Engine Corrosion Protection Components; Removal - Mercury TDI 3.0L Owner's Operation And Maintenance Manual

Section 4 - Maintenance
c
Bravo sterndrive shown
a - Sterndrive
b - Ground washer
c - Ground plate (later model)

Engine Corrosion Protection Components

The engine is equipped with a sacrificial anode located on the intercooler end cover to assist in protecting the engine and the
seawater cooling system from corrosion.

Removal

1. Allow the engine to cool.
Failure to close the seawater inlet or seacock when removing or replacing the anode plugs can lead to water damage. Close
the seacock or remove and plug the seawater inlet hose to prevent water from entering the anode plug holes.
2. With the engine off, close the seacock, if equipped, or remove and plug the seawater inlet hose.
3.
Drain the seawater system. Refer to Flushing and Draining the Seawater System.
Page 66
a
b
37513
a
Ground washer shown inside anode cavity
of Bravo Three gear housing, other models
b
a - U‑joint bellows ground clip
b - Exhaust bellows ground clip
59936
NOTICE
37632
similar
90-8M0145546 MAY 2018
eng