power steering MITSUBISHI ECLIPSE 1991 Workshop Manual

STEERING - Social Tools
SPECIAL TOOLSPower steering
oilpressure hose setMeasurement of oilpressure
pressure gaugeadapter (pump side)
support cover

19-10STEERING - Service Adjustment Procedures c Power Steering>
r13A029213A0293
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1
i
SERVICE ADJUSTMENT PROCEDURES

STEERING WHEEL FREE PLAY CHECKNlSFABH
1. With engine running (hydraulic operation), set front wheels
straight ahead.2. Measure the play on steering wheel circumference before
wheels start to move when slightly moving steering wheel
in both directions.
Limit: 30 mm (1.2
in.13. When the play exceeds the limit, check for play on steering
shaft connection and steering linkage. Correct or replace.
4.If the free play still exceeds the limit value set steering wheel
straight ahead with engine stopped. Load 5
N (1 lb.1 towardssteering wheel circumference and check play.
Standard value (steering wheel play with engine
stopped): 11 mm
I.43 in.)
If the play exceeds the standard value, remove steering gearbox and check total pinion torque.
STEERING ANGLE CHECKN19FDBJ1. Set front wheels on turning radius gauge and measure
steering angle.Standard values:
Turbo
Inner wheel
31”30’+2”Outer wheel
27”OOOther models
Inner wheel
35”00’_+2”Outer wheel
2990’
2. When not within the standard value, it is probably a toe
problem. Adjust toe (refer to GROUP 2-Service Adjustment
Procedures) and recheck.TIE ROD END BALL JOINT VARIATION CHECK
(SHAFT DIRECTION)N19FVA8The inspection procedure for the tie rod end ball joint variation
is the same as for the manual steering system. (Refer to
P. 19-7.)
TIE ROD END BALL JOINT STARTING TORQUE
CHECKNlSFEBDThe inspection procedure for the tie rod end ball joint starting
torque is the same as for the manual steering system. (Refer to
P.19-8.)

STEERING - Service Adjustment Procedures < Power Steering >194113AO29313AO290
STEERING WHEEL CENTERINGNlSFIYAFCenter the steering wheel in the same way as the manual
steering. (Refer to P.19-8.1
STATIONARY STEERING EFFORT CHECKNlSFFAI
1. With the vehicle stopped on a flat, paved surface, turn the
steering wheel to the straight ahead position.
2. Start the engine and set it to 1,000 + 100 rpm.
Caution
After checking the engine rpm., there must be a return to
the standard idling rpm.3. Attach a spring balance to the outer circumference of the
steering wheel and measure the steering force required to
turn the steering wheel from the straight ahead position to
the left and right (within a range of 1.5 turns).
Also check to be sure that there is no significant fluctuationof the required steering force.
Standard value:
Steering effort37
N (8 lbs.) or less
Fluctuation allowance6 N (1.3 Iljs.)‘or less:...
STEERING WHEEL RETURN TO CENTER CHE$$$aETo make this test, conduct a road test and check as follows.
1.Make both gradual and sudden turns and check the steering
“feeling” to be sure that there is no difference in the steeringforce required and the wheel return between left and right
turns.2. At a speed of 35 km/h
(22 mph), turn the steering wheel
90°, and release the steering wheel after 1 or 2 seconds.
If the steering wheel then returns
70” or more, the return
can be judged to the satisfactory.
NOTE
There will be a momentary feeling of “heaviness” when thewheel is turned quickly, but this is not abnormal. (This is
because the oil pump discharge amount is especially apt to
be insufficient during idling.
1

