Mitsubishi 3000GT 1991 Service Manual page 775

SERVICE BRAKES -
FRONT BRAKE DISC RUN-OUT CORRECTION
1. If the run-out of the brake'disc is equivalent to or exceeds
2. If the run-out cannot be corrected by changing the phase of
REAR DISC BRAKE PAD CHECK AND REPLACE-
MENT
1. Check brake pad thickness through caliper body check port.
2. Loosen the parking brake cable (from the vehicle interior),
3. Remove lock pin. Lift caliper assembly and retain with
TSB Revision
Service Adjustment Procedures
the limit specification, change the phase of the disc and
hub, and then measure the run-out again.
wheel stud on the side at which run-out is greatest.
(2) Remove the brake disc, and then place a dial gauge as
shown in the illustration; then move the hub in the axial
direction and measure the play.
Limit: 0.05 mm (.002 in.)
If the play is equivalent to or exceeds the limit, replace
the front hub unit bearing.
(3) If the play does not exceed the limit specification, and
then check the run-out of the brake disc once again.
Mount the brake disc on the position dislocated from
the chalk mark.
the brake disc, replace the disc.
Standard value: 10.0 mm (39 in.)
Limit: 2.0 mm (08 in.)
Caution
1. When the limit is exceeded, replace the pads at both
sides, and also the brake pads for the wheels on the
opposite side at the same time.
2. If there is a significant difference in the thicknesses
of the pads on the left and right sides, check the
sliding condition of the piston, lock pin sleeve and
guide pin sleeve.
and disconnect the parking brake end installed on the rear
brake assembly.
wires.
Caution
Do not smear special grease on lock pin or make it
dirty.