DS 19 OPERATION No. DS 211-0 : Ignition adjustments. Op. DS 211-0 133
TOOLS
6 Untighten the screw fixing the distributor. Find the point at which the contact breaker points open, at this exact
moment the lamp should light. Tighten the fixing screw . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 mm spanner
NOTE - This operation is made easier by removing the coil and bracket assembly.
(Let the assembly rest on the suspension sphere).
7 Switch off the ignition, remove the test lamp.
IMPORTANT - Remove the locating pin. Move the auxiliary clutch control lever in the original disengaged position.
ADJUSTMENT OF THE CONTACT BREAKER (with two breakers).
To adjust the synchronisation of the breaker (bench test).
8 Make sure that the contact points are in good condition. Adjust the gap to 0.4 mm. Use a set of very clean feeler
gauges, so that no trace of grease is deposited on the contact points.
9 Mount the contact breaker on a bench tester comprising a graduated scale and a pointer..
Connect a 6 volt test lamp between the positive terminal of a battery and one of the breakers. The negative
terminal of the battery connected to the earth of the bench tester.
10 Turn the contact breaker by its drive in a clockwise direction until the lamp lights, then continue turning until
the moment that the light goes out. Turn the graduated scale to bring zero on the scale in line with the
pointer.
11 Connect the test lamp on the second breaker and turn the drive in the same direction as before, never turn
backwards. Note the angle indicated by the pointer at the moment the light goes out. This angle should be
between 89˚ and 91˚
12 If the angle is less than 89
0
,proceed as follows
a) Reduce the contact gap of the breaker which is connected to the test lamp. Do not reduce the gap below 0.3 mm.
b) If necessary, increase the contact gap of the other breaker. Do not exceed 0.5 mm.
c) If these operations are insufficient, replace the cam.
13 If the angle is greater than 91˚, proceed as follows
a) Increase the contact gap of the breaker which is connected to the test lamp. Do not exceed 0.5 mm.
b) Reduce the contact gap of the other breaker. Do not reduce the gap below 0.3 mm.
c) If the operations are insufficient, replace the cam.
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