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 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. |
• | Inspect the camshaft and crankshaft sprockets for wear |
• | Timing chain for teeth that are no longer concentric |
• | The valley between worn teeth |
• | The key and crankshaft keyway for wear |
• | The timing chain for binding or excessive wear |