Mitsubishi PWJE9086 Service Manual 37

Page 1

STEERING

CONTENTS

SPECIFICATIONS 2
Service Specifications 2
Lubricants 4
Sealants and Adhesives 4
SPECIAL TOOLS 5
SERVICE ADJUSTMENT PROCEDURES 6
Steering Wheel Free Play Check 6
Steering Gear Backlash Check 7
Ball Joint Axial Play Check 7
Steering Angle Check 8
Steering Gear Oil Level Check 8
Stationary Steering Effort Check 8
Checking of the Steering Wheel
Return to Centre 9
Drive-Belt Tension Check 9
Fluid Level Check
Fluid Replacement
Bleeding
Oil Pump Pressure Test
10
10
11
12
Power Steering Oil Pressure Switch
Check
13
STEERING COLUMIN AND SHAFT" 14
MANUAL STEERING GEAR BOX 20
POWER STEERING GEAR BOX* 24
POWER STEERING GEAR BOX*
POWER STEERING OIL PUMP
24
34
POWER STEERING GEAR BOX*
POWER STEERING OIL PUMP
STEERING HOSES
24
34
39
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) - AIR BAG

(1) An SRS air bag for the driver's side seat is optional equipment in this vehicle.

(2) The SRS includes the following components: impact sensors, SRS diagnosis unit: SRS warning lamp, air bag module, clock spring, interconnecting wiring. Other SRS-related components (that may have to be removed/installed in connection with SRS service or maintenance) are indicated in the table of contents by an asterisk (*).

  • Improper service or maintenance of any component of the SRS, or any SRS-related component, can lead to personal injury or death to service personnel (from inadvertent firing of the air bag) or to the driver (from rendering the SRS inoperative).
  • (2) Service or maintenance of any SRS component or SRS-related component must be performed only at authorized MITSUBISHI dealer.
  • (3) MITSUBISHI dealer personnel must thoroughly review this manual, and especially its GROUP 52B – Supplemental Restraint System (SRS), before beginning any service or maintenance of any component of the SRS or any SRS-related component.

© Mitsubishi Motors Corporation Jun. 1994

E3766...

WARNING!

Page 2

SPECIFICATIONS

SERVICE SPECIFICATIONS

E37CB--

Items Specifications
Standard value
Steeering angle
Inner wheel 32°40′ – 0
Outer wheel 29°45′
Steering gear oil level mm (in.) 25 (0.98)
Stationary steering effort N (kg, lbs.) 37 (3.7, 8.2)
Drive belt tension mm (in.)
2400
When checked 6.0-10.0 (0.236-0.394)
When a new belt is installed 5.5 (0.217)
When an old belt is installed 7.0 (0.276)
3000 –12 VALVE
When checked 9.0-14.5 (0.354-0.571)
When a new belt is installed 8.0 (0.315)
When an old belt is installed 10.0 (0.394)
3000–24 VALVE
When checked 10.5–14.5 (0.413–0.571)
When a new belt is installed 9.5-11.5 (0.374-0.452)
When an old belt is installed 11.5–13.5 (0.452–0.531)
3500
When checked 13.0–17.0 (0.511–0.669)
When a new belt is installed 11.0–13.0 (0.433–0.511)
When an old belt is installed 14.0–16.0 (0.551–0.630)
2500D
When checked 9.0-11.0 (0.354-0.433)
When a new belt is installed 7.0 (0.276)
When an old belt is installed 9.5 (0.374)
When checked 8.0–12.0 (0.315–03472)
When a new belt is installed 6.0-8.0 (0.236-0.315)
When an old belt is installed 9.0-11.0 (0.354-0.433)
Oil pump pressure MPa (kg/cm 2 , psi)
<2400, 3000–12 VALVE, 2500D>
Oil pump relief pressure 7.5–8.2 (75–82, 1,067–1,166)
Pressure under no-load conditions 0.8–1.0 (8–10, 114–142)
Steering gear retention hydraulic pressure 7.5–8.2 (75–82, 1,067–1,166)
<3000-24 VALVE, 3500, 2800D>
Oil pump reliet pressure 8.3–9.0 (83–90, 1,1951,280)
Pressure under no-load conditions 0.8-1.0 (8-10, 114-142)
Steering gear retention hydraulic pressure 8.3–9.0 (83–90, 1,195–1,280)
Page 3
Items Specifications
Pressure switch activation oil pressure
MPa (kg/cm 2 , psi)
OFF → ON 1.5–2.0 (15–20, 213–284)
ON → OFF 0.7–1.2 (7–12, 100–171)
Mainshaft starting torque (Manual steering)
Nm (kgcm, in.lbs.) 0.35–0.55 (3.5–5.5, 3–5)
Mainshaft axial play (Power steering) mm (in.) 0.03–(0.0012)or less
Cross-shaft axial play mm (in.)
Manual steering 0.05 (0.0020)
Power steering 0.05 (0.0020)
Mainshaft total starting torque Nm (kgcm, in.lbs.)
Manual steering 0.65-0.85 (6.5-8.5, 5.7-7.3)
Power steering 0.45–1.25 (4.5–12.5, 4–11)
Ball joint starting torque Nm (kgcm, in.lbs.)
Tie rod end 1–3 (10–30, 8.9–26)
Idler arm 0.5-2.0 (5-20, 4-17)
Idler arm turning torque Nm (kgcm, in.lbs.) 0.3–2.0 (3–20, 3–17)
Spring balance reading N (kg, lbs) 2.3-15.4 (0.23-1.54, 0.5-33.9)
Limit
Steering wheel free play mm (in.)
Manual steering 50 (1.97)
Power steering 50 (1.97)
Steering gear backlash mm (in.) 0.5 (0.020)
Ball joint axia play mm (in.) 1.5 (0.059)
Backlash between ball groove of rack pisto n
and balls mm (in.) 0.05 (0.0020)
Gap between vane and rotor groove mm (in.) 0.06 (0.0024)
Clearance between oil pump drive shaft
and pump body mm (in.) 0.1 (0.004)
Page 4

