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Mercury MerCruiser 8.1S - Engine Connections

Mercury MerCruiser 8.1S
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GASOLINE ENGINE 8.1 S INBOARD MODELS
Page 34 of 58
Engine Connections
Seawater Pickup Pump Connection
1. Remove shipping cap and connect seawater inlet hose to the upper fitting.
77512
a
a-Seawater Inlet Hose Attached To Upper Fitting
Fuel Supply Connection
A flexible fuel line must be used to connect fuel line to engine to absorb deflection when
engine is running.
1. Remove shipping plug.
2. Connect fuel line to the fuel boost pump.
77629
a
b
c
a-Water Separating Fuel Filter
b-Fuel Boost Pump
c-Fuel Pump (Hidden)

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