(2)
Air trapped in the fuel system
(3
) Delivery pump fails
in
delivering
fuel
or
delivers brokienly
(4 ) Injector sprays abnormally
1.
2 insufficient compress pressure
( 1) Piston ring and cylinder liner
wear
(2)
Piston ring gumming
(3)
Valve leaks
(4 ) Temperature is
low
after end
of
compression
1.
3 Trouble
in
electric devices
( 1)
Battery is insufficient
(2) Connecting
of
electric devices
is
not
good
(3
) Starting motor on rotate or rotates in-
sufficiently
(4) Clutch
of starting motor skids
(5)
Gear of starting motor
cnt't
inlay the
flywheel gear - rim
2.
Unsteady running
of
the engine
Trouble cause and its feature
( 1) Fault
in
fuel system
(2)Too
much
water
in fuel
,( 3) Leakage in fuel passage
(2)
Vent the air
from
the
system
withe
the fuel delivery
pump,
check
whether
t-
her
is
leakage of fuel
and
air
in
the fuel
pipes
(3
) Check and repair
(4 ) Check and adjust or replace the nea-
die valve mate
1.2
( 1) Check and replace
worn
parts
(2)
clear
off
gumming
(
3)
Vava spring broken or elasticity
weakens, valve lash
is, incorrect, valve
seal
is
not
good,
eliminate the ault
( 4 ) Environmental temperature is
low,
use
preheat starting method
1.3
( 1) Recharging the battery
to
the
speci~
fied point
(2) Check the tighten
of
the·
connection
( 3) Check the starting motor
(4 ) Check and repair the clutch
of
the
starting
motor
(5)
Find out the fault and eliminate
it
Remedy
( 1) Handle according
to
the
(1)
t ( 2 )
( 3 ) , (4 )
in
the
1.
1
(
2)
check the dampness in
th~
fuel
(3
) Check and eliminate the fault
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