Hunter H45DS - Engine Troubleshooting

Hunter 45
DS
• En
g
ines and Transmissions
1
1.
6
Troubleshootin
g
P
roble
m
P
ossible Caus
e
Solution
E
n
gi
ne not start
i
n
g
No fuel reachin
g
en
g
in
e
I
mproper start
i
n
g
proce
d
ures
C
ontaminated
f
uel
Fuel tank vent blocked. Clean hose
and
f
ittin
g
to remove material. Make
s
ure hose is not pinche
d
Fuel line obstructed. Check fuel
lines. Make sure line is not pinche
d
C
lo
gg
ed en
g
ine
f
uel
f
ilter. Re
f
er to
e
n
g
ine manual for instructions on
c
leanin
g
f
ilte
r
Fuel suppl
y
valve closed at tank.
Op
en valv
e
R
eview startin
g
procedures in en
g
ine
m
a
n
ual
I
ns
p
ect for water or other contami-
n
ants in
f
uel. I
f
contaminated, drain
t
a
nk
a
n
d
f
l
us
h with
f
r
es
h
fue
l
En
g
ine starter not crankin
g
Dischar
g
ed batter
y
Corroded batter
y
terminals
L
oose
b
atter
y
term
i
na
l
s
B
ad
s
t
a
rt
e
r
s
wit
ch
Hy
droloc
k
J
ammed
“
starter drive.
”
R
echar
g
e or replace batter
y
C
lean batter
y
terminals
Tigh
ten connect
i
ons
Test switch continuit
y
. Replace
s
witch if required. See
y
our dealer
f
o
r
se
rvi
ce
R
eplace switc
h
See
in
s
tr
uc
ti
o
n
s
in thi
s
Sec
ti
o
n
u
n
de
r
“
H
y
dro-Lock”. See
y
our dealer imme-
diatel
y
Loosen starter motor, then
f
ree stuck
g
ear
E
n
gi
ne spee
d
errat
i
c Pinched or clo
gg
ed fuel lines
C
ontaminated
f
uel
R
ep
l
ace
li
ne or remove o
b
struct
i
o
n
S
ee
y
our dealer
f
or servic
e
D
r
a
in
fue
l t
a
nk
a
n
d
lin
es
. Fl
us
h with
c
lean fuel and replace fuel filters.
S
ee
y
our dealer
f
or servic
e
E
n
gi
ne runn
i
n
g
rou
gh
Defective fuel
p
um
p
Idle speed too low
F
au
l
t
y
ig
n
i
t
i
on s
y
stem components
C
lo
gg
ed
f
uel
f
ilter
Pin
c
h
ed
fue
l lin
es
Clo
gg
ed fuel lines
Bl
oc
k
ed
fue
l v
e
n
t
H
ave
y
our
d
ea
l
er c
h
ec
k
pump
C
heck idle speed and ad
j
ust as
needed
S
ee
y
our dealer for servic
e
C
lean or replace
f
ilter
S
trai
g
hten lines
Re
m
o
v
e
obs
tr
uc
t
ion
C
lean ven
t
E
n
gi
ne over
h
eat
i
n
g
Coolin
g
water seacock close
d
S
eacock pickup blocke
d
Collapsed water pump suction hos
e
Op
en seacock
Re
m
o
v
e
obs
tr
uc
ti
on
R
eplace hos
e
S
udden increase i
n
C
oolin
g
water intake s
y
stem blocke
d
C
lean seacock strainer
En
g
ine temperatur
e
Water intake hose leakin
g
or rup-
t
u
r
ed
R
emove material blockin
g
lin
e
Water pump
f
ailur
e
S
ee
y
our dealer
f
or servic
e