e.. .
TROUBLESHOOTING “12-l
1
INSUFFICIENT POWER
Checkpoint
Trouble Cause
Remedy
Continued from the previous page
OK
I
I
.
Injection pump
NG
Worn roller tappet
NG
Replace the roller tappet
OK
t
.
1
c
Turbocharger
NG Exhaust gas leakage from the
1 exhaust system
NG
Repair or replace the related
Air leakage from the intake system
parts
&
,
.
NG
Defective turbocharger assembly
NG
Replace the turbocharger assembly
. -
OK
Compression pressure
OK
Blown out cylinder head gasket
t
?
Worn cylinder liner
NG
Piston ring sticking or broken
NG
improper seating between the
Replace the related parts
valve and the valve seat
,
I
a
,
t
L
\
. . -
Valve clearance
NG
Valve clearance improperly
adjusted
NG
Adjust the valve clearance
c
1
1
OK 1
t
r
Valve spring
NG
- Valve spring weak or broken
NG
1
Replace the valve spring
OK
I
1
Exhaust system
NG
Exhaust pipe clogged
NG
Clean the exhaust pipe
I
J
OK 1
,-
‘1
I
Full
load
adjusting screw seal
NG
Open and improperly set NG
Adjust and reseal the adjusting
I
adjusting screw seal
screw
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