lock MITSUBISHI MONTERO 1998 Manual PDF
Page 206 of 1501
Terminal burned, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal corroded,
affecting performance .. A .. Require repair or replacement.
Terminal corroded, not
affecting performance .. 2 .. Suggest repair or replacement.
Terminal loose, affecting
performance ............ B .. Require repair or replacement.
Terminal loose, not
affecting performance .. 1 .. Suggest repair or replacement.
(1) - Inoperative includes intermittent operation or out of OEM
specification.
( 2) - Determine cause and correct prior to repair or
replacement of part.
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ROTORS
Determine the need to recondition based upon individual rotor
conditions that follow. Friction material replacement does not require
rotor reconditioning unless other justifications exist. DO NOT
recondition new rotors unless they are being pressed or bolted onto an
existing hub. It is not necessary to replace rotors in axle sets.
However, when replacing or reconditioning a rotor due to the
conditions that follow, you may suggest reconditioning of the other
rotor on the same axle to eliminate uneven braking behavior.
Determine the need to replace based upon the individual rotor
conditions that follow. Reconditioning is defined as machining and
block sanding, or block sanding only. Block sanding is defined as
using 120-150 grit sandpaper with moderate to heavy force for 60
seconds per side. Always wash rotors after servicing or before
installing.
ROTOR INSPECTION
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Condition Code Procedure
Corrosion affecting
structural integrity ... A ........ ( 1) Require replacement.
Cracked ................. B ............ Require replacement.
Hard spots .............. 2 ....... Suggest reconditioning or
replacement of rotor according
to OEM specifications.
Lateral runout (wobble)
exceeds OEM
specifications ......... B ............ Require re-indexing,
reconditioning, or replacement
according to specifications.
Measured thickness is less
than OEM discard
specifications ......... B ............ Require replacement.
Rotor thickness is less
than OEM "machine to"
specifications but thicker
than "discard at"
specifications, and the
rotor does not require
reconditioning ......... 1 ........ ( 2) Suggest replacement.
Rotor thickness will be
less than OEM "machine to"
specifications after
required
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BRAKE SYSTEM
1998 Mitsubishi Montero
1997-98 BRAKES
Mitsubishi - Disc & Drum
Diamante, Eclipse, Galant, Mirage, Montero, Montero Sport,
3000GT
INTRODUCTION
This article contains information on repair and service of
basic hydraulic brake system. If vehicle is equipped with anti-lock
brakes, also see appropriate ANTI-LOCK article.
DESCRIPTION
Brake system consists of a master cylinder, vacuum power
brake booster, proportioning valve and self-adjusting assembly.
Montero has a Load-Sensing Proportioning Valve (LSPV). All models are
equipped with front disc brakes and either rear disc or drum brakes.
Parking brake assembly activates rear brakes.
BLEEDING BRAKE SYSTEM
BLEEDING PROCEDURES
Bleed brakes whenever hydraulic lines are opened or pedal
feels spongy. Bleed system in appropriate sequence. See
BRAKE LINE BLEEDING SEQUENCE table. Use only DOT 3 or DOT 4 approved
fluid and DO NOT mix fluid types.
BRAKE LINE BLEEDING SEQUENCE
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Application Sequence
Diamante, Eclipse, Galant,
Mirage & 3000GT .................................... RR, LF, LR, RF
Montero ....................................... RR, LR, LSPV, RF, LF
Montero Sport ....................................... RR, LR, RF, LF
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ADJUSTMENTS
BRAKE PEDAL HEIGHT, FREE PLAY & CLEARANCE
1) To measure brake pedal height, pull up carpet under brake
pedal. Measure distance between floor board and middle of brake pedal
pad surface with brake pedal released. See BRAKE PEDAL HEIGHT
SPECIFICATIONS table.
2) To adjust pedal height, separate connector from stoplight
switch, and loosen switch lock nut. Back-off switch so it does not
contact brake pedal arm. Loosen master cylinder push rod lock nut.
Adjust brake pedal height by rotating master cylinder push rod until
brake pedal height is within specification.
BRAKE PEDAL HEIGHT SPECIFICATIONS
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Application Pedal Height: In. (mm)\
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Diamante, Eclipse,
Montero Sport & Galant .......................... 6.9-7.1 (175-181)\
Mirage ........................................... 6.4-6.6 (164-167)\
Montero .......................................... 7.3-7.5 (186-191)\
3000GT ........................................... 7.0-7.2 (177-182)\
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3) Tighten lock nut, and ensure brake pedal height is within
specification. Start engine to evacuate brake booster chamber. Stop
engine, and apply brake several times to remove vacuum from brake
booster.
4) Using hand pressure, depress brake pedal to measure free
play before resistance is felt. Free play distance for all models is
0.10-0.31" (3-8 mm). If distance is not within specification, it is
probably caused by excessive play between the brake pedal arm and the
clevis pin. Check and replace as necessary.
