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Push Rod Adjustment

  1. Push rod height check or adjustment is required if master cylinder and power unit are separated, or if push rod is replaced or transferred from one unit to another, or if misadjustment is diagnosed as cause of braking problems.
  2. Place gauge over push rod and adjust push rod nut to provide a slight tension (approx. 5 lbs.) against gauge. Ford Motor Co. push rod gauge may be made according to dimension shown in illustration. American Motors push rod height must be adjusted to.995-1.00", using a similar, suitable tool (J-9571).
  3. To verify correct adjustment, sight through rear port of master cylinder when attaching to power unit. Master cylinder piston should not move as it contacts push rod. Maximum allowable movement is.015".
    Fig 1: Measuring Push Rod
    G09333043Courtesy of CHRYSLER GROUP, LLC
    Fig 2: Ford & Jeep Type Gauge
    G09333044Courtesy of CHRYSLER GROUP, LLC