MerCruiser 5.7 MPI User Manual

Section 5 - Maintenance
Page 70 90-864197072 NOVEMBER 2007
NOTICE
Disconnecting the seawater inlet hose will cause water to enter the bilge resulting in
engine damage. Close the seacock before disconnecting the seawater inlet hose. Plug
the seawater inlet hose immediately after disconnecting it.
b. If not equipped with a seacock, disconnect the seawater inlet hose from the
transmission seawater inlet fitting and immediately plug the seawater inlet hose
to prevent water from siphoning into the engine or boat.
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c. Using suitable adapter, connect the flushing water hose to the transmission
seawater inlet fitting.
d. Proceed to step 3
2.
All other models:
a. Close the seacock, if equipped, and then disconnect the seawater inlet hose from
the seawater pump inlet fitting.
NOTICE
Disconnecting the seawater inlet hose will cause water to enter the bilge resulting in
engine damage. Close the seacock before disconnecting the seawater inlet hose. Plug
the seawater inlet hose immediately after disconnecting it.
b. If not equipped with a seacock, disconnect the seawater inlet hose from the
seawater pump inlet fitting and immediately plug the seawater inlet hose to prevent
water from siphoning into the engine or boat.
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c. Using a suitable adapter, connect the flushing hose from the water source to the
water inlet of the seawater pump.
d. Proceed to step 3.

MerCruiser 5.7 MPI Specifications

General

Engine Type	V8
Fuel System	Multi-Port Fuel Injection (MPI)
Horsepower	300 HP
Ignition	Electronic
Cylinders	8
Fuel Type	Gasoline
Alternator	65 amp
Compression Ratio	9.4:1
Fuel Requirement	87 octane (minimum)
Displacement	5.7L (350 cu in)
Max RPM	5000 RPM