2. If you have had the cylinder head rebuilt, the valves and associated parts should already be in place. Start the assembly procedure from step 8.
3. Install the spring seats in front of the valve seals.
4. Install new seals 8 on each of the valve guide bushings.
Note: On engines with a working volume of 3.1 and 3.8 liters, cuffs are installed only on the intake valves. Using a hammer and a large end head or fitting device for fitting cuffs, place each cuff by tapping lightly so that it fits completely into its place in the guide sleeve (see illustration). Do not rotate the cuff during installation, as this may cause it to lose its seal.
11.4 Be sure to install new valve stem seals in the upper portions of the valve guides: 1 - cuff in the installation tool, 2 - grind the end of the valve stem before installing the tool, 3 - cuff, 4 - cuff installation tool
5. Starting at one end of the head, lubricate and install the first valve. Apply molybdenum grease or clean motor oil to the valve stem.
6. Install the valve springs (and washers if used) on the valves. Compress the springs with a valve spring compressor and carefully install the retainers into the grooves, then slowly release the springs and check that the keepers are installed properly. If necessary, apply a small amount of grease to each cracker to help them fit into place (see illustration).
11.6. Before installation, apply a small amount of grease to each cracker as shown in the photo - this will hold it on the valve stem after the spring is released
7. Repeat this procedure for the remaining valves. Make sure that the parts are returned to their original places and do not mix them up.
8. Check the height of the installed valves using a ruler with a division value of 1/32 inch or a caliper with an indicator. If the head was given to a workshop for servicing, the heights must be maintained (however, they need to be checked). The measurement is taken from the top of each spring seat, pivot or top nut to the bottom edge of the plate. If the height exceeds the value specified in this section, then the required number of washers can be placed under each spring to adjust the height.
Caution: Do not under any circumstances reduce the spring height below the specified value using washers.
9. Apply molybdenum grease to the surfaces of the rocker arms and struts, then install the rocker arms and struts onto the cylinder head. Tighten the bolts by hand.