DIESEL ENGINE
05
SERIES
WSM,
01640
Fuel Tightness
of
Delivery Valve
1,
Remove the injection pipes and glow plugs.
2, Set a pressure tester to the fuel injection pump.
3.
Turn the flywheel and raise the pressure to approx.
14.7
MPa
(150
kgf/cm2,
2133
psi).
4.
Now turn the flywheel back about half a turn (to keep the plunger
free). Maintain the flywheel at this position and clock the time
taken for the pressure to drop from
14.7
to
13.7
MPa (from
150
to
140
kgf/cm2, from
21
33
to
1990
psi).
5.
Measure the time needed to decrease the pressure from
14.7
to
13.7
MPa (from
150
to 140 kgf/cm2, from
21
33
to
1990
psi).
6.
If
the measurement is less than allowable limit, replace the
delivery valve.
NOTE
0
Apply a liquid gasket (Three Bond
1215
or equivalent)
to
both sides of
the
solenoid cover gasket.
11900S10311
[2]
INJECTION
NOZZLE
A
CAUTION
Check the lnjectlon pressure and condition after confirming that there
is
nobody standing
in
the
direction
the
fume goes.
If
the fume from the nozzle directly contacts the human body, cells may be destroyed and blood
poisoning may be caused.
11790S10690
I00000F10690
I
I
0164QFl05OO
I
Nozzle Injection Pressure
1.
Set
the
injection nozzle
to
the nozzle tester.
2.
Slowly
move the tester handle to measure the pressure at which
fuel begins jetting
out
from the nozzle.
3.
If
the
measurement
Is
not within the factory specifications,
disassemble the injecetion nozzle, and change adjusting washer
(1)
until the proper injection pressure
is
obtained.
(Reference)
0
Pressure variation
with
0.025
mm
(0,001
in.) difference
of
adjusting washer thickness.
Approx.
59 kPa
(6
kgf/cm2,
85
psi)
(1)
Adjusting
Washer
OOOOOS70512
S-I55
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