LUBRICANTS

E37CD--
Items Specified lubricant Quantity
Manual steering gear oil Hypoid gear oil API
GL-4 or higher SAE 80
210 cm 3 (12.81 cu.in.)
Power steering fluid
L.H. drive vehicles _
<2800D> 1.11 dm 3 (1.17 U.S.qts.,
0.98 imp.qts.)
1.06 dm 3 (1.12 U.S.qts.,
0.93 imp.qts.)
R.H. drive vehicles Automatic transmission fluid
DEXRON or DEXRON II
<2800D> 1.02 dm 3 (1.08 U.S.qts.,
0.90 lmp.gts.)
0.97 dm 3 (1.02 U.S.qts.,
0.85 lmp.qts.)
Power steering gear box
Bearing, O-ring and oil seal Automatic transmission fluid
DEXRON or DEXRON II
As required
Oil pump
Flow control valve and O-ring
Friction surface of rotor, vane, cam
ring and pump cover
Automatic transmission fluid
DEXRON or DEXRON II
As required

SEALANTS AND ADHESIVES

E37CE--

Items Specified sealant and adhesive Remarks
Steering column cover assembly installation hole
Dash panel cover installed surface
Manual steering gear box top cover packing
Manual steering gear box cross-shaft adjusting and lock nut 3M ATD Part No. 8661 or equivalent Semi-drying sealant
Manual steering gear box top cover bolt
Manual steering gear box adjusting shim
Tie-rod end dust cover installed surface
Inside of steering column lower pipe bearing
Connection of steering column upper
and steering column lower (Nutiside)
3M Stud Locking Part No. 4170 or equivalent Semi-drying sealant
Steering column upper bearing 3M ATD Part No. 8001 or equivalent Semi-drying sealant
Page 5

SPECIAL TOOLS

37-5

1
Tool Number Name Use
SOFI
SOFI
MB990635,
MB991113 or
MB991406
Steering linkage puller Disconnection of the steering linkage
2.4 MB990948
)
Steering linkage joint gauge Measurement of the ball joint axial play
MB990662 Oil pressure gauge Measurement of the oil pump pressure
MB990993 Power steering oil
pressure gauge
adapter
(pump side)
MB990994 Power steering oil
pressure gauge
adapter
(hose side)
MB990803 Steering wheel puller Removal of the steering wheel
MB990826 Torx wrench Removal and installation of the steering column
MB990628 Snap ring pliers Removal and installation of snap ring
MB990915 Pitman arm puller Removal of the pitman arm

© Mitsubishi Motors Corporation Feb. 1991

PWJE9086

Page 6
Tool Number Name Use
MB990925 Bearing and oil seal installer set Installation of the oil seal and the ball
bearing
(Refer to GROUP 26.)
MB990938, MB990928, MB990926,
MB991203
MB991151
MB990685
Torque wrench Measurement of the mainshaft starting torque
MB991006 or
MB990228
Preload socket Measurement of the mainshaft total starting torque
MB991367 Special spanner Removal and installation of the lock nut
A Co MB991394 Pin set
MB990326 Preload socket Measurement of the ball joint starting torque
MB990778
)
Ball joint remover Disconnection of idler arm from relay rod

SERVICE ADJUSTMENT PROCEDURES

STEERING WHEEL FREE PLAY CHECK MANUAL STEERING

E37FAAF

Standard value: 26.6 mm (1.05 in.) or less
Limit: 50 mm (1.97 in.)

If the measured value exceeds the repair limit, check the steering gear backlash and ball joint axial play.

© Mitsubishi Motors Corporation Feb. 1991

Page 7

POWER STEERING

1. With the engine stationary and the steering wheel in the straight-ahead position, apply a force of 5 N (0.5 kg, 1.1 lbs.) to the steering wheel in the peripheral direction.