19-12STEERING - Service Adjustment Procedures
Pressure ofWater pump
pulleyOlA0059Fluid fluctuation
While engine
runningWhile enginestopped13uo139
Return hoseVinyl hose
x ,3Ao,42-
V-BELT TENSION CHECKNlSFliAl
1.Check to be sure that the belt is not damaged and that the
V-belt is correctly attached to the groove of the pulley.
NOTE, If there is abnormal noise or belt slippage, check the belt
tension and check for unusual wear or abrasion, or damage,
of the
pullev contact surface, and for scars or scratches onthe
pulley.2.
Press in V-belt at the illustrated position with about 100 N
(22 Ibs.) and measure deflection.
Standard value: 6-9 mm
1.26.35 in.)
3. If there is a deviation from the standard value range, make
an adjustment of the belt tension by following the procedures
described below.
(1) Loosen bolts A, B and C (for holding the oil pump).
(2) Place a bar or similar object against the body of the oil
pump, and, while manually providing the suitable
amount of tension, adjust the amount of
flexion of the
belt.
(3) Tighten bolts A, B and C (for holding the oil pump).
(4) Check the amount of flexion of the belt; readjust if
necessary.
CautionThe check should be made after turning the engine
one time or more in the regular direction of rotation (tothe
dght).
FLUID LEVEL CHECKNlSFIAI
1.Park the vehicle on a flat, level surface, startthe engine, andthen turn the steering wheel several times to raise the
temperature of the fluid to approximately
50-60°C
(122-140°F).2. With the engine running, turn the wheel all the way to the
left and right several times.3. Check the fluid in the oil reservoir for foaming or milkiness.
Check the difference of the fluid level when the engine is
stopped, and while it is running. If the fluid level changes
considerably, air bleeding should be done.
FLUID REPLACEMENTNlSFJAJ
1.Raise the front wheels on a jack, and then support them with
rigid racks.2. Disconnect the return hose connection.
3.Connect a vinyl hose to the return hose, and drain the oil into
a container.

STEERING - Service -Adjustment Procedures < Power Steering >IgJf~
4.Disconnect the high-tension cable, and then while operating
the starting motor intermittently, turn the steering wheel all;
the way to the left and right several times to drain all of the
fluid.
Caution, 35
Be careful not to position thq high-tension able ye&r the
carburetor or the delivery pipe.5. Connect the return hoses securely, and then
secur& it ,with
the clip.6. Fill the oil reservoir with the specified fluid up
td the Ibwerposition of the filter, and then bleed the air.
.’
Specified fluid:MOPAR ATF PLUS (Automatic Transmis-sion Fluid Type 7176)/Automatic trans-
mission fluid “DEXRON” or “DEXRON II”Fluid level change:
within
5 mm (2 in.)While engineWhile engine
runningstoppedl?lrnl?J3
BLEEDINGNlSFKAG
1.Jack up the front wheels and support them by using a floor
stand.2. Manually turn the oil pump pulley a few times.
3. Turn the steering wheel all the way to the left and right
several times.
4.Disconnect the high-tension cable, and then, while operatingthe starting motor intermittently, turn the steering wheel all
the way to the left and right several times
(for 1-5 to 20
seconds).
Caution
1. During air bleeding, replenish the fluid supply so thatthe level never falls below the lower positiin
@f the
eiter.I .“:
2. If air bleeding is done while engine is runnind, ‘the air
will be
brokeir up and absorbed intti the fluid;‘?ti’ sureto do the bleeding only while cranking.
5.Connect the ignition cable, and then start the engine (idling).6. Turn the steering wheel to the left and right until there are
no air bubbles in the oil reservoir.
7. Confirm that the fluid is not milky, and that the level is
upito the specified position on the level gauge.
8.Confirm that there is very little change in the fluid level whenthe steering wheel is turned left and right.
9.Check whether or not the change in the fluid level is within5 mm
(.2 in.) when the engine is stopped and when it is
running.
Caution
1.If the change of the fluid level is 5 mm I.2 in.) or more,
the air has not been completely bled from the system,
and thus must be bled completely.2. If the fluid level rises suddenly after the engine is
stopped, the air has not been completely bled.
3. If air bleeding is not complete, there will be abnormal
noises from the pump and the flow-control valve, and
this
condition could cause a lessening of the life of the
pump, etc.

