mercury Workshop Repair Guides

Mercury Workshop Service and Repair Manuals

Fuel Pressure Regulator|Locations|Page 2106 > < Fuel Pressure Regulator|Locations
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Fuel Pressure Regulator: Description and Operation

Fuel Pressure Regulator

PURPOSE

Regulates fuel pressure supplied to injectors.

LOCATION

Bolted to fuel rail downstream of injectors.

OPERATION

Pressure is controlled by a spring applied to a diaphragm. By exposing the top side of the diaphragm to manifold vacuum, constant fuel pressure is
maintained at all injectors. Fuel in excess of immediate requirements passes through the regulator and flows back to the tank.

Fuel Pressure Regulator|Locations|Page 2106 > < Fuel Pressure Regulator|Locations