Standard value: 26.6 mm (1.05 in.) or less Limit: 50 mm (1.97 in.)

2. If the measured value exceeds the repair limit, check the steering gear backlash and ball joint axial play.

STEERING GEAR BACKLASH CHECK E37FBAC

  • 1. Jack up to the vehicle front and hold the steering wheel in the straight ahead position.
  • 2. Apart the pitman arm and the relay rod.
Caution

  • 1. Use cord to bind the special tool closely so it will not become separated.
  • 2. The nut should be loosened only, not removed.

Limit: 0.5 mm (0.020 in.)

3. If the measured value exceeds the limit, screw in the steering gear box adjusting bolt until steering wheel free play is within the range of standard value.

Caution

  • 1. Be sure to make the adjustment with the steering wheel in the straight-ahead position.
  • 2. If the adjusting bolt is overtightened, more steering effort will be required, and return of the wheel will be adversely affected.

BALL JOINT AXIAL PLAY CHECK (TIE ROD END AND PITMAN ARM)

  • E37FCAG
  • 1. Hold the ball joint by using the special tool.
  • 2. Set the scale of special tool to the upper limit (A), compress the ball stud, and measure the axial play. The measured displacement should be between the upper limit (A) and the centre graduation (B).

Limit: 1.5 mm (0.059 in.)

3. If the measured displacement exceeds the centre graduation (B), replace the ball joint.

Caution

Even if the variation is within the limit, check ball joint starting torque.

PWJE9086

Page 8

-se ft lbs

STEERING ANGLE CHECK

1. Place the front wheel on a turning radius gauge and measure the steering angle.

Standard value:

Inner wheel 32°40′ 0-3. Outer wheel 29°45′

2. If the steering angle is outside the standard value, after checking the toe-in, (Refer to GROUP 33–Service Adjust-ment Procedures), adjust the steering angle with the stopper bolt.

13E005

STEERING GEAR OIL LEVEL CHECK (MANUAL STEERING)

E37FEAAa

E276D A

Remove the breather plug and check the oil level in the steering gear box by using a special gauge or a thin screwdriver.

Standard value: 25 mm (0.98 in.)

STATIONARY STEERING EFFORT CHECK (POWER STEERING)

E37FFAG

  • 1. Place the vehicle on a level surface and place the steering wheel in the straight-ahead position.
  • 2. Set the engine speed to 1,000 r/min.

Caution After checking the engine r/min., there must be a return to the standard idling r/min.

3. Measure the tangential force with a spring balance by turning the steering wheel clockwise and counterclockwise one and a half turns.

Standard value: 37 N (3.7 kg, 8.21 lbs.) or less

4. If the stationary steering effort exceeds the standard value, check for belt slackness, damage, insufficient oil, air mixed into oil, collapsed or twisted hoses, etc., and repair if found.

Page 9

CHECKING OF THE STEERING WHEEL RETURN TO CENTRE (POWER STEERING) E37FGAA

To check for the return of steering wheel to centre, carry out drive test and check the following points.

  • Make gentle and sharp turns and check to get a feel for that there is no appreciable difference in steering effort and return to centre between right and left turns.
  • 2. Drive at a speed of about 35 km/h (22 mph), turn the steering wheel 90° clockwise or counterclockwise, and release the wheel a second or two later. If the wheel returns more than 70°, the return may be considered good.
NOTE

When the steering wheel is turned abruptly, momentary hard steering might result, but this does not mean any problem. It is caused by low oil pump delivery during idling.

DRIVE-BELT TENSION CHECK (POWER STEERING)

E37FHAI

1. Measure the flexion of the V belt when it is subjected to a force of 10 kg in the place shown.

Standard value:

mm (in.)

2400 3000-12 VALVE 3500
When checked 6.0–10.0
(0.236–0.394)
9.0–14.5
(0.354–0.571)
13.0–17.0
(0.511–0.669)
When a new belt is installed 5.5 (0.217) 8.0 (0.315) 11.0–13.0
(0.433–0.511)
When an old belt is installed 7.0 (0.276) 10.0 (0.394) 14.0–16.0
(0.551–0.630)
3000 – 250 00D
24 VALVE V type V-ribbed type
When checked 10.5–14.5
(0.413–0.571)
9.0–11.0
(0.354–0.433)
8.0–12.0
(0.315–0.472)
When a new belt is installed 9.5–11.5
(0.374–0.452)
7.0 (0.276) 6.0-8.0
(0.236-0.315)
When an old belt
is installed
11.5–13.5
(0.452–0.531)
9.5 (0.374) 9.0–11.0
(0.354–0.433)

2. If the flexion value is outside the standard value, adjust by the following procedure.

Page 10

<2400, 3000-12 VALVE, 2500D>

  • (1) Loosen oil pump fixing bolts A, B and C.
  • (2) Adjust the amount of flexion in the belt by setting a bar against the body of the oil pump and tightening the belt by hand to the appropriate amount.
  • (3) Tighten the fixing bolts A, B and C in that order.

