Apply cup plug sealant, Part No. 3375068, to the outside diameter of the expansion plugs.
Use expansion plug drivers to install the expansion plugs in the cylinder head. Refer to the chart below.
NOTE: Use the correct expansion plug driver to make sure the expansion plugs are installed to the correct depth in the
cylinder head. Drive the plug until the shoulder of the driver contacts the cylinder head.
Use clean 15W-40 oil to prelubricate the valve stems.
Install the valves in their original position in the cylinder head.
NOTE: After the valves are installed, put the cylinder head on a flat surface so the cylinder head surface will not be
damaged.
Install the valve stem seal.
Install the valve springs.
Install the valve spring retainers.
Use valve spring compressor, Part No. ST-448, or its equivalent (refer to the Service Tools list) to compress the
valve springs.
Install the new valve spring retainer collets.
NOTE: Use new valve spring retainer collets when rebuilding the cylinder head.
Use a mallet to gently hit the valve stems to make sure the valve collets are correctly seated in the spring retainer.
Use valve vacuum tester, Part No. ST-1257, to vacuum test the valve seating. Refer to Cylinder Head – Vacuum
Testing Valve Seating for Reuse (02-10).
