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ELECTRONIC IGNITION SYSTEMS

Fig. 1: View of the air gap measurement on electronic distributors

Fig. 2: Exploded view of the 1979 electronic distributor

Fig. 3: Exploded view of the 1980–84 electronic distributor

Fig. 4: Exploded view of the 1986 electronic distributor

Fig. 5: Before removing the distributor cap, label the spark plug wires in relation to their position and cylinder number

Fig. 6: Loosen the distributor cap hold-down screws . . .

Fig. 7: . . . and then pull the distributor cap off, taking care not to upset the firing order — if a new cap is being installed, remove and replace the ignition wires one at a time to avoid confusion

Fig. 8: Once the cap is removed, loosen the rotor retaining screws . . .

Fig. 9: . . . and remove the rotor from the distributor shaft — inspect the rotor and distributor cap contacts for pitting, burning & wear; replace as necessary

Used for the first time on the 1979 models, this system replaces the points and condenser in the distributor. It is almost maintenance free. The most commonly replaced parts are the rotor and cap, which are still routine maintenance items. Other items, such as the pick-up coil and signal rotor, are replaced when they fail. An air gap adjustment is possible only on the 1979 models. Adjustments are not possible on later models.

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