Intake and Exhaust Valves - Removal

REMOVAL






NOTE: The cylinder head(s) must be removed in order to perform this procedure.

1. Remove and isolate the negative battery cable.
2. Remove the cylinder head covers Cylinder Head Cover(s) - Removal
3. Remove the rocker arms and lash adjusters Valve Rocker Arm - Removal
4. Remove the camshaft bearing caps and the camshaft Camshaft - Removal
5. Remove the cylinder head(s) Cylinder Head - Removal

NOTE: All valve springs and valves are removed in the same manner; this procedure only covers one valve and valve spring.

6. Using Tool C-3422-D or C-3422-C Valve Spring Compressor and Tool 8519 Adapter (2), compress the valve spring.

NOTE: It may be necessary to tap the top of the valve spring to loosen the spring retainers locks enough to be removed.

7. Remove the two spring retainer lock halves.

NOTE: The valve spring is under tension, use care when releasing the valve spring compressor.

8. Remove the valve spring compressor (2).
9. Remove the spring retainer, and the spring.

NOTE: Check for sharp edges on the keeper grooves. Remove any burrs from the valve stem before removing the valve from the cylinder head.

10. Remove the valve from the cylinder head.

NOTE: The valve stem seals are common between intake and exhaust.

11. Remove the valve stem seal. Mark the valve for proper installation.

TESTING VALVE SPRINGS





NOTE: Whenever the valves springs are removed from the cylinder head it is recommended that the valve springs be inspected and tested for reuse.

Inspect the valve springs for physical signs of wear or damage. Using a suitable valve spring tester (1), test the following;

- Specified Valve Spring Height
- Specified Spring Force (Valve Open)
- Specified Spring Force (Valve Closed)

Replace any springs that do not meet specifications Engine - Specifications