Characteristics of automatic ignition advance:
A - characteristic of the centrifugal regulator;
B - characteristic of the vacuum regulator. When checking the ignition distribution sensor removed from the vehicle at the stand, reduce the values indicated on the graph by half. When checking on a car, add to the indicated values the value of the initial ignition timing
Ignition distributor
- Brand and catalog Mg: Bosch 0 237 021 006.
- The initial ignition timing to TDC at a crankshaft speed of 950 rpm and a hose disconnected from the vacuum ignition timing controller: 10°.
Ignition coil
- Brand and catalog number: Bosch 0 221 122 022.
- Primary winding resistance, Ohm: 0.52-0.76.
- Resistance of the secondary winding, kOhm: 3 + 0.5.
Switch
- Brand and catalog number: Bosch 0 227 100 104.
Spark plug
- Brand: Bosch W7 D or DC, Beru 14-7D or DU, Champion N 8 Y or N 7 YC.
- Gap between electrodes, mm: 0.6-0.8.
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