<3000-24 VALVE, 3500> Adjusting bolt Fixing nut

<3000-24 VALVE, 3500>

  • (1) Loosen tension pulley fixing nut.
  • (2) Adjust belt tension with adjusting bolt.
  • (3) Tighten fixing nut.

FLUID LEVEL CHECK (POWER STEERING) E37FIAD

  • Park the vehicle on a flat, level surface, start the engine, and then 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.
  • 4. 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 REPLACEMENT (POWER STEERING) E37FJAG

  • 1. Raise the front wheels on a jack, and then support them with rigid racks.
  • 2. Disconnect the return hose.
  • 3. Connect a vinyl hose to the return hose, and drain the oil into a container.
  • 4. On vehicles with a petrol engine, disconnect the hightension cable. On vehicles with a diesel engine, remove the fuel cut valve connector attached to the injection pump.

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

Be careful not to position the high-tension cable near the carburettor or the delivery pipe.

  • 5. Connect the return hoses securely, and then secure it with the clip.
  • 6. Fill the oil reservoir with the specified fluid up to the lower position of the filter, and then bleed the air.
Specified fluid: Automatic transmission fluid DEX-RON or DEXRON II
Page 11

BI FEDING

  • 1 Jack up the front wheels and support them by using a rigid rack
  • 2. Manually turn the oil pump pulley a few times.
  • 3 Turn the steering wheel all the way to the left and to the right five or six times
  • 4. On vehicles with a petrol engine, disconnect the hightension cable. On vehicles with a diesel engine, remove the fuel cut valve connector attached to the injection pump. While operating the starting motor intermittently. turn the steering wheel all the way to the left and right five or six times (for 15 to 20 seconds).
Caution

  • 1. During air bleeding, refill the fluid supply so that the level never falls below the lower position of the filter
  • 2. If air bleeding is done while engine is running. the air will be broken up and absorbed into the fluid; be sure to do the bleeding only while cranking.
  • 5. On vehicles with a petrol engine, connect the ignition cable. On vehicles with a diesel engine, connect the fuel cut valve connector attached to the injection pump. 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 up to the specified position on the level gauge.
  • 8. Confirm that there is very little change in the fluid level when the steering wheel is turned left and right.
  • 9. Check whether or not the change in the fluid level is within 5 mm (0.20 in.) when the engine is stopped and when it is running.
Caution

  • 1. If the change of the fluid level is 5 mm (0.20 in.) or more, the air has not been completely bled from the system, and thus must be bled completelv.
  • 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.

E37FKAI
Page 12

OIL PUMP PRESSURE TEST

CHECKING THE OIL PUMP RELIEF PRESSURE

  • 1. Disconnect the pressure hose from the oil pump, and then connect the special tools.
  • Bleed the air, and then turn the steering wheel several times while the vehicle is not moving so that the temperature of the fluid rises to approximately 50–60°C (122–140°F).
  • 3. Start the engine and idle it at 1,000 ± 100 r/min.
  • 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: <2400, 3000–12 VALVE, 2500D> 7.5–8.2 MPa (75–82 kg/cm2, 1,067–1,166 psi.) <3000–24 VALVE, 3500, 2800D> 8.3–9.0 MPa (83–90 kg/cm2, 1,195–1,280 psi.)

Caution

Pressure gauge shut off valve must not remain closed for more 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 hose to the specified torque.
  • 7. Bleed the system.
CHECKING THE PRESSURE UNDER NO-LOAD CONDI-TIONS

  • 1. Disconnect the pressure hose from the oil pump, and then connect the special tools.
  • Bleed the air, and then turn the steering wheel several times while the vehicle is not moving so that the temperature of the fluid raises to approximately 50–60°C (122–140°F).
  • 3. Start the engine and idle it at 1,000 ± 100 r/min.
  • 4. Check whether or not the hydraulic pressure is the standard value when no-load conditions are created by fully opening the shut-off valve of the pressure gauge.
Standard value: 0.8-1.0 MPa (8-10 kg/cm2, 114-142 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 hose to the specified torque.
  • 7. Bleed the system.

Page 13

CHECKING THE STEERING GEAR RETENTION HYDRAULIC PRESSURE

  • 1. Disconnect the pressure hose from the oil pump, and then connect the special tools.
  • Bleed the air, and then turn the steering wheel several times while the vehicle is not moving so that the temperature of the fluid rises to approximately 50–60°C (122–140°F).
  • 3. Start the engine and idle it at 1,000±100 r/min.
  • 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: <2400, 3000–12 VALVE, 2500D> 7.5–8.2 MPa (75–82 kg/cm², 1,067–1,166 psi.) <3000–24 VALVE, 3500, 2800D> 8.3–9.0 MPa (83–90 kg/cm², 1,195–1,280 psi.)

