52 Sedan Bridge
(525 Sedan Bridge)
4.7
S
ECTION
4 • B
ILGE
& U
NDERWATER
G
EAR
A. C
OOLANT
R
ECOMMENDATIONS
:
The standard mixture of water and coolant is a
mixture of 30% environmentally safe, non-toxic
antifreeze and 70% water, which protects to 0
°
F
(-18
°
C). This will allow the coolant to expand
properly and maintain normal operating engine
temperature. In colder climates, the coolant level
should be increased to 50/50, which protects to -
34
°
F (-37
°
C), for proper coverage. To find engine
coolant requirements for the specific engine on
your yacht, refer to your Engine Owner’s
Manual in the Owner’s Manual Packet.
12. O
IL
C
HANGE
S
YSTEM
The oil change system, located on the inboard port
stringer, center of the port engine, simplifies
changing the oil in the engines, transmissions and
generator. The pump is self-priming and pumps in
either direction. The oil change pump is protected
by the OIL CHANGE PUMP breaker on the DC
breaker panel on the aft bilge component board.
11. F
RESH
W
ATER
C
OOLING
S
YSTEM
The fresh water cooling system is a closed system
which helps protect engines from internal corrosion
and provides more even distribution of engine
temperature. Change the coolant annually.
Have only one (1) valve open at a time. Make sure
other valves are closed to prevent accidental
over filling.
!
CAUTION
O
IL
C
HANGE
P
UMP
(F
IG
. 4.7.1)
FLOW SWITCH
FILL/DRAIN HOSE
STARBOARD TRANSMISSION
STARBOARD ENGINE
GENERATOR
D
C
B
A
H
G
F
E
B
A
D
C
H
G
F
E
I
I
PORT ENGINE
PORT TRANSMISSION
OPEN/CLOSE VALVE
PUMP
O
IL
C
HANGE
(U
SED
O
IL
)
(F
IG
. 4.7.2)
STARBOARD
ENGINE
TRANSMISSION
PORT
ENGINE
TRANSMISSION
GENERATOR
STARBOARD
ENGINE
PORT
ENGINE
FLOW SWITCH
(DOWN)
OLD OIL
OPEN/CLOSE
VALVE
A. O
PERATING
INSTRUCTIONS
:
(S
ERVICE
ONE
(1)
ENGINE
AT
A
TIME
.)
1.
Run engines or generator for several minutes
to warm the oil and mix the sludge.
2.
Select the first unit to be serviced. Turn the valve
to the open position, in line with valve body.
3.
Turn the pump on (switch position indicates the
direction of flow) and pump the old oil into
containers to be disposed of properly.
4.
After oil has been pumped out of unit being
serviced, place the pump discharge hose into
a container of pre-measured fresh oil and
reverse the pump switch to pump the fresh oil
into the engine. NOTE: Fresh oil should be
at least 60
°
F (16 C).
O
IL
C
HANGE
P
UMP
(F
RESH
O
IL
)
(F
IG
. 4.7.3)
STARBOARD
ENGINE
TRANSMISSION
PORT
ENGINE
TRANSMISSION
GENERATOR
STARBOARD
ENGINE
PORT
ENGINE
FLOW SWITCH
(UP)
NEW OIL
OPEN/CLOSE
VALVE