5) Start engine and apply 110 lbs. (490 N) of pressure to
brake pedal. With the carpet pulled back, measure the distance between
the brake pedal and the floorboard. If the distance is not 3.1-3.5"
(80-90 mm) check for air in brake hydraulic system, brake adjustment
or defective parking brake component or adjustment. Adjust or repair
as necessary.
LOAD-SENSING PROPORTIONING VALVE (LSPV)
Montero
1) Park vehicle on level surface. Remove excess weight from
vehicle. Make sure the lever is all the way towards the valve side.
Measure length of entire spring. See Fig. 1.
If spring length is not within specification, adjust spring
support until correct length is obtained. See LSPV SPRING LENGTH
table.
Fig. 1: Adjusting Load-Sensing Proportioning Valve Spring (Montero)
Courtesy of Mitsubishi Motor Sales of America.
BRAKE BOOSTER PUSH ROD
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times then switch the engine off.
2) Remove the master cylinder from the brake booster making
sure the push rod is not disturbed and the brake pedal is not
depressed after master cylinder removal.
3) Using a Vernier Caliper and Block Gauge, measure the
thickness of the block gauge and add .366" (9.3 mm) to the gauge
thickness and set the caliper to this dimension. See Fig. 4.
Fig. 4: Setting Caliper And Block Gauge (Diamante)
Courtesy of Mitshbishi Motor Sales of America.
4) Check the push rod position with vernier caliper set to
the calculated dimension. Specification range .362"-.370" (9.2-9.4
mm). See Fig. 5.
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(62-73 kPa) of vacuum applied to the brake booster.
PARKING/EMERGENCY BRAKE
NOTE: Adjust service brakes before adjusting parking brake.
Start engine, and apply brake pedal. Pull parking brake lever
with a force of 44-45 lbs. (196-200 N). Parking brake lever should
move up 3-5 notches on Diamante, Stealth and 3000GT, 4-6 notches on
Montero, and 5-7 notches on all other models. If adjustment is
necessary, turn adjusting nut located under console or at end of cable
rod. See Fig. 6.
Fig. 6: Adjusting Parking/Emergency Brake (Typical)
Courtesy of Mitsubishi Motor Sales of America.
REAR BRAKE SHOES
Fully release parking brake and depress brake pedal several
times to center shoes and adjust brake shoe clearance. Adjust shoes so
brake shoes lightly contact brake drum. Adjust parking brake, and
check pedal travel. Rotate brake drum to verify free movement.
STOPLIGHT SWITCH
Loosen lock nut, and adjust switch-to-pedal arm clearance to
0.02-0.04" (0.5-1.0 mm). Tighten lock nut. DO NOT depress master
cylinder push rod during stoplight switch adjustment.
TESTING
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pressure at specified pressure range (split point). See
SPLIT POINT PRESSURE SPECIFICATIONS table.
SPLIT POINT PRESSURE SPECIFICATIONS
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Application psi (kg/cm)
Diamante .......................................... 312-383 (22-27)\
Eclipse
Without ABS ...................................... 320-391 (22-27)\
With ABS ......................................... 320-391 (22-27)\
Galant ............................................. 462-533 (33-38)\
Mirage
2-Door ........................................... 320-392 (22-26)\
4-Door ........................................... 391-463 (27-32)\
Montero Sport .................................................. ( 1)
( 1) - Information not available from manufacturer.
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3) Continue depressing brake pedal, and check readings on
pressure gauges. See PROPORTIONING VALVE PRESSURE SPECIFICATIONS
table. If fluid pressures or split point are not within specification,
replace proportioning valve.
PROPORTIONING VALVE PRESSURE SPECIFICATIONS
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Application/ Inlet Pressure (1) Outlet Pressure
Model psi (kg/cm) psi (kg/cm)
Diamante ................... 1138 (80) ........... 676-747 (48-53\
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Eclipse
With ABS ................. 996 (69) ............ 569-640 (39-44\
)
Without ABS .............. 925 (61) ............ 462-533 (32-37\
)
Galant ..................... 996 (69) ................... 604 (43\
)
Mirage
2-Door ................... 1422 (98) ........... 566-680 (39-47\
)
4-Door ................... 1422 (98) ........... 619-733 (43-51\
)
3000GT
Hatchback ................ 906 (64) ............ 651-723 (46-51\
)
Convertible .............. 1117 (79) ........... 846-917 (60-65\
)
Montero Sport ................. ( 1) .......................... ( 1)
( 1) - Information is not available from manufacturer.
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REMOVAL & INSTALLATION
FRONT DISC BRAKE PADS
CAUTION: DO NOT remove or contaminate special grease coating on lock
pins.
