mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Barometric Pressure Switch|Description and Operation|Page 539 > < Heater/Air Conditioner - Foreign Objects Enter Plenum|Page 535
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Barometric Pressure Switch: Description and Operation

Ignition barometric pressure switch. 1983

    At low altitudes, this switch, Fig. 16, signals the ignition module to retard spark timing. Calibration resistors inside the switch control the amount of
retard.

Barometric Pressure Switch|Description and Operation|Page 539 > < Heater/Air Conditioner - Foreign Objects Enter Plenum|Page 535