Cub Cadet Yanmar 3TNV72 - Manual (Page 272)

TROUBLESHOOTING
T
N
V IDI Service Ma
nual
13-9
Troubleshooting Charts
Tr
ou
ble
Sympt
o
m
S
ta
rt
in
g
Pro
b
lem
In
su
ffic
ie
n
t
Engine Ou
tp
u
t
Po
or
Exh
aust
Co
lo
r
High Knoc king Sou nd Du ring Co mb ustion
Abnorm al Engine Sound
Uneven Combust ion Sound
En
gine
Surging
Excessive Engine Vibration
Difficulty in Returning to Low Speed
Excessive Fuel Consumption
En
gine
O
il
Excessive Blow-by Ga s
Engine Coo
lant
Air In
ta
k
e
Exhaust Temper atur e Rise
Co
rr
ec
tive
Ac
tio
n
Re
fe
re
nc
e
Pag
e
Engine Does Not Star t.
Eng
ine
Starts But Stops Soon.
Exha
ust
Color
Du
ri
n
g
Wo
rk
Du ring Idlin g
Durin g Work Oper ation
Excessive O il Co nsumption
Dilution by Diesel Fuel
Oil with Water
Low Oil Pres sure
Overhe at
Low Water T empera ture
Pres sure Drop
Pressure Ris e
Exhau
st
Smoke
Ordina ry
Whit e
Black
Whit e
Black
Ca
us
e
None
Little
Much
Engine Syst em - Cont inued
Reve
rse Asse
mbly of
Pist
on Rin
gs
O
O
O
O
Reas
semble Correc
tly.
See
“Reassemb
ly of
Pist
o
n
s” on
p
ag
e
6-
55.
Wor
n
Cra
n
kpin
a
nd Jou
rna
l Be
ar
ing
O
O
O
O
O
O
M
ea
su
re
a
n
d
Rep
lace.
Se
e “
Inspect
ion
of
Cra
nksh
af
t an
d
Ca
mshaf
t Com
pon
en
ts
” o
n
p
ag
e
6-
46.
Lo
os
e
Co
nn
ec
tin
g
Rod
B
o
lt
O
O
O
T
igh
te
n
to
th
e
Sp
ecif
ied
T
o
rq
ue
.
See
“”
o
n pa
ge
6-
14
.
F
o
re
ign
M
a
tt
e
r
Tr
app
ed
in
Com
bust
ion
Chamber
O
O
O
O
Disasse
mbl
e
and
Re
pair
.
S
e
e “Disassembly
of Cy
linder
Block Co
mpo
nen
ts”
o
n
pa
ge
6-
37
.
Excess
ive Gear
Back
las
h
O
Adjust Gear
Meshing.
See “
C
h
e
cking Tim
ing Ge
ar
Backlash”
o
n
pa
ge
6-
38
.
Wo
rn
In
ta
ke
/Exh
a
u
s
t Va
lve
G
u
id
e
O
O
O
M
e
as
ur
e
an
d
Re
pla
ce
.
See “
In
s
p
e
ct
ion of
Valve Gu
ides
”
on
p
a
ge
6
-2
6.
Governor Adjusted
Incorrect
ly
O
O
O
O
O
Make
Adjus
tment.
Se
e “Ch
e
ck an
d Adju
st
th
e
G
o
ver
n
o
r Lever
and
Eng
ine
Spe
e
d
Co
nt
ro
l” on
p
ag
e
5-2
7.
Im
pr
op
e
r O
p
en
/Clo
se
Tim
ing
o
f
In
tak
e
/
Exha
ust
Valve
s
O
O
OOO
O
Adjust
t
h
e
Va
lve Cle
a
rance.
See
“Mea
surin
g
an
d Adjust
ing
Va
lve Cle
ar
an
ce
” on
p
a
g
e
6
-3
4
.
TNV_
IDI_
Serv
iceM
anua
l_(3
TNV72
for
YN
only
).bo
ok
9 ペ
ージ
２０
０
７年
１
１
月２９
日 木
曜日
午後２
時５８
分