Rear Brake Disc Thickness Check; Rear Brake Disc Runout Check; Rear Brake Disc Run-Out Correction - Mitsubishi 1989-1993 GALANT Service Manual

SERVICE
8. Check brake drag torque as follows.

REAR BRAKE DISC THICKNESS CHECK

1. Remove dirt and rust from brake disc surface.
2. Measure disc thickness at 4 locations or more.
REAR BRAKE DISC RUN-OUT
1. Remove the caliper support, raise the caliper assembly,
2. Place a dial gauge approximately 5 mm (.2 in.) from the
REAR BRAKE DISC RUN-OUT CORRECTION MFXAA
1. If the run-out of the brake disc is equivalent to or exceeds
2.
TSB Revision
Procedures
(2) Stop engine.
(3) Turn brake disc forward 10 times.
(4) Check brake drag torque with spring scale.
If the difference between brake drag torque and hub
torque exceeds the standard value, disassemble piston
and clean piston. Check for corrosion or worn piston seal,
and check the sliding condition of the lock pin sleeve and
guide pin sleeve.
Standard value: 70 N (15.4 Ibs.) or less
Nm (3 ft.lbs.)J or less
Limit: 8.4 mm (.331 in.)
Replace the discs and pad assembly for both sides left
and right of the vehicle if they are worn beyond the
specified limit.
and secure it by using a wire, etc.
outer circumference of the brake disc, and measure the
run-out of the disc.
Limit: 0.08 mm (.0031 in.)
N O T E
To secure the disc to the hub, tighten the nuts.
the limit specification, change the phase of the disc and
hub, and then measure the run-out again.
NOTE
The procedures for checking by changing the installation
phase of the disc are the same as those for the front brake
discs. (Refer to P.35-64.)
If the problem cannot be corrected by changing the phase
of the brake disc, replace the disc.