- Clean the valve rocker arms and valve lash adjusters
in cleaning solvent.
 
- Dry the valve rocker arms and valve lash adjusters with compressed
air.
 
- Inspect the valve rocker arms for the following conditions:
 
| •  | Excessive wear at the valve contact or valve lash adjuster socket
area | 
 
| •  | A worn or damaged roller. The roller should rotate freely with
no binding or roughness. | 
 
Important: Keep the valve rocker arms and valve lash adjusters in the order from
where they where removed.
- Inspect the valve lash adjusters for the following conditions:
 
| •  | Clogging of the oil passage |