Zinc Anodes (Mercruiser And Volvo) - Chris-Craft 32 Launch (RJ) Owner's Manual

Zinc Anodes
The DC system must be grounded in order to function properly. The RJ/RK use a cathodic bond system
to connect all underwater components and through-hull fittings. A sacrificial zinc plate is mounted on the
bottom of the engine bracket helps protect these fittings from corrosion. This plate should be inspected
and replaced at regular maintenance intervals to ensure corrosion protection. In addition there are zinc
anodes on the bottom of the outboard drives which should be inspected regularly and replaced when
necessary.
Check your Engine Manuals for exact location of all anodes.
Not all zinc anodes on the Drives are shown here.
Mercruiser
Figure 3-119.
Mercury Zinc Anodes
Check your
Volvo
Engine Manual
for
exact location
of all anodes.
Volvo
Figure 3-121.
Volvo Zinc Anodes
3-60
Systems
NOTICE
NOTE: This zinc transom zinc will be used on boats
that have a generator or an air-conditioning option.
The Pro-Safe FS Galvanic
Isolator will interrupt galvanic
current flow with other boats
at a marina when installed on
a boat which is connected
to an Alternating Current
Shore Power.
CAUTION
Figure 3-122
Volvo Zinc Anodes
Figure 3-118.
Figure 3-120.
The trim tab also serves as an anode to protect
the engine from electrochemical corrosion.
Never paint the trim tab as it will become
ineffective as an anode.
Figure 3-123
Trim Tabs with Zinc Anode
Transom Zinc
Galvanic Isolator
ZINC
ANODE
3-60