oil pressure MITSUBISHI ECLIPSE 1991 Repair Manual

19-2STEERING - Specifications
SPECIFICATIONS
GENERAL SPECIFICATIONS
ItemsSteering wheel
Steering wheel O.D.mm (in.)
Gear boxSteering gear type
Power steering oil pump
Oil pump type
Displacementcm3/rev. (cu.in./rev.)
Relief set pressureMPa (psi)
SERVICE SPECIFICATIONS
MANUAL STEERING
Items
Standard value
Steering angleInner wheel
Outer wheel
Tie rod end ball joint starting torqueNm
(in.lbs.)Assembly dimension of lower column tubemm (in.)
Total pinion torqueNm
(in.lbs.)From
O-90”From
90”-650”Tie-rod joint swing resistance
N (Ibs.)Tie-rod joint swing torque
Nm
(in.lbs.)
LimitSteering wheel free play
mm (in.)
Variation of tie rod end ball joint shaft directionmm (in.)
POWER STEERING
Items
Standard valueSteering wheel free play (with engine stopped)
mm (in.
Steering angle
Turbo
Inner wheel
Outer wheel
Other models
Inner wheel
Outer wheel
Tie rod end ball joint starting torque
Nm
(in.lbs.)Stationary steering effort
N (Ibs.)Assembly dimension of lower column tube
mm (in.)
V-belt deflection
mm (in.)
NlSCA--
Specifications372 (14.6)
Rack and pinion
Vane type
9.6 t.59)
8 (1,138)NlSCB-
Specifications37000’
* 20
3OOOO’
0.5-2.5 (4-22)
24.8-25.2
(.98-,991
0.6-l .3 (5-l 1 I
0.2-l .o (2-9)
8-20 (I .8-4.4)2-5
(17-43)30 (1.2)
1.5 l.059)
Specifications
11
(.43)
31"30'+2"
27"OO'
35"00'f2"
29"20'
0.5-2.5 (4-22)
37 (8) or less
24.8-25.2
(.98-.99)6-9 (.24-.35)

-
STEERING - Specificdions
i’.g=s
“,.
itemsSpecifications
Oil pump pressure
MPa (psi.)
Pressure gauge valve closed7.5-8.2 (1,067-1,166)
Pressure gauge valve opened0.8-I .O (114-142)
Oil pressure switch operating pressure
MPa (psi1Oil pressure switch contacts closed (continuity)
1.5-2.0 (213-284)Oil pressure switch contacts opened (no continuity)
0.7-1.2 (100-171)Total pinion torque
Nm
(in.lbs.)0.6-I .3 (5-l 1)Tie-rod joint swing resistance
N (Ibs.18-20 (1.9-4.6)Tie-rod joint swing torque
Nm
(in.lbs. 12-5 (17-43)
LimitSteering wheel free play (when hydraulic operation)
30
(1.2)mm (in.)Variation of tie rod end ball joint shaft direction
mm
(in.) 1.5 (.059)
Oil pump pressure
Pressure gauge valve openedMPa (psi)1.5 (213)Space between vane and rotor
mm
(in.)0.06 i.0024)Shaft backlash of pump body bushing and pulley assembly
0.1
i.004)mm (in.)
TORQUE SPECIFICATIONSNlSCC--
c.ItemsSteering wheel and shaft
Steering wheel lock nut
Lower bracket
Tilt bracket installation bolt
Joint assembly
Column support
Column tube clamp
Manual steering gear box
Joint assembly to gear box
Tie rod end to knuckle
Stay to crossmember
Stabilizer bar bracket
Front roll stopper insulator nut
Center member to body
Front exhaust pipe to rubber hanger
Front exhaust pipe mounting bolt
Front exhaust pipe mounting nut
Gear box mounting bracket to crossmember
Tie rod end lock nut
Tie rod to rack
Rack support cover locking nut
Top plug locking nutNmftlbs.35-45
25-33
8-12
6-9
8-12
6-9
15-2011-148-12
6-9
4-5
3-4
15-20 a11-1424-34
17-25
70-8051-58
30-4222-30
50-6536-47
80-l 0058-72
IO-157-l 1
30-4022-29
30-4022-29
60-8043-58
50-5536-40
80-10058-72
50-7036-51
50-7036-51

