Toyota Celica Supra 1986 Service And Repair Manual page 504

Shim
h
___ J
pearance
BRAKE SYSTEM - Rear Brake
BR·27
.
....,
.....
7. REMOVE REAR SHOE
(a) Slide out the rear shoe.
(b) Disconnect t he parking brake cable from the parking
brake shoe lever.
INSPECTION AND ADJUSTMENT OF PARKING
BRAKE COMPONENTS
1. MEASURE BRAKE DRUM INSIDE DIAMETER
Standard inside diameter : 167 mm (6.57 i n.)
Maximum inside diameter. 168 mm (6.61 in.)
If the drum is scored or worn. the brake drum may
be
lathed to the maximum inside diameter.
2. MEASURE BRA KE SHOE LINING THICKNESS
Standard thicl<ness : 2.0 mm (0.079 in.)
Minimum thickness: 1.0 mm (0.039 i n.)
If the shoe lining is less t han minimum. replace tho parking
brake shoes.
NOTE: In order to maintain effective brakes, replace all
of the shoes if the thickness of any one is not within
soecification.
3. INSPECT REAR PARKING BRAKE LINING AND
DRUM FOR PROPER CONTACT
Replace the brake or lathe the brake disc as necessary.
4. MEASURE CLEARANCE BETWEEN PARKI NG BRAKE
SHOE AND LEVER
Using a feeler gauge, measure the clearance.
Standard clearance: 0- 0.35 mm (0 - 0.0138 in.)
If the clearance is not within specification. replace
the
shim with one of the correct size.
Thickness
mm (in.t
Thickness
mm
{in.
I
0.3
(0.012) 0.9
(0.035)
0.6 (0.024)