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Master Cylinder Push Rod: Adjustment

  1. Remove power unit from vehicle and place power head assembly in padded vise with front housing up. Remove front housing seal.
  2. Insert push rod (flat end first) into piston rod retainer. Depress rod with 40-50 lbs. force to ensure it is seated. Place "Go/No-Go" gauge (J-22647) over push rod. Make sure gauge does not contact studs. See Fig 1.
  3. "Go" or short tab on gauge should just clear push rod; "No-Go" or long tab on gauge should contact push rod. If push rod is too long or too short, an adjustable push rod must be used. Adjust new push rod to correct height using "Go/No-Go" gauge.
Fig 1: Push Rod Gauging Method with "Go/No-Go" Gauge J-22647
G26661