OEM Buick Terraza Lash Adjuster

Buick Terraza Lash Adjuster Parts Questions & Experts Answers

• Valve Lifters
  17120070
  Q: How to replace the Lash Adjusters on Buick Terraza?

  A: The valve lifter repair requires starting with lower Intake Manifold disassembly followed by removal of valve Rocker Arms and pushrods and final removal of Intake Manifold oil splash shield. The process starts with lifter guide bolt removal before moving to valve lifter guides and concluding with lifter removal. Apply degreaser onto all gasket surfaces followed by valve train components while inspecting valve lifters and cam lobes for signs of wear. Pre-application of lube gm p/n 1052367 (Canadian P/N 992869) or equivalent should coat all valve lifters before putting them back to their original positions. The valve lifter guides should be installed along with their guide bolts which need torque adjustment at 10 nm (89 inch lbs.). Finish up by installing the Intake Manifold oil splash shield followed by valve rocker arms and pushrods and finally the lower Intake Manifold.