If the cylinder head was submitted to a workshop for valve repair, the valves will already be installed in place, complete with all parts. In this case, begin assembly following point 4.
1. Install new valve stem seals onto the valve guides. To install the oil deflector caps onto the guide bushings, lightly tap the mandrel with a hammer. Avoid turning the cap when installing it, make sure it is placed evenly on the sleeve, otherwise the seal of the valve stems will not be ensured.
2. Install the valves, being careful not to damage the valve stem seals, lower spring seat washers, springs, retainers and snap rings.
3. Compress the valve spring using the tool and install the crackers. Release the spring, make sure that the crackers enter the upper groove of the valve stem. If necessary, lubricate the crackers with grease before removing the device to ensure better retention.
4. Install the camshaft.
5. Lubricate the rocker arms and shafts with fresh engine oil. Install the rocker arms with shafts and tighten the bolts to the specified torque and in the specified sequence.