Subaru XT 1988 Service Manual page 958

BRAKES
4-4
SERVICE DATA
ITEM
STANDARD SERVICE LIMIT
Front brake
Pad thickness (including back metal)
18 mm (0.71 in) 7.5 mm (0.295 in)
(Disc type)
Disc thickness
Ventilated disc Except XT6 18 mm (0.71 in)
16.0 mm (0.630 in)
XT6 22 mm (0.87 in)
20.0 mm (0.787 in)
Disc run-out
0.10 mm (0.0039 in)
Rear brake Inside diameter
180 mm (7.09 in)
182 mm (7.17 in)
(Drum type)
Lining thickness
4.5 mm (0.177 in)
1.5 mm (0.059 in)
Rear brake Pad thickness (including back metal) Except XT6
15 mm (0.59 in)
6.5 mm (0.256 in)
(Disc type) XT6
8.0 mm (0.315 in)
Disc thickness
10 mm (0.39 in) 8.5 mm (0.335 in)
Disc run-out
0.10 mm (0.0039 in)
Brake booster
Brake fluid pressure without engine running At brake pedal force 147 N (15 kg, 33 Ib):
392 kPa (4 kg/cm l , 57 psi)
At brake pedal force 294 N (30 kg, 66 Ib):
2,452 kPa (25 kg/cm l , 356 psi) (Except XT6)
1,569 kPa (16 kg/cml, 228 psi) (XT6)
Brake fluid pressure with engine running and
At brake pedal force 147 N (15 kg, 33Ib):
vacuum at 66.7 kPa (500 mmHg, 19.69 inHg)
4,904 kPa (50 kg/cm
2
,
711 psi) (Except XT6)
5,394 kPa (55 kg/cml, 782 psi) (XT6)
At brake pedal force 294 N (30 kg, 66 Ib):
6,375 kPa (65 kg/cml, 924 psi) (Except XT6)
9,317 kPa (95 kg/cml, 1,351 psi) (XT6)
Parking brake Lever stroke
3 to 4 notches1245 N (25 kg, 55 Ib)
Hill-holder Adjusting shim Thickness
0.6 mm (0.024 in)
(One shim increases an angle of approx. 0.5°.)
Part Number 725807000
RECOMMENDED BRAKE FLUID
FMVSS No. 116, fresh DOT3 or 4 brake fluid
a. Avoid mixing brake fluid of different brands to prevent the fluid performance from degrading.
b. When brake fluid is supplemented, be careful not to allow any dust into the reservoir.
c. Use fresh DOT3 or 4 brake fluid when replacing or refilling the fluid.
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