1991 MITSUBISHI 3000GT service

STEERING - Steering Wheel and Shaft
DISASSEMBLY AND REASSEMBLYM37GE- -
Disassembly steps
1. Boot2. Cover assemblyI)* 3. Bearing4. Joint assembly*+ 5. Special boltsl * l a6. Steering lock bracket+* I)* 7. Steering lock cylinder8.Steering column assembly
13A0170
Steering lock cylinder13FOO51
SERVICE POINTS OF DISASSEMBLYM37GFAS
6. REMOVAL OF STEERING LOCK BRACKET / 7. STEER-
ING LOCK CYLINDERIf it is necessary to remove the steering lock cylinder, use a
hacksaw to cut the special bolts at the steering lock bracket
side.
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37A-16STEERING - Steering Wheel and Shaft13E;O613FOO5
inyl tape13NOOl;
INSPECTIONM37GGAKl Check the steering shaft for play and round movement.
l Check the joints for play, damage, or rough movement.
l Check the joint bearing for wear and damage.
l Check the dust shield for damage.
SERVICE POINTS OF REASSEMBLYM37GHBE7. INSTALLATION OF STEERING LOCK CYLINDER
/ 6.
STEERING LOCK BRACKET / 5. SPECIAL BOLT
(1) When installing the steering lock cylinder 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.
CautionThe steering lock bracket and bolts must be re-
placed with new ones when the steering lock
cylinder is installed.3. INSTALLATION OF BEARING
(1) Fill the inside of the bearing with multipurpose grease.
(2) Install the bearings to the shaft on the joint assembly.
(3) Wrap vinyl tape approximately one and one-half times
around the concave circumferences of the bearings,
and then press fit the bearings into the cover assembly.
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STEERING- Power Steering Gear Box
POWER STEERING GEAR BOX
/REMOVAL AND INSTALLATION37A-17
M37PA- -
i
i/
Pre-removal ODerationl Draining of the Power Steering Fluid
(Refer to P.37A-9.)l Removal of Front Exhaust Pipe(Refer to GROUP 15 - Exhaust Pipe1 and Main Muffler.)1l Removal of Transfer Assembly
(Refer to GROUP 22 -Transfer.)
Post-installation Operationl Installation of Transfer Assembly
(Refer to GROUP 22 -Transfer.)
l Installation of Front Exhaust Pipe(Refer to GROUP 15 - Exhaust Pipeand Main Muffler.)l Supplying of the Power Steering Fluid
(Refer to P.37A-9.)l Bleeding of the Power Steering Fluid Line
(Refer to P.37A-IO.)l Checking of Steering Wheel Position with
Wheels Straight Ahead
l Adjustment of the Front Wheel Alignment
(Refer to GROUP 33A-Service AdiustmeniProcedures.)Removt
50 Nm
c40 Nm
29 ftlbs.
/60-70
Nm43 - 51ft.lbs.60-70Nm43 - 51ft.lbs.
36
ft.lb
35 Nm
25 ft.lbs.
15 Nm
11 ftlbs.
18 Nm
lal steps
1. Joint assembly and gear box connecting bolt
2. Cotter pin
3. Tie-rod end and knuckle connecting nut
4. Left member
5. Right member
6. Stabilizer bar bracket
7. Connection of steering gear box with 4WS
oil line
8. Clamp
9. Gear box assemblv
*a 10. Mounting rubber70 Nm51 ftlbs.13FOOE.5TSB Revision

37A-18
STEERING - Power Steering Gear Box
MB991 006-01\l\
13R017
8 Mounting clamp13R0077
SERVICE POINTS OF REMOVALM37PBAI3. DISCONNECTION OF TIE-ROD END
Using the special tool, disconnect the tie rod from the
,,
knuckle.LJ9. REMOVAL OF GEAR BOX ASSEMBLY
(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.
CautionWhen removing the gear box, pull it out carefully
and slowly to avoid damaging the boots.
INSPECTIONM37PCAFGEAR 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
- 1.3 Nm (5 - 11 in.lbs.)
NOTEMeasure 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
starting torque again.
If the total pinion starting 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.
(2) Measure the tie rod swing resistance with a spring balance
Standard value: 8
- 18 N (1.8 - 4.0 Ibs.)
[2 - 5 Nm (17 - 43 in.lbs.)](3) If the measured value exceeds the standard value, replace
tie rod assembly.
NOTEEven if the measured value is below the standard value, the
tie rod which swings smoothly without excessive play may
be used.
SERVICE POINTS OF INSTALLATIONM37PDAE10. INSTALLATION OF MOUNTING RUBBER
/ 9. GEAR
BOX ASSEMBLYWhen installing the mounting rubber, align the projection of
the mounting rubber with the indentation in the crossmem-
ber to install the gear box.