19-4STEERING - Specifications
ItemsNmIft.lbs.Power steering gear box
Joint assembly
Pressure hose to gear box
Return tube to gear box
Tie rod end to knuckle
Stay to crossmember
Stabilizer bar bracket
Front roll stopper insulator nut
Centermember to body
Front exhaust pipe to rubber hanger
Front exhaust pipe mounting bolt
Front exhaust pipe mounting nut
Gear box mounting bracket to crossmember
Tie rod end lock nut
Tie rod to rack
Feed tubes
End plugPinion and valve assembly to self-locking nut
Rack support cover locking nut
Valve housing installation bolts
Power steering oil pump
Pressure hose to oil pump
Oil pump to oil pump bracket
Heat protector installation nut
Oil pump bracket to engine
1.8L Engine
Front side
Left side2.0L DOHC Engine
Oil reservoir installation bolt
Oil reservoir bracket installation bolt
Pump cover to pump body
Suction connector to pump body
Connector to pump body
Terminal assembly to pump body
ower steering hoses
Cooler tube to body
Cooler tube to hood lock stay
Cooler tube clamp
Return tube to body
Pressure tube to gear box
Return tube to gear box
Pressure hose to body
Pressure hose to oil pump
Pressure hose to pressure tube
Pressure hose bracket11-14
9-13
9-13
17-25
51-58
22-3036-47
58-72
7-11
22-29
22-29
43-58
36-4058-72
9-13
36-51
14-22
36-51
12-19
15-2012-18
12-18
24-34
70-80
30-42
50-65
80-100
10-15
30-40
30-40
60-80
50-55
80-10012-18
50-70
20-30
50-7017-26
14-21
10-1535-45
25-33
9-14
7-1027-41
20-3025-33
18-24
25-33
18-24
9-14
7-109-14
7-1018-22
13-16
6-104-7
50-7036-51
25-3018-22
9-14
7-104-6
29-43
3.0-4.5'2-3
9-14
7-1012-18
9-13
12-18
9-13
9-14
7-1014-21
IO-15
30-4022-29
9-14
7-10

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

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.

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.

STEERING - Power Steering Oil Pump1849
POWER STEERING OIL PUMP
“@REMOVAL AND INSTALLATION
< 1.8L Engine >35-45 Nm25-33 ft.lbs.
20-30 ft.lbs.
13A0270
< 2.0L DOHC Engine >
35-45 Nm25-33 ft.lbs./
NlgRA-
Pre-removal Operation0 Draining the Power Steering Fluid
‘/1
7
25-33 Nm18-24 ft.lbs.
35-45 Nm
Post-installation Operation0 Supplying of the Power Steering
Fluid0 Bleeding the Power Steering Fluid
Line(Refer to P.79-13.)0 Checking of the Oil Pump Pressure(Refer to P.l9-14.)~
9-14 Nm
7-10 ft.lbs.
\
1
9-14 Nm7-10 ft.lbs.
13AO269
Removal steps1. Pressure switch connector
a*2. Return hose
4*3. Suction hose+r) .+ 4. Pressure hose
5. O-ring
6. V-belt
7. Oil pump
8. Oil pump bracket
9. Heat protector
<2.0L DOHC Engine>10. Oil reservoir
1 1. Reservoir bracket
NOTE(I) Reverse the removal procedures to reinstall.
(2) *I) : Refer to “Service Points of Removal”.(3) l a : Refer to “Service Points of Installation”.(4) 0 : Non-reusable parts

1 S-40STEERING - Power Steering Oil Pump
SERVICE POINTS OF REMOVAL
Nl8RW2. DISCONNECTION OF RETURN HOSE
(1) Removal the reservoir cap and disconnect the return
hose from the reservoir to drain the fluid.
(2) Jack up the front wheels.
(3) Disconnect the high tension cable and turn the engine
over several times to drain the fluid from the gear box.
3. DISCONNECTION OF SUCTION
HOSE14. PRESSURE
HOSE
Caution
The alternator is located under the oil pump. If any of the
hoses are to
be removed, cover the alternator with a ragto protect it from oil.
INSPECTION
NIRCAA0 Check the V-belt for cracks.0 Check the pulley assembly for uneven rotation.
SERVICE POINTS OF INSTALLATION
4. INSTALLATION OF PRESSURE HOSE
NlSRDAH
Connect the pressure hose so that its slit part contacts theoil pump’s guide bracket.

19-46STEERING - Power Steering Hoses
POWER STEERING HOSESREMOVAL AND INSTALLATIONNlSTA-
Pre-removal Operationl C+?ing of the Power Steering
,‘; ,L..,.,.):. ,4-14 NmwaI. . .-...5-10 ft.lbs.7
I9-14 NmI7 7-10 ft.lbs.
Post-installation Operationl Supplying of the Power Steering-.
1 Fluid
l Bleeding of the Power Steering
Fluid Line(Refer to P.19-13.1,621 N/-@b
K
2
3.0-4.5 Nm /2-3 ft.lbs.I/II z-”a.
413A0274
Removal steps
1.Returnhose2.Suctionhose
3.Returnhose4. Cooler tube
5. Return tube
6. Rubber hose
.a 7. Pressure hose
8.Pressure tube9.Return tube
10.O-ring
NOTE(1) Reverse the removal procedures to reinstall.
(2) l a : Refer to “Service Points of Installation”.(3) q : Non-reusable partsWhite lineUP0143SERVICE POINTS OF INSTALLATION
NlSTDAD7. INSTALLATION OF PRESSURE HOSE
(1) Connect the pressure hose so that its slit pat-t contacts
the oil pump’s guide bracket.
(2) When the pressure hose is installed, align the white line
on the pressure hose with the white line on the pressuretube so that together they form a straight line.