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Freshwater System
Be sure to check the freshwater coolant (antifreeze)
level before beginning each trip. If coolant is not
between the MIN and MAX lines
B
in the reservoir, top
up the level by removing the coolant filler cap
A
and
adding coolant via the fill spout. Do not fill above the
MAX fill line when topping up.
WARNING!
Do not open the coolant filler cap when the engine is
warm. Steam or hot fluid could spray out, causing
severe burns.
If it becomes necessary to top up the coolant regularly,
inspect the cooling system for leaks. If leaks are
detected, please contact an authorized Volvo Penta
dealer at your earliest convenience.
WARNING!
If opening the filler cap or drain/venting cock, or remov-
ing a plug or engine coolant line from a hot engine,
open the filler cap slowly and release coolant system
pressure gradually; otherwise, steam or hot coolant
can spray out. Note that the coolant may still be hot
and can cause burns.
This engine uses
Volvo Penta “VCS” coolant only
(yellow color).
Do not use other coolant types
, mixing other cool-
ants may damage the cooling system.
Sacrificial Anode
These engines have a sacrificial anode
A
located in
the heat exchanger, as shown in the illustration.
Anodes are slowly eroded away by galvanic action and
require inspection. Additionally, anodes that are sub-
jected to frequent wetting and drying require periodic
scraping with sandpaper to remove scale and oxida-
tion to maintain their effectiveness.
When you need to purchase new anodes, see your
Volvo Penta dealer. The material composition of Volvo
Penta anodes meets U.S. Military Specification 18001-
H. Some aftermarket anodes may not meet mil-specs.
Inspecting Heat Exchanger Anodes
The anode
A
resembles a bolt and may be removed
and replaced using a 3/4 inch (19mm) wrench. If the
anode is more than 30% eroded, it should be replaced.
When installing, tighten the anode all the way by hand,
then turn an additional quarter turn using a wrench.
MIN
MAX
A
B
P0015653
A
P0015645
Maintenance
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