  • 6. When not within the standard value, overhaul the steering gear box. Remeasure fluid pressure.
  • Remove the special tools, and then tighten the pressure hose to the specified torque.
  • 8. Bleed the system.
POWER STEERING OIL PRESSURE SWITCH CHECK E37F0AA

  • 1. Disconnect the pressure hose from the oil pump, and then connect the special tools.
  • Bleed the air, and then turn the steering wheel several times while the vehicle is not moving so that the temperature of the fluid rises to approximately 50–60°C (122–140°F).
  • 3. The engine should be idling.
  • 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 and increase the hydraulic pressure then check whether or not the hydraulic pressure that activates the switch is the standard value.
Standard value: 1.5–2.0 MPa (15–20 kg/cm2, 213–284 psi.)

6. Gradually open the shut-off valve and reduce the hydraulic pressure; then check whether or not the hydraulic pressure that deactivates the switch is the standard value.

Standard value: 0.7–1.2 MPa (7–12 kg/cm2, 100–171 psi.)

  • 7. Remove the special tools, and then tighten the pressure hose to the specified torque.
  • 8. Bleed the system.
Page 14

STEERING COLUMN AND SHAFT REMOVAL AND INSTALLATION

E37HA--

Page 15

SERVICE POINTS OF REMOVAL 5. REMOVAL OF STEERING WHEEL ASSEMBLY

E37HBAT

10. REMOVAL OF SPECIAL SCREW

Remove the special screw by using the special tool.

SERVICE POINTS OF INSTALLATION E37HDAI 12. INSTALLATION OF STEERING COLUMN AND SHAFT ASSEMBLY

Never loosen the clamp bolt (arrow mak in the figure) when installing the steering column and shaft assembly to the body side.

Before installing the bolt, apply specified sealant to the toeboard mounting hole.

Page 16

E37HE--

Page 17

Page 18

37-16-2

NOTES

Page 19

LUBRICATION, SEALING AND ADHESION POINTS

Page 20

SERVICE POINTS OF DISASSEMBLY E37HEAR 17 REMOVAL OF CLEVIS PIN

Knock the clevis pin out from the inside of the steering column.

MB990628 13E0024

© Mitsubishi Motors Corporation Dec. 1993

24 REMOVAL OF SNAP BING

33. REMOVAL OF STEERING LOCK BRACKET/34. STEER-ING LOCK CYLINDER

If it is necessary to remove the steering lock cylinder, use a hacksaw to cut the special bolts at the steering lock bracket side.

INSPECTION

E37HGAN

F37HHAP

Check the steering shaft and joint for play or faulty operation.

SERVICE POINTS OF REASSEMBLY 36. INSTALLATION OF CLAMP/35. COVER ASSEMBLY

Install the clamp to the steering column assembly as shown in the illustration.

34, INSTALLATION OF STEERING LOCK CYLINDER/33. STEERING LOCK BRACKET/32. SPECIAL BOLT

  • (1) When installing the steering lock and steering lock bracket to the column tube, temporarily install the steering lock in alignment with the column boss.
  • (2) After checking that the lock works properly, tighten the special bolts until the head twists off.
Caution

The steering lock bracket and bolts must be replaced with new ones when the steering lock is installed.

PWJE9086-E

Page 21

24. INSTALLATION OF SNAP RING

27.5–29.5 mm (1.083–1.161 in.)

______________________________________

When installing, align the mating mark (yellow line) on the steering shaft lower with the groove on the steering shaft upper yoke.

19. INSTALLATION OF LOWER PIPE/18. CLAMP

  • (1) Insert the lower pipe into the steering column lower until the bearing touches the snap ring on the steering shaft lower.
  • (2) Install the clamp in the position shown in the illustration.

Snap ring

17. INSTALLATION OF CLEVIS PIN

Insert the clevis pin by tapping it until the protruding length is as shown in the illustration.

1. INSTALLATION OF JOINT ASSEMBLY

When installing, align the groove on the joint yoke with the mating mark (yellow line) on the steering shaft lower.

© Mitsubishi Motors Corporation Feb. 1991

Page 22

MANUAL STEERING GEAR BOX

REMOVAL AND INSTALLATION

SERVICE POINTS OF REMOVAL

  • 3. DISCONNECTION OF RELAY ROD AND PITMAN ARM Caution
    • 1. Use cord to bind the special tool closely so it will not become separated.
    • 2. The nut should be loosened only, not removed.

SERVICE POINTS OF INSTALLATION 6. INSTALLATION OF STEERING GEAR BOX

E37JDAC

E37JBAD

Install the steering gear box to the frame after inserting the steering gear box mainshaft into the joint assembly.

E37JA--

Page 23
DISASSEMBLY AND REASSEMBLY

© Mitsubishi Motors Corporation Feb. 1991

PWJE9086

E37JE--

Page 24

SERVICE POINTS OF DISASSEMBLY 2. REMOVAL OF PITMAN ARM

E37JFAE

4. REMOVAL OF TOP COVER AND CROSS-SHAFT AS-SEMBLY

With the mainshaft and cross-shaft placed in the straight ahead position, tap the bottom of cross-shaft with a plastic hammer to take out the cross-shaft together with the top cover.

