Mitsubishi 3000GT 1991 Service Manual page 774

SERVICE BRAKES
7. Using the following procedure, check the brake drag
8. If the difference between the brake drag force and hub
INSPECTION OF FRONT BRAKE DISC THICKNESS
1. Remove dirt and rust off the surface of the brake disc.
2. Measure the thickness of disc at four or more places of the
3.
FRONT BRAKE DISC RUN-OUT CHECK
2. Place a dial gauge approximately 5 mm (.2 in.) from the
TSB Revision
torque.
for five seconds. [Approx. 200 N (44 Ibs.)]
rotating force exceeds the standard value, disassemble the
piston and check the piston sliding surfaces for dirt and
rust, piston seal for deterioration, and lock pin and guide pin
for sliding motion.
Standard value: 70 N (15.4 Ibs.) [4 Nm (3 ft.lbs.)] or less
pad contacting surface.
Standard value: <FWD>
Limit: <FWD>
If the wear exceeds the limit even at one place, replace the
right and left discs and brake pads as a set.
wire, etc.
outer circumference of the brake disc, and measure the
run-out of the disc.
Limit: 0.10 mm (.004 in.) or less
NOTE
Secure the disc to the hub with wheel nuts.
,
24.0 mm (.94 in.)
30.0 mm (1.18 in.)
22.4 mm (.88 in.)
28.4 mm (1.12 in.)