For 1990-2009 cars only
Valve Inspection Procedure
- Inspect the valve for damage from the head to tip for the following conditions:
- Replace the valve if any of these conditions exist.
- Inspect the valve springs. If the valve spring ends are not parallel, replace the valve spring.
- Inspect the valve spring seating surface of the valve rotators for wear or gouges. Replace as required.
- Measure the valve stem diameter (1) and valve guide inside diameter (2). If it is out of specification, replace it. Refer to Engine Mechanical Specifications.
- Measure the valve spring free length (a). If it is out of specification, replace it. Refer to Engine Mechanical Specifications.
- Measure the valve spring right angles (a). If it is out of specification, replace it. Refer to Engine Mechanical Specifications.
| • | Pitting in the valve seat area (1) |
| • | Lack of valve margin (2) |
| • | Bending in the valve stem (3) |
| • | Pitting or excessive wear in the stem (4) |
| • | Worn valve key grooves (5) |
| • | Worn valve tip (6) |
Note: Valve guide is not movable. Replace the cylinder head if it is out of specification.
