Pontiac 10166355 Rod Assembly, Valve Push (152Mm) *Gree*Green Inside Diameter

To remove the components, first disconnect the cable from the negative terminal of the battery. Next, remove the valve cover(s). Starting at the drivebelt end of one cylinder head, remove the rocker arm mounting bolts one at a time and detach the rocker arms, pivot balls, and pedestals, ensuring to keep each set of rocker arm components separately stored in marked plastic bags for proper reinstallation. The rocker arms have a pedestal mount captured by a metal sleeve inside, and while components can be separated by tapping the bolt out of the pedestal, they typically remain as an assembly. Remove the pushrods and store them separately to avoid mixing them up during installation, using a perforated cardboard box for organization and labeling the front end of the engine. Inspect each rocker arm for wear, cracks, and damage, particularly at the contact points with the pushrods and valve stems, and ensure the rollers operate freely and the pushrod end holes are open. Check the pushrods for cracks and excessive wear, rolling each across a piece of plate glass to detect any bends. For installation, lubricate the lower end of each pushrod with clean engine oil or moly-base grease and reinstall them in their original locations, ensuring they seat completely in the lifter socket. Apply moly-base grease to the ends of the valve stems and the upper ends of the pushrods, then install the rocker arm assemblies, tightening them to the specified torque while ensuring proper engagement of the pushrods in the rocker arms and correct positioning of the pedestal projections. Finally, install the valve covers, start the engine, and check for oil leaks and unusual sounds from the valve cover area.