GM 97240416 Rod,Valve Push

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The first step is to loosen and remove the rocker arms and store them in marked containers along with the rocker arm support bars.

Removing of valve covers from the cylinder heads is to be done by first of all removing one at a time each Rocker Arm Pivot Bolt and taking out the rocker arms, bolts and pivot support pedestal. Keep track of their positions and store them separately. Proceed by removing the pushrods, keeping them in sequence as they are. Each rocker arm has to be checked for wear, cracks, damage as well as binding and roughness of the pivot bearings during inspection. The rocker arm has to be replaced if its bearings are worn or damaged. Also examine the rocker arm pivot support pedestal for any cracks. Make sure that all the pushrods are open at the hole on each of their rocker arms' ends and check them for fractures, large amounts of wear or obstruction in oil holes. After lubricating them with clean engine oil or assembly lube, put back the push rods exactly where they came from. In order to protect the stems of valve along with pushrod ends from damage apply some engine assembly lube on them. For every rocker arm shaft as well as bearing make sure you apply clean engine oil then install loosely into original locations (where they were removed). Rotate crankshaft to TDC on compression stroke for number 1 piston then tighten intake valve rocker arms for specific cylinders. Rotate crankshaft 360 degrees then tighten intake valve rocker arms on other cylinders. At last put on valve covers start engine and listen for unusual noise coming from valve train and to check for oil leaks.

Next, remove the pushrods and store them in order.

The pushrods should be inspected for cracks, excessive wear, and bending.