INSPECTION

E37JGAB

  • Check the ball nut for smooth rotation and axial play.
  • Check the bearing for seizure and discolouration, and the rough rolling surface of ball nut raceway.

SERVICE POINTS OF REASSEMBLY 19./18. INSTALLATION OF OIL SEALS

E37JHAE

© Mitsubishi Motors Corporation Feb. 1991

13. INSTALLATION OF END COVER

Standard value: 0.35–0.55 Nm (3.5–5.5 kgcm, 3–5 in.lbs.)

  • (1) If the measured value is not within the standard value, make adjustment by changing the adjusting shim(s).
  • (2) Remove the shim(s) to increase starting torque. Add shim(s) to reduce starting torque.

PWJE9086

Page 25

8. INSTALLATION OF ADJUSTING SPACER

(1) Install the adjusting spacer to the adjusting bolt and measure the cross-shaft axial play.

Standard value: 0.05 mm (0.0020 in.) or less

(2) If the measured value is not within the standard value, make adjustment by changing the adjusting spacer.

4. INSTALLATION OF TOP COVER AND CROSS-SHAFT ASSEMBLY

Lubricate the bearings and the gear teeth of each shaft.

(1) Move the ball nut of the mainshaft to the centre position (straight-ahead position).

Caution

Use care not to damage the cross-shaft oil seal.

  • (2) Turn the adjusting bolt 2 or 3 times until the tooth surfaces are in contact.
  • (3) Measure the mainshaft total starting torque.
    • Secure the flange part of the gear box housing in a vise.
    • Measure the mainshaft total starting torque by using the special tools.
Standard value: 0.65–0.85 Nm (6.5–8.5 kgcm, 5.7–7.3 in.lbs.)

NOTE

The mainshaft should rotate smoothly across the entire range.

  • ③ If the measured value is not within the standard value, adjust by turning the adjusting bolt in or out.
  • If it can not be adjusted to the standard value by turning the adjusting bolt, check the following points.
    • A. Cross-shaft eccentricity due to improperly installed top cover
    • B. Cross-shaft needle roller bearing damaged
    • C. End cover improperly installed

2. INSTALLATION OF PITMAN ARM

Install the pitman arm to the gear box with the mating marks aligned.

© Mitsubishi Motors Corporation Feb. 1991

Page 26

Pre-removal Operation

POWER STEERING GEAR BOX

Draining of the Power Steering Fluid (Refer to P.37-10)

CAUTION: SRS

For vehicles with SRS, before removal of steering gear box, refer to GROUP 52B-SRS, center front wheels and remove ignition key. Failure to do so may damage SRS clock spring and render SRS system inoperative, risking serious driver injury.

SERVICE POINTS OF REMOVAL

5. DISCONNECTION OF RELAY ROD AND PITMAN ARM Caution

  • 1. Use cord to bind the special tool closely so it will not become separated.
  • 2. The nut should be loosened only, not removed.

SERVICE POINTS OF INSTALLATION E37NDAAa 8. INSTALLATION OF POWER STEERING GEAR BOX

Install the power steering gear box to the frame after inserting the power steering gear box mainshaft into the joint assembly.

E37NRAD

Page 27

DISASSEMBLY

E37NF--

Page 28

SERVICE POINTS OF DISASSEMBLY 2. REMOVAL OF PITMAN ARM

E37NGAE

4. REMOVAL OF SIDE COVER AND CROSS-SHAFT AS-SEMBLY

With the mainshaft and cross-shaft placed in the straight ahead position, tap the bottom of the cross-shaft with a plastic hammer to take out the cross-shaft together with the side cover.

10. REMOVAL OF Y-PACKING

Do not remove the Y-packing at the rear of the needle bearing unless there is fluid leakage from the threads of the adjusting bolt. If there is leakage, replace the Y-packing with a new one.

13. REMOVAL OF RACK PISTON

Remove the rack piston from the mainshaft by turning it counterclockwise.

Caution

Be careful not to lose the 26 balls inside the rack piston.

19. REMOVAL OF LOCK NUT

© Mitsubishi Motors Corporation Feb. 1991

20. REMOVAL OF MAIN SHAFT/21. BEARING RACE/22. CAGE/23. BALL

When removing the main shaft, remove it while pressing the bearing race so that the balls do not come out.

PWJE9086

Page 29

27. REMOVAL OF BEARING/28. OIL SEAL

Using a socket, remove the oil seal and the bearing from the valve housing simultaneously.

INSPECTION E37NHAD BACKLASH BETWEEN BALL GROOVE OF RACK PISTON AND BALLS

Set the rack piston to the position shown in the figure, and then measure the backlash by using a dial gauge.

Limit: 0.05 mm (0.0020 in.)

PITMAN ARM BALL JOINT STARTING TORQUE Standard value: 1–3 Nm (10–30 kgcm, 9–26 in.lbs.)

