Assembly

All cylinder head parts should be cleaned and arranged in their respective order to ease reassembly.

OHV Engines

1. Lightly lubricate the valve stems and insert all of the valves into the cylinder head in their original locations.
2. Install any valve spring shims which were removed.
3. Install the new valve stem seals as follows:
   • If the valve seal presses over the guide, lightly lubricate the outer guide surfaces.
   • If the seal is an O-ring type, it is installed just after compressing the spring but before installing the valve locks.
4. Place the valve spring and retainer over the stem.
5. Position the spring compressor tool and compress the spring.
6. Install the valve locks.
7. Relieve the spring tension slowly.
8. Ensure that the valve locks are properly seated.
9. Remove the spring compressor tool.

OHC Engines

Cup Type Camshaft Followers

1. Lightly lubricate the valve stems and insert all of the valves into the cylinder head in their original locations.
2. Install any valve spring shims that were removed if using the original springs.
3. Install the new valve seals as follows:
   • If the valve seal presses over the guide, lightly lubricate the outer guide surfaces.
   • If the seal is an O-ring type, install it after compressing the spring but before installing the valve locks.
4. Place the valve spring and retainer over the stem.
5. Position the spring compressor and OHC tool over the spring and retainer. Compress the spring and install the valve locks on the stem.
6. Relieve the spring pressure slowly and ensure both valve locks are properly held in place by the retainer.
7. Remove the spring compressor tool.
8. Install the followers, camshaft(s) and any other components that were removed for disassembly.

Rocker Arm Type Camshaft Followers

1. Lightly lubricate the valve stems and insert all of the valves into the cylinder head in their original locations.
2. Install any valve spring shims that were removed if using the original springs.
3. Install the new valve seals as follows:
   • If the valve seal presses over the guide, lightly lubricate the outer guide surfaces.
   • If the seal is an O-ring type, install it after compressing the spring but before installing the valve locks.
4. Place the valve spring and retainer over the stem.
5. Position the spring compressor tool over the spring and retainer. Compress the spring and install the valve locks on the stem.
6. Relieve the spring pressure slowly and ensure that both valve locks are properly held in place by the retainer.
7. Remove the spring compressor tool.
8. Install the camshaft(s), rockers, shafts and any other components that were removed for disassembly.