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Home >> Ford >> 1992 >> Crown Victoria Base, AOD >> Repair and Diagnosis >> Brakes >> Mechanical - Hydraulic >> Disc >> Adjustments >> Master Cylinder Push Rod

Master Cylinder Push Rod

  1. Normally, brake booster-to-master cylinder push rod should never require adjustment. If brake booster is suspected of having an improper push rod length, check and adjust push rod length as necessary. Go to step 2).
  2. Make push rod gauge according to specified dimensions. See Fig 1 . Remove master cylinder from power brake booster (without removing hydraulic lines) and set aside. Support master cylinder to prevent damage to hydraulic lines.
  3. Start engine and place gauge over push rod. See Fig 2 . Adjust push rod nut to provide light tension of about 5 lbs. (2.3 kg) against gauge. Reinstall master cylinder.
Fig 1: Master Cylinder Push Rod Gauge ID
G90J08166Courtesy of FORD MOTOR CO.
Fig 2: Measuring Brake Booster Push Rod Length
G56012Courtesy of FORD MOTOR CO.
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