Page 30

REASSEMBLY

Page 31

LUBRICATION AND SEALING POINTS

SERVICE POINTS OF REASSEMBLY

E37NJAE

2. INSTALLATION OF Y-PACKING/3. OIL SEAL

  • (1) Install the Y-packing facing the direction shown in the illustration.
  • (2) Use the special tool to press-fit the oil seal to the gearbox housing so that it faces in the direction shown in the illustration.

4. INSTALLATION OF OIL SEAL

Apply a coating of the specified fluid to the outside of the oil seal. Using the special tools, press the oil seal into the valve housing.

Specified fluid: Automatic transmission fluid DEX-RON or DEXRON II

PWJE9086

Page 32

Seal ring

5. INSTALLATION OF BEARING

Apply a coating of the specified fluid to the outside of the bearing. Using the special tools, press the oil seal into the valve housing.

Specified fluid: Automatic transmission fluid DEX-RON or DEXRON II

8. INSTALLATION OF SEAL RING

When installing seal ring, press firmly into valve groove.

  • 9. INSTALLATION OF CAGE/10. BALL/11. BEARING RACE/12. MAIN SHAFT
    • (1) Apply specified fluid to valve body.
Specified fluid: Automatic transmission fluid DEXRON or DEXRON II

  • (2) Wrap vinyl tape around the serrated part so that the oil seal won't be damaged when the valve body is installed to the valve housing.
  • (3) Mount the valve body to the valve housing.
  • (4) Align the cage's hole and the channel in the main shaft, and insert two or three balls.
  • (5) Insert the remainder of the balls into the cage's hole while pressing the ball with the bearing race.

(6) When installing the main shaft, connect it to the valve housing while pressing the bearing race so that the balls do not come out.

13W704

© Mitsubishi Motors Corporation Feb. 1991

WJE9086

Page 33

MB99136

13. INSTALLATION OF LOCK NUT

Using the special tool, tighten carefully until the lock nut contacts the bearing race.

  • ADJUSTMENT OF MAIN SHAFT AXIAL PLAY
    • (1) Adjust the play by tightening the lock nut gradually so that the mainshaft axial play will meet the range of standard value.

Standard value: 0.03 mm (0.0012 in.) or less

MB991394

Dial gauge

  • (2) Use a punch to crimp the circumference of the lock nut so as to secure the lock nut.
  • (3) Check to be sure that the mainshaft rotates smoothly.
16. INSTALLATION OF RACK PISTON

  • (1) Install the rack piston until it comes in contact with the edge of the main shaft.
  • (2) Rotate the main shaft to align the ball raceway with the 19-ball insertion hole.

NOTE

The balls must be inserted so that there is no clearance between the balls.

(3) Set the remaining seven balls in the circulator, and install the circulator to the rack piston.

© Mitsubishi Motors Corporation Feb. 1991

37-31

Page 34

20. INSTALLATION OF VALVE HOUSING

(1) Apply specified automatic transmission fluid to the seal ring of the rack piston.

Specified fluid: Automatic transmission fluid DEXRON or DEXRON II

  • (2) Insert the valve housing.
  • (3) Rotate the main shaft until the rack piston moves to the neutral position (center).
24. INSTALLATION OF ADJUSTING PLATE/25. ADJUST-ING BOLT

  • (1) Install the adjusting plate so that the beveled part is facing downward.
  • (2) Using a thickness gauge, measure the clearance between the adjusting bolt and cross-shaft.

Standard value: 0-0.05 mm (0-0.002 in.)

(3) If the clearance is exceeded the standard value, replace with a suitable adjusting plate.

26. INSTALLATION OF CROSS-SHAFT/27. ADJUSTING BOLT LOCK NUT

Install the cross-shaft to the side cover, and then temporarily tighten the adjusting bolt lock nut.

29. INSTALLATION OF SIDE COVER AND CROSS-SHAFT ASSEMBLY

Install the side cover assembly (with the cross-shaft) to the gear box.

NOTE

Apply specified automatic transmission fluid to the teeth and shaft areas of the rack piston, and apply multipurpose grease to the oil seal lip.

Specified fluid: Automatic transmission fluid DEX-RON or DEXRON II
Caution

Do not rotate the side cover during installation. Take care not to damage the cross-shaft oil seal.

© Mitsubishi Motors Corporation Feb. 1991

Page 35

ADJUSTMENT OF MAIN SHAFT TOTAL STARTING TOROUE

(1) While turning the adjusting bolt, measure the main shaft total starting torque by using the special tool.

Standard value: 0.45-1.25 Nm (4.5-12.5 kgcm, 4-11 in.lbs.)

Caution

Adjust by turning the adjusting bolt so that the starting torque at the centre position of the rack piston is approximately 0.2 Nm (2 kgcm, 2 in.lbs.) higher than the values at the both ends of the rack piston.

(2) Tighten the adjusting bolt lock nut to the specified torque

31 INSTALLATION OF PITMAN ARM

Install the pitman arm to the gear box with the mating marks aligned.

