Marine Power 4.3 VORTEC MPI User Manual

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9. Winterization
Half Closed Cooled Engines
Test antifreeze-water concentration to assure adequate
protection for your location.
Remove hoses from inlet and outlet of crankshaft
seawater pump.
Remove drain plug from transmission/engine oil cooler.
Remove drain plug from exhaust manifolds. Note:
Engines equipped with heat exchangers mounted
underneath the starboard exhaust manifold do not
require the removal of the manifold drain as it will drain
once the heat exchanger end cap is removed.
Note the routing of your inlet cooling water hose to
make sure there are no locations which may trap water.
If your engine is attached to a v-drive transmission, pay
particular attention to the draining of the v-drive cooler.
Remove end cap on heat exchanger. Inspect for debris
and trapped water. Remove zinc anode and replace if
necessary.
Spray each of your engine mounts with WD-40 or
equivalent lubricate.
LS3 Half System Cooling Diagram
Remove End Cap From
Heat Exchanger

Marine Power 4.3 VORTEC MPI Specifications

General

Brand	Marine Power
Model	4.3 VORTEC MPI
Category	Engine
Language	English