Hunter 50 - Engine Overview and Maintenance

Hu
nt
e
r
50
• En
g
ines and Transmissions
11.
2
The followin
g
is a list of components associated with
y
our en
gi
nes an
d
transm
i
ss
i
ons
.
En
g
ine
C
ontrols
En
g
ine Monitorin
g
En
g
ine
C
oolin
g
E
mer
g
enc
y
E
qu
i
pmen
t
En
g
ine Exhaus
t
Transmission
(
s
)
S
hifters and Controls
11.1 En
g
ine
s
The en
g
ine on
y
our boat is at the heart of
y
our boat.
P
roper attention to and maintenance o
f
y
our en
g
ine
will assure
y
ou man
y
hours of pleasurable, safe
b
oat
i
n
g
, an
d
w
ill
prevent unnecessar
y
en
gi
ne pro
b
-
lems. You must, there
f
ore, become thorou
g
hl
y
f
amil-
iar with all aspects of the en
g
ines proper operation
o
utlined in the manufacturers
Op
erator’s Manuals.
A
g
eneral maintenance pro
g
ram consists of proper lubri-
c
ation, cleanin
g
of fuel filters, fuel lines, and air filters.
•
•
•
•
•
•
•
•
CAUTION
! !
T
ake proper care when washin
g
down, or clean-
i
n
g
y
our en
gi
nes, t
h
at water
d
oes not enter t
h
e a
ir
i
ntakes. Water in the air intakes ma
y
g
o directl
y
to
the c
y
linders, resultin
g
in rust and possibl
y
internal
e
n
gi
ne
d
ama
g
e.
Fi
g
. 11.1 shows
y
ou drive and components aboard
y
our
boa
t.
We stron
g
l
y
ur
g
e
y
ou to compl
y
with the manual pro-
vided b
y
the en
g
ine manufacturer. Follow the recom-
mended maintenance and warrant
y
schedule in the
o
wner’s packet. En
g
ine abuse or improper maintenance
ma
y
adversel
y
affect the claims made under the inde-
pendent warrant
y
provided b
y
the en
g
ine manu
f
acturer.
Th
e en
gi
ne manua
l
states t
h
e max
i
mum
RPM
rat
i
n
g
e
stablished b
y
the en
g
ine manu
f
acturer
f
or
y
our boat’s
e
n
g
ines. Do not exceed this ratin
g
.
C
heck the manual
f
o
r
o
th
e
r inf
o
rm
a
ti
o
n
abou
t m
a
xim
u
m RPM’
s
.
E
n
g
ines are selected and desi
g
ned to meet or exceed
industr
y
standards set b
y
marine en
g
ine manufacturers.
HOSES TO
WATER HTR.
ENGINE
ENGINE
MUFFLER
MUFFLER
HULL BOTTOM
SYSTEMS SCHEMATIC FOR STERN DRIVE ENGINE
ENGINE
ELECTRICAL
SYSTEM
WATER INTAKE
EXHAUST
FUEL SYSTEM
FEED
RETURN
TANK
FILTER
VALVE @ TANK
RUNNING GEAR
SHAFT
COUPLING
DRIPLESS
THRU-HULL
SEA COCK
STRAINER
ELBOW
HOSE
MUFFLER
CONTROLS
SHIFT
THROTTLE
PANEL HARNESS
BATT SW
STARTING BATTERY
HOUSE BATTERY
OPT. INVERTER
12V SYSTEM
110V SYSTEM
SHORE POWER
STARTING SYSTEM
HOUSE SYSTEM
FUEL FEED & FILTER
STUFFING BOX/SHAFT
RAW WATER FEED
COMPARTMENT ENCLOSURE
COOLANT
RESV.
BATTERY
BATT. SWITCH
DC
PANEL
COOLANT
RESV.
A.C.
PANEL
SHORE PWR
TO
APPLIANCES
OPT.
BATT. CHGR.
INV.PANEL
HOSES TO
WAT.HTR.
ENGINE ENCLOSURE
RAW WTR.FEED W/STRAINER
FUEL RETURN
FUEL FEED W/FILTER
SHIFT CABLE
THROTTLE CABLE
ENGINE STOP CABLE
INSTUMT. PANEL WIRE HARNESS
CONTROL
CABLES TO
PEDESTAL
TO
FUEL
TANK
SEE ELEVATION BELOW FOR CABLES TO PEDESTAL
SEE PLAN ABOVE FOR PROP SHAFT & STUFFING BOX
NOTE: THIS DWG. IS GENERIC SCHEMATIC FORM
HEAT EXCHANGE
BLEEDER VALVE
BATTERY
(FLEX SHUT OFF)
/ INVTR.
RETURN FUEL LINE
PLAN
ELEVATION
Fi
g
. 11.
1