Check Rear Oil Pump Discharge Flow Volume; Check - Mitsubishi 3000GT 1994 Workshop Manual

4-WHEEL STEERING SYSTEM (4WS)
-
service Adiustment
Procedures 378-5
Fluid level difference
within
Smm (0.20
in.)
While
engine
While engine is
rs
runnrng stopped
13U01
('12)Ensure
that the difference in the fluid levels when
the
engine is running and when
it is stopped are within 5 mm
(0.20
in.).
lf the difference exceeds 5 mm (0.20 in.), there is still air
in
the system and it must be bled
again.
Caution
lf air has not been completely bled from the system,
the
pump will
make a humming sound or an unusual noise
will
come
from the
flow
control valve;
this
also
contributes
to
shortened pump
life.
FUNCTION CHEGK
Raise
the vehicle so that all four wheels may turn
freely.
Start the engine, running the vehicle at an indicated speed
of
about
80
km/h (50
mph).
Turn the steering
wheel
all
the way to left and right and turn
it swiftly,
checking
to
ensure that the rear wheels steer to
the same directions as
the front
wheels.
REAR
OIL PUMP
DISCHARGE
FLOW
VOLUME
CHECK
estFs^c
(1)
Disconnect
the pressure
hose
from the rear
oil pump
and
install
the special tool
with a
rubber
hose.
(2)
Place
the other end of the rubber hose
in
a
container which
permits measurement of
flow
rate [2-dm3 (2.1 U'S.qts., 1.8
I
mp.qts.) graduated cYlinder.l
(3) Start
the engine. Increase speed slowly,
then hold
the
indicated speed of 50 km/h (31 mph), measuring discharge
flow
volume
for 30
seconds.
Caution
While performing this work, continuously
add
fluid into
the oil
reservoir.
Standard
value: Approximately 1.0 dm3 (1.06
q$.,
0.88lamp.qt.l
(4) lf the
discharge
flow volume is extremely
high or
low, the
rear
oil
pump should be
replaced.
(1)
l2l
(3)
Rubber
hose
Graduated cvlinder
13F001
1
@
Mitsubishl Motols
Corporation
May 1992
PWUEgl19