Mazda MX-3 silhouetteMX-3

CONVENTIONAL BRAKE SYSTEM

P-14parts diagram

Hose item (3) is MTX (manual transaxle) only. This procedure is for ABS-equipped vehicles.

Removal / Installation / Inspection (ABS)

  1. 1
    Remove in the order shown in the figure, referring to Removal Note.
    Exploded view of the master cylinder / power brake unit assembly in the engine compartment. Numbered balloon callouts: (1) fluid level sensor connector, (2) brake pipe with SST flare-nut wrench (tightening torque 12.8–21.5 {130–220, 113–190}), (3) hose (MTX), (4) nuts and washers with SST (tightening torque 12.8–21.5 {130–220, 113–190}; also 9.9–15.6 {100–160, 86.8–138}), (5) master cylinder. Torque values in N·m {kgf·cm, in·lbf}.
  2. 2
    Install in the reverse order of removal, referring to Installation Note.
  3. 3
    After installation, add brake fluid, bleed air, and check for fluid leakage.
Parts DiagramFig. fig1
#Part NameNotes
1Fluid level sensorInspection ... page P-16
2Brake pipeRemoval Note ... page P-12; Installation Note ... page P-13
3Hose (MTX)
4Nuts and washers
5Master cylinderInstallation Note ... page P-14; Disassembly / Inspection / Assembly ... page P-17

Installation Note

Master cylinder — Push rod clearance

Inspect the push rod clearance as follows.

Push rod clearance inspection

  1. 1
    Turn the nut of the SST clockwise to fully retract the SST gauge rod. Attach the SST to the power brake unit.
    Tightening torque: 9.9–15.6 N·m {100–160 kgf·cm, 86.8—138 in·lbf}
    Power brake unit with the SST push rod gauge (49 B043 001) attached and a vacuum gauge/pump connected, viewed in the engine compartment.
    49 B043 001
  2. 2
    Apply 66.7 kPa {500 mmHg, 19.7 inHg} vacuum using a vacuum pump.
  3. 3
    Turn the adjusting nut of the SST counterclockwise until the gauge rod just contacts the push rod end of the power brake unit. Push lightly on the end of the gauge rod to be sure it is seated. Verify that there is no gap between the adjusting nut and SST body.
    Detail of the SST gauge (49 B043 001) seated against the power brake unit push rod, labeling the TOUCHING contact points and the ADJUSTING NUT.
    49 B043 001
SST attachment to power brake unit
9.9 - 15.6N·m

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