Overhaul

Cylinder Head









NOTICE: Aluminum surfaces are soft and can be scratched easily. Never place the cylinder head gasket surface, unprotected, on a bench surface.

NOTE: Left side shown, right side similar.









Disassembly

1. Install the Valve Spring Compressors on the cylinder head.





2. NOTE: It will be necessary to adjust the Valve Spring Compressor as needed to get proper alignment with the valves.

NOTE: Position the cylinder head on 2 pieces of wood to aid on removing the valves.

Using the Valve Spring Compressor, compress the valve spring and remove the valve stem keys.

3. Remove the valve spring retainer and valve spring.

4. NOTE: It may be necessary to file the tip of the valve to aid in removal of the valve from the cylinder head.

Remove the valve.

5. Remove and discard the valve seal assembly.

6. Clean and inspect the valves, valve guides and valve seats. Replace components that are damaged or out of specification. For additional information, refer to Specifications.

Assembly

1. NOTE: Lubricate the valve seal assembly with clean engine oil prior to installing.

NOTE: The valve seal assembly will not seat completely by hand. The Valve Spring Compressor will seat the valve seal assembly when installing the valve stem keys.

Install the new valve seal assembly.

2. Install the valve.

3. Install the valve spring and valve spring retainer.

4. NOTICE: Verify that the valve stem keys are correctly seated after removal of the Valve Spring Compressor or engine damage may occur.

Using the Valve Spring Compressor, install the valve stem keys.

- Verify that the valve stem keys are correctly seated.