Camshaft, Lifters and Push Rods: Testing and Inspection

Inspect the following areas:
^ Inspect the valve rocker arms and ball at the mating surfaces. These surfaces should be smooth and free of scoring or other damage.
^ Inspect the valve rocker arms and the mating surfaces. These surfaces should be smooth and free of scoring or other damage.
^ Inspect the valve rocker arm valve pushrod sockets and valve stem mating surfaces. These surfaces should be smooth with no scoring or exceptional wear.
^ Inspect the valve pushrods for scored ends or bends.
^ The camshaft and crankshaft sprockets.
^ The key and crankshaft keyway for wear.
^ The crankshaft timing chain for binding.
1. Set the Camshaft Lobe Lift Indicator on zero.
2. Slowly rotate the crankshaft until the valve pushrod is raised fully.
3. Compare the total lift shown on the Camshaft Lobe Lift Indicator with the specifications.
4. Remove the Camshaft Lobe Lift Indicator.