Power Brake Unit; Front Brake (Disc) Inspection; Brake Judder Repair Hint - Mazda CX-7 2007 Workshop Manual

2007 mazda cx-7
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7. Install in the reverse order of removal.
8. After installation, add brake fluid, bleed the air, and inspect for fluid leakage. (See 04-11-3 AIR BLEEDING.)
9. Inspect the brake pedal. (See 04-11-4 BRAKE PEDAL INSPECTION.)
1
.
1
Vacuum hose
2
Snap pin
3
Clevis pin
End Of Sie

FRONT BRAKE (DISC) INSPECTION

WM: FRONT BRAKE (DISC)

Brake Judder Repair Hint

Description
Brake judder concern has the following three characteristics:
Steering wheel vibration
Steering wheel vibrates in the direction of its rotation. This characteristic is most noticeable when applying brakes
at a vehicle speed of 100— 140 km/h {62— 87 mph}.
Floor vibration
When applying brakes, the vehicle body shakes back and forth. The seriousness of shake is not influenced by
vehicle speed.
Brake pedal vibration
When applying brakes, a pulsating force tries to push the brake pad back. The pulsation is transmitted to the brake
pedal.
The following are the main possible causes of brake judder:
Due to an excessive runout (side-to-side wobble) of disc plate, the thickness of disc plate is uneven.
If the runout is more than 0.05 mm {0.002 in} at the position 10 mm {0.39 in} from the disc plate edge, uneven
wear occurs on the disc plate because of uneven pad/plate contact.
If the runout is less than 0.05 mm {0.002 in}, uneven wear does not occur.
04-11–14
CONVENTIONAL BRAKE SYSTEM
4
2
B
R
B
5
A
3
4

Power brake unit

5
Gasket
A
18.6—25.5 N·m
{1.90—2.60 kgf·m,
13.8—18.8 ft·lbf}
acxuuw00001091
id041100800800

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