Mazda MX-3 silhouetteMX-3

Conventional Brake System — Rear Brake (Drum): Quick Inspection & Removal / Inspection / Installation

P-42parts diagram

REAR BRAKE (DRUM)

Quick Inspection (On-vehicle)

Rear Drum Brake Quick Inspection (On-vehicle)

  1. 1
    Jack up the rear of the vehicle and support it with safety stands.
  2. 2
    Remove the plug as shown in the figure, then inspect the thickness of the brake lining through the inspection hole.
    Rear drum brake backing plate viewed from the rear with an inset (right) showing the plug/inspection hole used to check brake lining thickness.
  3. 3
    Replace if below the limit.
StandardBrake lining thickness
4.0mm {0.16 in}
MinimumBrake lining thickness
1.0mm {0.04 in}

Removal / Inspection / Installation

Rear Drum Brake Removal / Inspection / Installation

  1. 1
    Remove the lining in the order shown in the figure, referring to Removal Note.
    Exploded view of the rear drum brake assembly with numbered balloon callouts 1-21: screw, brake drum, return spring, hold pin and spring, anti-rattle spring, brake shoe (leading side), brake shoe (trailing side), stopper spring and clip, return spring, parking brake cable, operating lever assembly, brake pipe, bolt, wheel cylinder assembly, wheel cylinder gasket (marked REPLACE), dust boot, hub cap, locknut (marked REPLACE), wheel hub assembly, bolt and backing plate. Grease/SST markers present. Tightening torque labels: 16-21 N·m {1.6-2.2, 12-15}; 9.9-12.7 N·m {100-130 kgf·cm, 86.8-112 in-lbf}; 19-25 N·m {1.9-2.6, 14-18}; 46-58 N·m {4.6-6.0, 34-43}; 9.9-14.7 N·m {100-150 kgf·cm, 86.8-130 in-lbf}; 117-235 {18.0-24.0, 131-173}. Unit note bottom-right: N·m (kgf·m, ft-lbf).
  2. 2
    Inspect all parts and repair or replace as necessary.
  3. 3
    Install in the reverse order of removal, referring to Installation Note.
Parts DiagramFig. fig2
#Part NameNotes
1Screw
2Brake drumRemoval Note ... page P-43; Inspection ... page P-43; Installation Note ... page P-43
3Return spring
4Hold pin and spring
5Anti-rattle spring
6Brake shoe (leading side)Inspection ... Above
7Brake shoe (trailing side)Inspection ... Above
8Stopper spring and clip
9Return spring
10Parking brake cable
11Operating lever assembly
12Brake pipeRemoval Note ... page P-43
13Bolt
14Wheel cylinder assemblyDisassembly / Inspection / Assembly ... page P-44
15Wheel cylinder gasket
16Dust boot
17Hub cap
18Locknut
19Wheel hub assembly
20Bolt
21Backing plate

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