505 L4-1971cc XN (1983)
Distributor Advance Unit: Locations
Vacuum Advance Cut-Out System
Fig. 8 Deceleration fuel injection cut-out system
The distributor vacuum advance unit is subjected to manifold vacuum. When the throttle is at idle position, the micro switch closes and energizes the
twin speed relay, Fig. 8, grounding the electro valve which connects the vacuum advance circuit to the atmosphere.
