Caution: Wear safety glasses in order to avoid eye damage.
- Clean the valve rocker arm cover in
cleaning solvent.
 
- Dry the valve rocker arm cover with compressed air.
 
- Inspect the valve rocker arm cover for the following:
 
| •  | Damage to the PCV valve grommet (1) | 
 
| •  | Dents or damage to the exterior of the valve rocker arm cover
(2) | 
 
| •  | A dented or damaged cover may interfere with the valve rocker arms. | 
 
| •  | Gouges or damage to the sealing surface (3) | 
 
| •  | Damage to the bolt holes (4) | 
 
| •  | Restrictions to the ventilation system passages |