Removal & Installation (Except 3000GT AWD)
1) Raise and support vehicle. Remove front wheels. Remove
lower lock pin or sleeve bolt. See Figs. 13-15. Lift caliper body
upward. Support caliper aside. Remove shims and pads from support
mounting. Remove pad clips.
2) If installing new pads, compress piston to bottom of bore.
Install retaining clips, pads and shims. Start engine and depress
brake pedal several times to expand caliper piston. Check brake fluid
level.
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Removal & Installation (3000GT AWD)
1) Raise and support vehicle. Remove front wheels. Remove
clip, brake pad retaining pins and spring. See Fig. 17. Remove shims
and pads from caliper. Keep track of location of shims for reassembly.
2) Compress caliper pistons fully in bores. Install shims on
brake pads. Install brake pads. Install spring clip, pad retaining
pins and clip. Start engine and depress brake pedal several times to
expand caliper piston. Check brake fluid level.
FRONT BRAKE CALIPER
Removal
Raise and support vehicle. Remove front wheels. Remove hose
clip from brake hose mount (if equipped). Disconnect brake hose from
caliper. Remove upper and lower caliper-to-steering knuckle bolts.
Lift caliper body upward. Remove caliper.
Installation
To install, reverse removal procedure. Tighten bolts to
specification. See TORQUE SPECIFICATIONS . Bleed brake system. See
BLEEDING BRAKE SYSTEM .
FRONT BRAKE ROTOR
Removal & Installation (Except Montero & Montero Sport)
Raise vehicle, and remove wheel(s). Remove caliper. See
FRONT BRAKE CALIPER . Slide rotor off hub. To install, reverse removal
procedure.
Removal (Montero & Montero Sport)
Raise and support vehicle. Remove brake caliper. See
FRONT BRAKE CALIPER . On 4WD, remove Remove bearing grease cap, snap
ring, shim, 6 bolts and drive flange from axle shaft. On 2WD remove 6
bolts and hub cover. Remove screw(s) from lock washer. Remove lock
washer. Remove lock nut using Lock Nut Wrench (MB990954). Remove hub
assembly. Place match marks on rotor and hub. Remove rotor from front
hub.
Installation
1) Install rotor on hub. Service wheel bearings and seals as
necessary. Install front hub assembly. Install lock nut, and tighten
it to 119 ft. lbs. (165 N.m). Loosen lock nut, and retighten it to 18
ft. lbs. (24 N.m). Loosen lock nut 30-40 degrees. Install lock washer
and screw(s).
2) On 2WD, reverse removal procedure for remaining
components. On 4WD, install drive flange, shim and snap ring. Using
feeler gauge, check axle shaft-to-hub clearance. Clearance should be
0.016-0.028" (0.41-0.71 mm). Use appropriate shim to obtain correct
clearance. Shim is located behind snap ring on end of axle shaft.
Recheck clearance if necessary. Install remaining components.
PARKING BRAKE SHOES
Removal & Installation (Diamante)
1) Raise and support vehicle. Remove rear wheels. Remove rear
disc brake caliper and rotor. If rotor removal is difficult, rotate
rotor until hole in rotor is upward. Back-off brake shoe adjustment
with a flat blade screwdriver through hole in rotor.
2) Disconnect rear speed sensor. See Fig. 9. Remove 4 bolts
and hub. Remove screw and shoe hold-down spring. Remove shoe. To
install, reverse removal procedure. Adjust brake shoe by turning
adjuster star wheel.
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rotors. See REAR BRAKE CALIPER .
2) On FWD models, remove grease cap, hub nut and hub. On AWD
models, disconnect rear axle from companion flange at hub. Remove axle
hub nut. Using slide hammer and Hub Adapter (MB991354), remove axle
from knuckle.
3) On all models, remove adjusting wheel spring. Remove shoe
hold-down cup, spring and pin. Note how shoe-to-anchor spring is
installed, and then remove adjuster and shoe-to-anchor spring. Remove
strut and return spring. Remove clip and shoe and lining assembly.
CAUTION: Shoe-to-anchor spring must be installed correctly for proper
functioning of parking brakes.
Installation
To install, reverse removal procedure. When installing shoe-
to-anchor spring, ensure spring is installed correctly. When
installing adjuster, install left adjuster with adjusting bolt facing
vehicle front and right adjuster with adjusting bolt facing vehicle
rear. On AWD, tighten companion flange nut to 188-217 ft. lbs. (260-
300 N.m).
REAR DISC BRAKE PADS
NOTE: Replace inner and outer pads at same time.
Removal
Raise and support vehicle. Remove rear wheels, and disconnect
parking brake cable. Remove lower lock pin bolt. Lift caliper body
upward. Using a wire, support caliper aside. Remove inner shims, anti-
squeak shim and pad assembly from support mounting. Remove pad clips.
