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Hydraulic Valve Lifter Assembly: Reassembly

  1. Thoroughly clean and inspect all components. If any components are worn or damaged, complete lifter must be replaced. Position check ball on small hole in bottom of plunger. Insert check ball spring on seat in ball retainer and position retainer on ball so that spring seats on ball. Using a screwdriver, press plunger into position.
  2. Slide lifter body over spring and plunger, lining up oil feed holes. Fill assembly with SAE 10 oil and depress plunger to stop. With plunger depressed, insert a 1/16" drift punch into feed holes. Release plunger and refill with SAE 10 oil. Install metering valve, push rod seat and retainer. Depress push rod seat and remove drift punch.
    NOTE: Before installing lifters in engine, coat bottoms with "Molykote" or equivalent.
    Fig 1: Cutaway View of Hydraulic Valve Lifter Assembly
    G09330494Courtesy of GENERAL MOTORS COMPANY
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