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Home >> Mazda >> 1994 >> MX-3 Base, Automatic >> Repair and Diagnosis (Single Page) >> Brakes >> Mechanical - Hydraulic >> Disc & Drum >> Adjustments >> Master Cylinder Push Rod

Master Cylinder Push Rod

NOTE: Push rod has an adjustment screw to maintain correct distance between booster push rod and master cylinder piston. If push rod is adjusted too long, it prevents master cylinder piston from completely releasing hydraulic pressure, causing brakes to drag. If push rod is adjusted too short, it causes excessive pedal travel and an undesirable clunk in booster area.
  1. Place Adjustment Gauge (49-F043-001) onto master cylinder. Turn screw on adjuster gauge until it contacts piston. Remove adjuster gauge. Apply 19.7 in. Hg to power brake unit.
  2. Invert adjuster gauge and place it on power brake unit. Adjust push rod on power brake unit until there is no clearance between push rod and adjuster gauge screw.
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