Installation
Rotate piston to align notches in piston projection on back
of pads (if equipped). Install retaining clips, pad assembly, inner
shims and anti-squeak shim onto support mounting. Lower caliper body,
and install lock pin.
REAR BRAKE CALIPER
Removal
Raise and support vehicle. Remove rear wheels. Disconnect
brake hose from caliper. Cap end of brake line to prevent spillage.
Remove upper and lower caliper mounting bolts. Lift caliper body
upward. Remove caliper.
Installation
To install, reverse removal procedure. Tighten bolts to
specification. See TORQUE SPECIFICATIONS . Bleed brake system. See
BLEEDING BRAKE SYSTEM .
REAR BRAKE ROTOR
Removal & Installation
Raise and support vehicle. Remove rear caliper. See
REAR BRAKE CALIPER . Remove rotor. To install, reverse removal
procedure.
REAR BRAKE DRUM & SHOES
Removal
1) Raise and support vehicle. Remove wheels. Remove brake
drum from hub. If drum is difficult to remove, back-off shoe adjuster
Page 241 of 1501
Fig. 18: Exploded View Of Master Cylinder (Typical)
Courtesy of Mitsubishi Motor Sales of America.
TORQUE SPECIFICATIONS
TORQUE SPECIFICATIONS (DIAMANTE) \
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Application Ft. Lbs. (N.m)\
Brake Line Flare Nuts ...................................... 11 (15)\
Caliper Guide & Lock Pin Bolt
Front .................................................... 54 (73)\
Rear ..................................................... 24 (32)\
Caliper Mounting Bolts
Front .................................................... 66 (90)\
Rear ............................................... 36-43 (49-59)\
Rear Hub-To-Knuckle Bolts ............................ 55-65 (74-88)\
Wheel Lug Nut ....................................... 67-81 (90-110)\
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TORQUE SPECIFICATIONS (ECLIPSE) \
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Application Ft. Lbs. (N.m)\
Brake Line Flare Nuts ...................................... 11 (15)\
Caliper Guide & Lock Pin Bolt .............................. 54 (73)\
Caliper Mounting Bolts ..................................... 66 (90)\
Rear Hub-To-Knuckle Nut .................................... 60 (81)\
Wheel Lug Nut ..................................... 89-103 (120-140)\
INCH Lbs. (N.m)
Master Cylinder Mounting Nut .............................. 115 (13)\
Bleeder Screw ............................................... 71 (8)\
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Wheel Cylinder Bolt ........................................ 89 (10)\
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TORQUE SPECIFICATIONS (GALANT) \
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Application Ft. Lbs. (N.m)\
Brake Line Flare Nuts ...................................... 11 (15)\
Caliper Guide & Lock Pin Bolt .............................. 54 (73)\
Caliper Mounting Bolts ..................................... 66 (90)\
Rear Hub-To-Knuckle Nut .................................... 60 (81)\
Wheel Lug Nut ....................................... 67-81 (90-110)\
INCH Lbs. (N.m)
Master Cylinder Mounting Booster Nut ...................... 115 (13)\
Bleeder Screw ............................................... 71 (8)\
Wheel Cylinder Bolt ........................................ 89 (10)\
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TORQUE SPECIFICATIONS (MIRAGE) \
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Application Ft. Lbs. (N.m)\
Brake Line Flare Nuts ...................................... 11 (15)\
Caliper Guide Pin Bolt ..................................... 36 (49)\
Caliper Lock Pin Bolt ................................ 61-69 (83-93)\
Caliper Mounting Bolts .............................. 66-81 (90-110)\
Rear Wheel Bearing Nut ................................... 127 (172)\
Wheel Lug Nut ....................................... 67-81 (90-110)\
INCH Lbs. (N.m)
Master Cylinder Mounting Booster Nut ...................... 115 (13)\
Bleeder Screw ............................................... 71 (8)\
Wheel Cylinder Bolt ........................................ 89 (10)\
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TORQUE SPECIFICATIONS (MONTERO) \
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Application Ft. Lbs. (N.m)\
Brake Line Flare Nuts ...................................... 11 (15)\
Caliper Guide & Lock Pin Bolt
Front .................................................... 54 (73)\
Rear ..................................................... 32 (44)\
Caliper Mounting Bolt ...................................... 65 (88)\
Wheel Lug Nut ....................................... 72-87 (98-118)\
Rear Axle Bearing Retainer Nut ................... 145-173 (196-235)\
INCH Lbs. (N.m)
Master Cylinder Mounting Nut .............................. 115 (13)\
Bleeder Screw ............................................... 71 (8)\
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TORQUE SPECIFICATIONS (MONTERO SPORT) \
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Application Ft. Lbs. (N.m)\
Brake Line Flare Nuts ...................................... 11 (15)\
Caliper Guide & Lock Pin Bolt (Front) ...................... 54 (73\
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Caliper Mounting Bolt