OEM Chevrolet Avalanche 2500 Lash Adjuster

Chevrolet Avalanche 2500 Lash Adjuster Parts Questions & Experts Answers

• Valve Lifters
  17120060
  Q: How to replace the Lash Adjusters on Chevrolet Avalanche 2500?

  A:

  Starting with the Intake Manifold removal enables access to valve Rocker Arms and pushrods as the next step before accessing valve lifter guides and retainers. The maintenance starts by removing retainer bolts and their corresponding retainer from the valve lifter guides. Before taking off the valve lifters it's vital to mark or organize the valve lifters and guide assemblies according to their original placement. When valve lifters get stuck in their bore due to gum or varnish buildup the valve lifter remover (J 3049-A) will help in their extraction. When replacing the Camshaft all valve lifters need replacement. Apply gm p/n 12345501 and canadian p/n 992704 lubricant or equivalent to coat all valve lifter rollers. Reusing the valve lifters requires maintaining their original position and confirming that the valve lifter guide retainer touches all valve lifter guides before installation. A new retainer must be placed if it shows bending. A bent retainer must be replaced before installation. Place the valve lifter guides onto the valve lifters' flat sections while aligning them precisely to the Camshaft lobes. Install the valve lifters first. Use valve lifter guide retainers alongside their bolts to tighten them up to 25 nm (18 ft. Lbs.). Install the Intake Manifold after replacing valve rocker arms and pushrods.