19-14STEERING - Service Adjustment Procedures < Power Steering >Shut-off valv
Pressure gauge
(FW close)
(C-3309-E)I
Temperature
gauge
\e’\
Pressure hoses
Re(Mti990994)
\Oil pump
713AO145Shut-off valve
Pressure gauge(FullY ?penl
Pressure hoses
OIL PUMP PRESSURE TESTNl9FlAF
CHECKING THE OIL PUMP RELIEF PRESSURE1. Disconnect the pressure hose from the oil pump, and then
connect the special tools.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50-60°C (122-14OOF).3. Start the engine and idle it at 1,000
f 100 rpm.
4. Fully close the shut-off valve of the pressure gauge and
measure the oil pump relief pressure to confirm that it is
within the standard value range.
Standard value: 7.5-8.2
MPa (1,067-1,166 psi)
Caution
Pressure gauge shut off valve must not remain closed formore than 10 seconds.
5.If it is not within the standard value, overhaul the oil pump.
6.Remove the special tools, and then tighten the pressure hoseto the specified torque.
7. Bleed the system.
CHECKING THE PRESSURE UNDER NO-LOAD CONDITIONS1. Disconnect the pressure hose from the oil pump, and then
connect the special tool.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50-60°C (122-14OOF).3. Start the engine and idle it at 1,000
-t 100 rpm.
4.
Check whether or not the hydraulic pressure is the standard
value when no-load conditions are created by fully openingthe shut-off valve of the pressure gauge.
Standard value:
0.8-I .O MPa (114-142 psi)
Limit: 1.5
MPa (213 psi)
5. If it is not within the standard value, the probable cause is
a malfunction of the oil line or steering gear box, so check
these parts and repair as necessary.
6.Remove the special tools, and then tighten the pressure hoseto the specified torque.
7. Bleed the system.

-
c. .
STEERING - Service Adiustment Procedures 3:945
Shut-off valve
Pressure gauge
CHECKING THE STEERING GEAR PETENTION HYDRAULIC
PRESSURE1. Disconnect the pressure hose from the oil
pbmd, and iheh
connect the special tools.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50~60OC (122~14pyF).
3. ‘Start the engine and idle it at 1,000 +
100 rem: .‘,’.
4.Fully close and fully open the shut-off valve of the pressure
gauge.
5.Turn the steering wheel all the way to the left or right; then
check whether or not the retention hydraulic pressure is the
standard value.
Standard value: 7.5-8.2 MPa (1,067-1,166 psi)6. When not within the standard value, overhaul the steering
gear box.
Remeasure fluid pressure.
7.Remove the special tools, and then tighten the pressure hoseto the specified torque.
8. Bleed the system.
OIL PRESSURE SWITCH CHECKNlSFUAB1. Disconnect the pressure hose from the oil pump, and then
connect the special tools.
2.Bleed the air, and then turn the steering wheel several timeswhile the vehicle is not moving so that the temperature of
the fluid rises to approximately
50-60°C (122-14OOF).3. The engine should be idling.
4. Disconnect the connector for the oil pressure switch, and
place an ohmmeter ,in position.
5.Gradually close the shut-off valve of the pressure gauge andincrease the hydraulic pressure then check whether the
hydraulic pressure that activates the switch is the standard
value.
Standard value: 1.5-2.0 MPa (213-284 psi)
6. Gradually open the shut-off valve and reduce the hydraulic
pressure; then check whether the hydraulic pressure that
deactivates the switch is the standard value.
Standard value: 0.7-1.2 MPa (100-171 psi)
7.Remove the special tools, and then tighten the pressure hoseto the specified torque.
8. Bleed the system.

19-28STEERING - Power Steering Gear Box
POWER STEERING GEAR BOXREMOVAL AND INSTALLATION
-
NlSPA--
Pre-removal Operation@Draining of the Power Steering Fluid@Removal of Transfer:1&&r:, GROUP 21 -Transfer.)50-65 Nm36-47 ft.lbs.
I/a
Post-installation Operationl Installation of Transfer(:zD:” GROUP 21 -Transfer.)
l SSy,lying of the Power Steeringl Bleedino of the Power Steering
Fluid
Liie(Refer to P.19-13.1l khecking of Steering Wheel Posi-tion with Wheels Straight Ahead*Adjustment of the Front Wheel
Alignment
(Refer to GROUP Z-Service Ad-
justment Procedures.)
Removal steps1.
“,;;rt assembly and gear box connecting
bolt
2. Connection for return tube
3. Connection for pressure hose
4. Cotter pin
5.
Aft-cd end and knuckle connecting
4I)f3: H,“a:od end
8. Stabilizer bar bracket
9. Front roll stopper mounting bolt10. Center member rear mounting bolt
4411. Front exhaust pipe l * l + 12. Gear box assembly
l + 13. Mounting rubber
(I) Reverse the removal procedures to reinstall.(2) +e : Refer to “Service Points of Removal”.(3) .* : Refer to “Service Points of Installation”.(4) q : Non-reusable parts(4) lli
3oh2 Nm22-30 ftlba.^a-aa I.au-IUU NrnI
IO-15 Nm22-29
ft.lbs.
15-20 Nm15-20 Nm
11-14 ft.lbs.
13A027612-18 Nm
A-34 IUm
K-
1 j-+ft.lbs.
:II I-.5
/ .2!
i!!1
NOTEW-W Nm43-58
ft.lbs.13A0353

