Chapter
11
Troubleshooting
_1._T_ro_u_b_le_s_h_o_o_tin....;g;;....
________________________
3.4JH3(B)(C)E
I
Chart
5
TROUBLE
AND
TROUBLESHOOTING
I
I
ROTATION
IS
NOT
SMOOTH
~
{ 1 -1) Lap.
(II-1)Clean.
(
IJ
-7) Bleed
air
and
prime.
~
( I -2) Replace.
( II -2) Replace. ( II -8) Adjust.
"'
( II -3) Replace. ( II -9) Adjust.
<I>
E
( II -4) Correctly install
pump.
CD
C:
( II -5)
Clean.
:::,
(
11-6)
Replace.
0
c..)
.........
.......
I
( l I
Faulty
operation
of
injection
valve
I
I
( n J
Uneven
supply
of
fuel
oil
injected
l
11)
lmped,ment
to
valve
needle
movemen
\
{1) Faulty operation ol lwei
pump
plunger
\
\
{5) Clogging al fuel filter
\
12)
Damaged
luel
pump
plunger
\
\
(61
Dama.gad fuel cam
u
(2) Damaged valve spring
{3)
Damaged
plunger
spr;ng
\
(7)
Au
1n
fuel
111:iecl~on
system
~
\
(4) lnacct.uate assembly
o!
fuel miectran purnp \
(S)
F~ulty operahon °
1
adiushneni rack
w
\
~
(9)
Uneven
amount
of
fuel
lo
cyl1.ndets
""O
\
..
I
ROTATION
IS
NOT
C
Cl}
(]}
I
/
Cl)
/ ( 1 )
Overloading
:::J
( 1 J
Damaged
governor
bearing
7(3/
Shcking
or
governor
sleeve
{1J
1------
CJ
/
(2) Fauity oporat1on al
goverrinr
1111K
/ (2)
Seizure
or
mav1n.g
parts
1-
/(dl
Fa1,11ty
aperat1nn
ol
fuel oll ad1us1msn1
I
/ (3)
Clutch
Sl,ppago
I
/---·
I
(m)
Faulty
operation
of
governor
I I
(WJ
Miscellaneous
I
.....
,,..
!:"
(111-1)
Replace.
( IV-1) Reduce load.
:::,
"'
(111-2)
Adjust.
( IV-2) Disassemble, check
and
repair
"'
CD
E
( Ill -3) Clean.
( IV-3)
Check
and
adiust.
2
C:
( Ill -4) Disassemble, wash and repair.
:::>
u
c..)
TROUBLE
AND
TROUBLESHOOTING
I I
a,
( I -1) Increase injection pressure.
(
ll
-1) Delay injection 1iming.
5
"'
I I -2) Replace.
( II -2) Adjust
standard
injection pressure.
"'
CD
( I -3)
Disassemble
and
lap.
§
~
( I
-4)
Disassemble
and
repair.
:::>
0
c..)
........
.....
I
( I )
Faulty
fuel
injection
valve
I I
( n)
Faulty
fuel
injeclion
I
11)
low
in1ect1on
pressure
\
\
( 1 [
Early
fu.el Ln1ecticn
(3)
S11ck1ng
01
valve
needle
\\
(2)
Damaged
luei
val\le
sp{ing
\-
\
\
(2)
Fu~I pressurn
1s
tao
ru-g11
u
(4) Fau~y mfectlon spray
\
2
\
I
w
..
""O
I
/
...
C
Cl}
(]}
\
1)
E i:cessive
quantity
ol
fuel
is
eiectad
\
1)
lnsu
lhcienl
cooh-r,g
waier
Cl)
1rom fuel
pump
I
(4}
Poor
quality
tue1
oil
:::J
m
(.)
I
(2) Excess pfston
dearar.ce
I
!
(fil)
Excessive
quantity
of
fuel
injected
each
time
......
~
(1111) AdIust
pump
adjustment
rack.
:::,
"'
"'
CD
E
~
:::,
0
(_)
Printed
in
Japan
HINSIII-IHI009
I
/
(5)
Water
rrrn:c,d
111
tuel
011
(3) Excess beanng clearan.ce
I
16)
lnc.orroc1
prossuw
I
(WI
Miscellaneous
I
.........
(
IV
-1)
Check
cooling
water
pump
and
lap valves.
(IV-2) Replace.
( IV-3) Replace.
(
IV
-4) Replace with
good
fuel oil.
(
rv
-5) Replace with
good
fuel oil.
(
rv
-6)
Check
and
repair.
11-3
,..
I
SMOOTH
I
Chart
KNOCKING
KNOCKING
l
I
6
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