OEM Chevrolet Malibu Lash Adjuster

Chevrolet Malibu Lash Adjuster Parts and Q&A

• Valve Lifters, Green Line
  12686787
  Q: How to service and repair the exhaust and Lash Adjuster on Chevrolet Malibu?

  A:

  To service and repair exhaust and Lash Adjuster, start with the removal of the Camshaft cover and the upper Timing Chain Guide. After that, make sure to install the Camshaft sprocket holding tool (J 43655) and unscrew the intake as well as the exhaust Camshaft sprocket bolts, discarding them as well. Slide the cam shaft sprockets forward and mark the bearing caps so as to be fitted in their original positions. Precede to remove each bolt on each cap a turn at a time until no spring tension is on Camshaft after that remove bearing cap, exhaust Camshaft, roller following on the Camshaft, and the hydraulic element on lash adjusters. For installation, turn the valve tips and install the hydraulic element lash adjusters and then the Camshaft roller followers where the alignment notches align with the Camshaft sprocket. While assembling (install) the exhaust Camshaft and the Camshaft bearing caps, tighten the Camshaft bearing caps with 3 turns increments until seated, then a final torque of 10nm (89 inch lbs). Next, fit Camshaft sprockets onto camshafts, tightened new Camshaft sprocket bolts by hand, and remove the Camshaft sprocket holding tool (J 43655). Finally, you should tighten the bolts of the Camshaft sprocket to 85 nm (63 ft. Lbs.) + 30 degrees (precession), after which you need to install the upper Timing Chain Guide; then, with the torque 10 nm (89 inch lbs); install the Camshaft cover.
• Valve Lifters
  17120070
  Q: How to replace the Lash Adjusters on Chevrolet Malibu?

  A:

  To replace the valve lifters, begin with the removal of the lower Intake Manifold, and then the valve Rocker Arm and pushrods, and finally the Intake Manifold oil splash shield. Next, pull out the lifter guide bolts and the valve lifter guides, before we pull out the valve lifters. It is also necessary to clean all surfaces of the gaskets with degreaser and ensure the parts of the valve train are also clean. Check the valve lifters and cam lobes for wear and tear. For installation, prelube gm p/n 1052367 (Canadian P/N 992869) or equivalences, apply the coating on the valve lifters and install them in their original location. Install the valve lifter guides again, also followed by the fastener notice in service precautions, install the valve lifter guide bolts, which should be tightened up to 10 nm (89 inch lbs.). Finally, replace the Intake Manifold splash shield for oil, valve rocker arms, pushrods, and the lower Intake Manifold.