37.33

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Page 37

Connect the pressure hose so that its slit part contacts the oil pump's guide bracket.

© Mitsubishi Motors Corporation Jun. 1994

Page 38

37-34-2

NOTES

Page 39

DISASSEMBLY AND REASSEMBLY < Except 2800D>

E37RE--

Page 40

SERVICE POINTS OF DISASSEMBLY 5. REMOVAL OF SNAP RING

E37RFAH

37-36

INSPECTION

E37RGAH

  • Check the flow control valve for clogging.
  • Check the pulley assembly for wear or damage.
  • Check the groove of rotor and vane for "Stepped" wear. Check the contact surface of cam ring and vanes for
    • "Stepped" wear.
  • Check the vanes for damage.

CLEARANCE BETWEEN SHAFT AND PUMP BODY

  • (1) Place the dial gauge against the end of the pulley assembly's shaft.
  • (2) Move the pulley assembly up and down and measure the play.
    • Limit: 0.1 mm (0.004 in.)

GAP BETWEEN VANE AND ROTOR GROOVE Limit: 0.06 mm (0.0024 in.)

SERVICE POINTS OF REASSEMBLY 27. INSTALLATION OF OIL SEAL

E37RHAL

© Mitsubishi Motors Corporation Feb. 1991

Page 41

26./23./15./11./9. INSTALLATION OF O-RINGS

Apply specified fluid on O-rings to install.

No. I.D.×Width mm (in.)
1 11×1.9 (0.433×0.075)
2 13×1.9 (0.512×0.075)
3 17.8×2.4 (0.701×0.094)
4 13.5×1.5 (0.531×0.059)
5 3.8×1.9 (0.150×0.075)
6 16.8×2.4 (0.661×0.094)

16. INSTALLATION OF SPRING

Fit the spring to the oil pump body with the largerdiameter end at the terminal assembly side.

8. INSTALLATION OF SIDE PLATE

Line up the dowel pin hole of the side plate with the dowel pin of the pump body when installing the side plate.

6. INSTALLATION OF ROTOR

Install the rotor to the pulley assembly so that the rotor's punch mark is at the pump cover side.

© Mitsubishi Motors Corporation Feb. 1991

Page 42

Snap rind

13N0183

5. INSTALLATION OF SNAP RING

After installation of the snap ring, lift the rotor and check that the snap ring has entered the countersunk part.

13W572

4. INSTALLATION OF CAM RING

Install the cam ring with the punch mark facing the side plate.

3. INSTALLATION OF VANES

Install the vanes on the rotor, paying close attention to the installation direction.

Page 43

DISASSEMBLY AND REASSEMBLY <2800D>

Page 44

37-38-2

NOTES

Page 45

STEERING HOSES

E37TA--

37-39

Page 46

Page 47

© Mitsubishi Motors Corporation Jun. 1994

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Page 49

Page 50

STEERING LINKAGE REMOVAL AND INSTALLATION

E37VA--

Page 51

13E0022

© Mitsubishi Motors Corporation Feb. 1991

SERVICE POINTS OF REMOVAL

E37VBAD

  • 1. DISCONNECTION OF TIE ROD ASSEMBLY
    • Use cord to bind the special tool closely so it will not become separated.
    • 2. The nut should be loosened only, not removed.

7. REMOVAL OF RELAY ROD

<Pitman arm side>

Caution

  • 1. Use cord to bind the special tool closely so it will not become separated.
  • 2. The nut should be loosened only, not removed.

<ldler arm side>

Hammer the special tool to remove the relay rod from the idler arm.

Caution

The nut should be loosened only, not removed.

9. REMOVAL OF IDLER ARM

Use a bench press to remove the idler arm.

Caution The nut should be loosened only, not removed.

INSPECTION BALL JOINT STARTING TORQUE

E37VCAB

Standard value:

Tie rod end 1–3 Nm (10–30 kgcm, 9–26 in.lbs.) Idler arm 0.5–2.0 Nm (5–20 kgcm, 4–17 in.lbs.)

PWJE9086

Page 52

IDLER ARM STARTING TORQUE

Standard value: 0.3-2.0 Nm (3-20 kgcm, 3-17 in.lbs.) [2.3-15.4 N (0.23-1.54 kg, 0.5-33.9 lbs.)]

SERVICE POINTS OF INSTALLATION E37VFAD

4. INSTALLATION OF PIPE/3. TIE ROD END, INNER/2. TIE ROD END, OUTER

(1) Install the tie rod assembly so that the dimension is as shown in the diagram.

NOTE

The illustration at left shows the left-side tie rod assembly. The right-side tie rod assembly is symmetrical to the left-side assembly.

(2) Adjust the pipe so that the difference in dimensions a and b is 1.5 mm (0.059 in.) or less, and then provisionally tighten the lock nut.

NOTE

Fully tighten the lock nut after the tie rod assembly is installed to the body and the toe-in has been adjusted.

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