Mitsubishi 3000GT Service Manual page 899

SERVICE BRAKES - On-vehicle Service
REAR BRAKE DISC THICKNESS CHECK
1. Remove dirt and rust from brake disc surface.
2. Measure disc thickness at 4 locations or more.
Standard value:
Limit:
Replace the discs and pad assembly for both sides left
and right of the vehicle if they are worn beyond the speci-
fied limit.
REAR BRAKE DISC RUN-OUT CHECK
1. Remove the rear brake assembly, and support it by a
wire, etc.
2. Place a dial gauge approximately 5 mm (.2 in.) from the
outer circumference of the brake disc, and measure the
run-out of the disc.
Limit: 0.08 mm (.0031 in.) or less
NOTE
Tighten nuts to secure the disc to the hub.
REAR BRAKE DISC RUN-OUT CORRECTION
1. If the run-out of the brake disc is equivalent to or exceeds
the limit specification, change the phase of the disc and
hub, and then measure the run-out again.
N O T E
The procedures for checking and changing the rear disc
phase are the same as those for the front brake discs.
Note, however, that the axial play (limit) in the hub differs.
(Refer to P.3556.)
Limit: <FWD> 0.05 mm (.002 in.)
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