Master Cylinder: Inspection

Inspect cylinder bore for scoring or corrosion. Staining which has not pitted or roughened surface of cylinder bore may be removed with crocus cloth. If cylinder bore is scored, pitted, or corroded, General Motors and Jeep recommend replacing cylinder assembly. Chrysler Corp. permits honing bore, providing bore diameter is not increased more than 0.002". IHC allows honing, if piston-to-bore clearance does not exceed 0.005" after honing.