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STEERING - Power Steering Gear Box37A-21 ~'13K588
SERVICE POINTS OF DISASSEMBLYM37PFAN3. REMOVAL OF DUST SHIELD
Remove the dust shield from the tie rod end.
5. REMOVAL OF BELLOWS BANDS
Using a screwdriver or similar tool, loosen and then remove
Ithe boot retaining band.
7. REMOVAL OF TAB WASHER
Unstake the tab washer which fixes the tie rod and rack
with a chisel.
11. REMOVAL OF END PLUGDisconnect end plug caulking and remove end plug.
14. REMOVAL OF RACK SUPPORT COVERUsing the special tool, remove the rack support cover from
Ithe gear box.
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37A-24
STEERING - Power Steering Gear Box
/Oil seal
Back-up washer13A0181L
GuideNeedle roller
bearmg13R0547
MB990927-01
&
13R0378
Vent hole
SERVICE POINTS OF REASSEMBLYM37PHAW
34. INSTALLATION OF BACK-UP WASHER / 33. OIL SEAL(1) Apply a coating of the specified fluid to the outside of
the oil seal.
LJSpecified fluid: MITSUBISHI PLUS
ATF/Automatictransmission fluid “DEXRON” or
“DEXRON II”
(2) Using a tool, press the back-up washer and the oil seal
into the rack housing to the specified position (whereIthe upper surface of the press-in guide coincides with
the stepped part of the press-in tool).
32. INSTALLATION OF NEEDLE ROLLER BEARINGI(1) Apply specified fluid to housing, bearing and oil seal
Ipress fitting surface.
ISpecified fluid: MITSUBISHI PLUS ATF/Automatictransmission fluid “DEXRON” or
I“DEXRON II”(2) Press fit needle roller bearing.
CautionIPress fit straight as valve housing is aluminium.
31. INSTALLATION OF BALL BEARINGPress fit ball bearing.
28. INSTALLATION OF OIL SEAL
/ 27. O-RING
(1) Apply a coating of the specified fluid to the outside of
the oil seal and O-ring.
Specified fluid: MITSUBISHI PLUS
ATF/Automatictransmission fluid “DEXRON” or
“DEXRON II”
(2) Press fit oil seal until it touches rack bush end.
26. INSTALLATION OF RACK(1) Apply a coating of multipurpose grease to the rack teeth
face.
Caution
Do not close the vent hole in the rack with grease.13K583(
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37A-28
STEERING - Power Steering Oil Pump
POWER STEERING OIL PUMP
REMOVAL AND INSTALLATION
I
M37RA-.
Pre-removal Operationl Draintng the Power Steenng Flurd
22 Nm
16 ft.lbs.
7
Post-installation Operationl Supplying of the Power Steering
Fluid
l Adjusting V-belt Tension(Refer to P.37A-8.)l Bleeding the Power Steering
Fluid Line (Refer to P.37A-10.)l Checking of the Oil Pump
Pressure
(Refer to P.37A-11.)Removal steps
31 ft.lbs.
1. V-belt
2. Suction hose
** 3. Pressure hose
4. O-ring
5. Pressure switch connector
6. Oil pump
7. Oil pump bracket
8. Tensioner pulley
43 Nm31 fklbs.
13N0029
Ij
INSPECTIONM37RCACl Check the V-belt for cracks.
l Check the pulley assembly for uneven rotation.
SERVICE POINT OF INSTALLATIONM37ROAL3. INSTALLATION OF PRESSURE HOSE
Connect the pressure hose so that its slit part contacts the
oil pump’s guide bracket.
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37A-30STEERING - Power Steering Oil Pump
13R0433
Connector
13K752
Terminal assembly
Side plate613N0059
Suction connector
mounting portion
of oil pump body
13K75313NOOSi
13FOO50
INSPECTIONM37RGAM
l Check the flow control spring for wear.
lCheck the shaft of the pulley for play and round movement.
l Check the groove of rotor vane for “stepped” wear.
l Check the contact surface of cam ring and vanes for
“stepped” wear.
l Check the vanes for breakage.
CHECK OF GAP BETWEEN VANE AND ROTOR GROOVEInstall vane to rotor groove as illustrated. Measure the gap
between vane and rotor groove with thickness gauge.
Limit: 0.06 mm
(.0024 in.)
M37RHBISERVICE POINTS OF REASSEMBLY25. 21.
13.9.7.INSTALLATION OF O-RINGSApply specified fluid on O-rings to install.
No.I.D. x Width
111 x1.9 (.433 x ,075)
213x1.9(.512 x ,075)
317.8 x 2.4
(.701 x ,094)
413.5x1.5
(.531 x .059)
53.8 x 1.9 (. 150 x ,075)
616.8 x 2.4
i.661 x ,094)
mm (in.)
I1
I
I
I
I
t i
14. INSTALLATION OF SPRINGFit the spring to the oil pump body with the larger-diameter
end at the terminal assembly side.
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