STEERING - Power Steering Gear Box
lS1017S
I /Mounting rubber
IIMdting clamp13Roo77
5SERVICE POINTS OF REMOVAL
NIBPNAB6. DISCONNECTION OF TIE-ROD END
Using the special tool, disconnect the tie rod from the
knuckle.
Caution
1.Be sure to tie the cord of the special tool to the nearby
part.2. Loosen the nut but do not remove it.
11. REMOVAL OF FRONT EXHAUST PIPE
Refer to GROUP
2-Stabilizer Bar.
12. REMOVAL OF GEAR BOX ASSEMBLY
(I 1 Move the rack completely to the right and then remove
the gear box from the
crossmember.
(2) While tilting the gear box downward, remove it to the
left.
Caution
When removing the gear box, pull it out carefully andslowly to avoid damaging the boots.
INSPECTION
NlSPCADaGEAR BOX FOR TOTAL PINION TORQUE
Using the special tools, rotate the pinion gear at the rate of one
rotation in approximately 4 to 6 seconds to check the total pinion
torque.Standard value:
0.6-l .3 Nm (5-l 1 in.lbs.1
NOTE
Measure the pinion torque through the whole stroke of the rack.If the measured value is not within the standard range, first
adjust the rack support cover, and then check the total pinion
torque again.If the total pinion torque cannot be adjusted to within the
standard range by adjusting the rack support cover, check the
rack support cover, rack support spring, rack support and
replace any parts necessary.CHECK THE TIE ROD FOR SWING RESISTANCE
(1) Give 10 hard swings to the tie rod.I
(2) Measure the tie rod swing resistance with a spring balance.
’Standard value: 8-20 N (1.8-4.4 Ibs.)
12-5 Nm (17-43 in.lbs.)l
(3) If the measured value exceeds the standard value, replace
tie rod assembly.
NOTE
Even if the measured value is below the standard value, thetie rod which swings smoothly without excessive play may
be used.SERVICE POINTS OF INSTALLATION
Nl9PDA9
13. INSTALLATION OF MOUNTING RUBBER/lZ. GEAR BOX
ASSEMBLY
When installing the mounting rubber, align the projection ofthe mounting rubber with the indentation in the
cross-member to install the gear box.

19-30STEERING - Power Steering Gear Box
DISASSEMBLY AND REASSEMBLY
12-18
Nm9-13 ftlbs.
17-28 Nm17 ,-12 19 ft.lbs.rSteering gear seal k!t
Grease
23;>.
50155 Nm36-40 ft.lbs.I
I2b
I‘\SO-56 Nm36-40 ft.lbs.
80-100 Nm : _58-72 ft.lbs./ /
Disassembly steps1. Tie rod end locking nut
l 42. Tie rod end+I) I)+ 3. Dust cover
4. Bellows clip
a*5. Bellows band
*a 6. Bellows4,7. Tab washer
l 48. Tie rods
9. Feed tube
10. O-rings
*aAdjustment of total pinion torque
+* l * II. End plug12. Self-locking nut
13. Locking nut
l * l * 14. Rack support cover
_- -lb. Hack SUppOrt sprlngw 16. Rack support
17. Valve housing
+* l * 18. Oil seal,+ 19. Pinion and valve assembly
l + 20. Seal ringmo25a
+e l a 21. Ball bearingl * l * 22. Oil seall * l 4 23. Circlip
24. Rack stopper
l * 25. Rack bushing
4* l * 26. Rackl * 27. O-ring
+* l + 28. Oil seal29. Seal ring
30. O-ring
++ l 31. Ball bearing+W l 32. Needle roller bearing+* l a 33. Oil seal+* l a 34. Back-up washer
35. Rack housing
NOTE(1) Reverse the disassembly procedures to reassemble.(2) +e : Refer to “Service Points of Disassembly”.(3) l + : Refer to “Service Points of Reassembly”.(4) q : Non-reusable parts