1998 MITSUBISHI LANCER EVOLUTION IV air bleeding

ENGINE – Engine Adjustments11-6
(3) If the noise is not eliminated by racing, follow these steps
to check the lash adjuster.
a. Stop the engine.
b. Bring no. 1 cylinder to TDC on the compression stroke.
c. Push the rocker arms indicated by arrow A on the
left to see if they go down.
d. Slowly turn the crankshaft clockwise 360
.
e. Perform the same step as step c for rocker arms
indicated by arrow B.
f. Push the part of the rocker arm which contacts the
top of the lash adjuster. If the rocker arm can be
easily moved down to the bottom, the lash adjuster
is defective, requiring replacement.
When the lash adjuster is replaced, be sure first to
bleed the lash adjuster of air before installation. Then,
perform steps a through e to ensure that no abnormal
symptoms are noted.
NOTE
(1) The leak-down test is an effective means to
accurately determine if the lash adjuster is
operational or not.
(2) For the leak-down test and bleeding procedures,
refer to ENGINE WORKSHOP MANUAL.
If the rocker arm is felt binding and cannot be
pushed downward as you push it, the lash adjuster
is operational. Check for other possible causes
for the noise.
(4) Lash adjuster replacement
Caution
From the cylinder from which the lash adjuster is
to be removed, turn the crankshaft to lower the piston,
as the valve contacts the piston when pushed down.
A rocker arm cannot be removed if it is lifted by the
cam. If this is the case, turn the crankshaft so that
the arm is not lifted.
a. Using the special tool, push the valve downward to
remove the roller rocker arm.
b. Remove the lash adjuster from the cylinder head.
c. Mount a brandnew lash adjuster which has been bled
of air in the cylinder head.
d. Using the special tool, lower the valve and install
the roller rocker arm.
NOTE
To mount the roller rocker arm, first place the pivot
side of the rocker arm on the lash adjuster, then push
down the valve; next, place the slipper side of the
rocker arm on the valve system side.Timing belt side
ABABAA B B
MD998782
MD998782

CLUTCH – On-vehicle Service21-3
(4) Measure the clutch pedal play.
Standard value (B): 1 – 3 mm
(5) If the clutch pedal play is not within the standard value,
loosen the setting nut and move the push rod to adjust.
Caution
Do not push in the master cylinder push rod at this
time.
(6) After completing the adjustments, confirm that the clutch
pedal free play (measured at the face of the pedal pad)
and the distance between the clutch pedal (the face of
the pedal pad) and the toeboard when the clutch is
disengaged are within the standard value ranges.
Standard value (C): 6 – 13 mm
Standard value (D): 70 mm or more
(7) If the clutch pedal free play and the distance between
the clutch pedal and the toeboard when the clutch is
disengaged do not agree with the standard values, it
is probably the result of either air in the hydraulic system
or a faulty master cylinder or clutch. Bleed the air, or
disassemble and inspect the master cylinder, release
cylinder or clutch.
(8) Turn back the carpet, etc.
2. BLEEDING
Specified fluid:
MITSUBISHI genuine brake fluid “DIA-QUEEN BRAKE
FLUID SUPER 4”
Caution
Use the specified brake fluid. Avoid using a mixture of
the specified fluid and other fluid.
Clutch pedal clevis pin play
B
Clutch pedal free
playDistance between the
clutch pedal and the
toeboard when the
clutch is disengaged
CD

REAR AXLE – On-vehicle Service 27-29
3-2 TORQUE TRANSFER MECHANISM
(1) Remove the drain plug to discharge the gear oil.
(2) Fit the drain plug and tighten it to the specified torque.
(3) Remove the filler plug and add the specified gear oil
up to the bottom end of the filler plug hole.
Specified gear oil:
MITSUBISHI GENUINE DIA QUEEN SUPER AYC
FLUID
Quantity used: 0.70
0
0.05dm3{0.700
0.05}
(4) Fit the filler plug and tighten it to the specified torque.
4. FLUID LEVEL CHECK
(1) Remove the maintenance lid located in the luggage
compartment.
(2) If the vehicle has been run, leave it for 5 min. or more
in an ordinary temperature (10
C to 30
C) to allow the
accumulator internal pressure to drop.
NOTE
If the ambient temperature is less than 10
C or less,
allow more time to leave the vehicle to stand idle.
(3) Check that the fluid level in the oil reservoir is in the
range between MAX and MIN.
(4) If the fluid level is lower than MIN, add the specified
fluid.
Specified fluid: MITSUBISHI DIA QUEEN ATF-SPII
(5) Reinstall the maintenance lid.
5. BLEEDING
(1) Lift up the vehicle.
(2) Remove the cap of the left bleeder screw on the torque
transfer differential and connect a vinyl hose.
(3) Gradually turn the steering wheel clockwise from the
straight-ahead position. At this time, loosen the left bleeder
screw and check that fluid is discharged with air.
(4) After air has been completely discharged, tighten the
bleeder screw.
Caution
While the system is being bled of air, add fluid as
necessary to ensure that it is left in the oil reservoir
during the entire procedure.
(5) Repeat steps (3) and (4) two to three times until no air
bubbles are recognized in the fluid that comes out. Then,
tighten the bleeder screw to the specified torque.
Tightening torque: 9 Nm {0.9 kgf
m}
(6) Perform steps (2) through (5) for the right bleeder screw.
Note, however, that the steering wheel should be turned
counterclockwise.
Filler plug
49 Nm {5.0 kgf
m}
Gear oil
Drain plug
49 Nm
{5.0 kgf
m}
Bleeder
screws Vinyl hose

BASIC BRAKE SYSTEM – Master Cylinder and Brake Booster35A-5
MASTER CYLINDER AND BRAKE BOOSTER

REMOVAL AND INSTALLATION
Pre-removal Operation

Brake Fluid Draining

Air Intake Hose RemovalPost-installation Operation

Brake Fluid Supplying

Brake Line Bleeding

Brake Pedal Adjustment (Refer to P.35A-2.)

Air Intake Hose Installation
15–18 Nm 15 Nm
Sealant: 3M ATD Part No.
8661 or equivalent
6
7 3
14
2
8
5
4
14 Nm
5 9
1
10 Nm
Removal steps
1. Brake pipe connection
2. Brake fluid level sensor connector
3. Master cylinder assembly
B
Clearance adjustment between brake
booster push rod and primary piston
A4. Vacuum hose
(With built-in check valve)5. Fitting
6. Snap pin
7. Clevis pin assembly
8. Brake booster
9. Sealer