In order to change the lash adjusters on the left, you need to remove the specific Camshaft(s), taking out the rocker arms, and further the adjusters as well. Clean and inspect Camshaft(s), Rocker Arm(s), and adjuster(s) repairing or replacing as required. For installation purposes, start with an installation of the adjusters, next an installation of the rocker arms, and lastly, an installation of the desired Camshaft(s). Make sure that you have followed the procedures concerning cleaning and the inspection of the Camshaft and lash adjusters and using the necessary tools as required.