2. If you gave the cylinder head for a valve overhaul, the valves and related parts should already be installed in their places. Start the assembly procedure from point 8.
3. Establish saddles of springs before cuffs of valves.
4. Install new cuffs 8 each of the valve guides.
Note. On engines with a displacement of 3.1 and 3.8 liters, cuffs are installed only on the intake valves. Using a hammer and a large socket or collar installer, lightly tap each collar until it is fully seated in the guide bushing (see illustration). Do not rotate the cuff during installation as this may cause the seal to be lost.
11.4. Be sure to install new valve stem seals on top of the valve guides: 1 - cuff in the installation device, 2 - grind the end of the valve stem before installing the device, 3 - cuff, 4 - device for installing the cuff
5. Starting at one end of the head, lubricate and install the first valve. Apply molybdenum grease or clean engine oil to the valve stem.
6. Install valve springs (and washers if used) on the valves. Compress the springs with a valve spring compressor and carefully place the retainers into the grooves, then slowly release the springs and check that the cotters are properly installed. If necessary, apply a small amount of lubricant to each cracker to set them in place (see illustration).
11.6. Before installing, apply a small amount of lubricant to each cracker, as shown in the photo - this will keep it on the valve stem after the spring is released
7. Repeat this procedure for the remaining valves. Make sure that the parts return to their original places and do not mix them up.
8. Check the height of installed valves using a 1/32 inch ruler or a caliper with an indicator. If the head was given for service to the workshop, the heights must be maintained (however, they need to be checked). Measurement is taken from the top of each spring seat, pivot or top nut to the bottom edge of the poppet. If the height exceeds the value specified in this section, then the desired number of washers can be placed under each spring to adjust the height.
Attention! Under no circumstances reduce the height of the spring with washers below the prescribed value.
9. Apply molybdenum grease to the surfaces of the rocker arms and struts, then install the rocker arms and struts to the cylinder head. Tighten the bolts by hand.