adjacent locking tab (5). Loosen the mounting screw (6) and pull out the fixed contact. Carefully remove the spring clip (7) and remove the moving contact.
4. Paris-Rhone distributor. Unscrew the mounting screw (4) (see B/Figure 4.4). Move the spring clip (5) up and remove the contact breaker.
5. All models. Sand the contact surfaces with sandpaper or a special file to remove all pitting and unevenness. With frequent treatment of the contact surfaces, the tungsten layer will wear down to the base, after which the contacts will have to be replaced.
6. Installation of the breaker contacts is carried out in reverse order. Please note the following points:
- a. Before installation, even new contacts must be wiped with methyl alcohol.
- b. Apply a small amount of Vaseline to the rotating axis of the movable contact contour of the cam.
- c. When installing the adjustable contact (1) on the Paris-Rhone distributor (see B/Figure 4.4) check that it is centered relative to its holder (2).
- g. Make sure to install all washers in their original sequence. If necessary, you can mark the position of the washers during disassembly to avoid mistakes.
- d. Adjust the gap between the breaker contacts (see section 2) and check the angle of the closed state of the contacts (see section 3).