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Home >> Volvo >> 1978 >> 264 Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Ignition System >> BOSCH Single Breaker Point Distributors >> Description >> Engine Speed Governor >> 1974-77 Models

1974-77 Models

Distributors may use a specially designed rotor which also functions as a governor. When engine speed for which rotor is calibrated is exceeded, a centrifugal weight in rotor shifts position to ground ignition circuit.