1. Lubricate the valve stems with engine oil and insert them into place. Install the valves in the places where they were lapped.
2. Install the spring seat. Dip the slinger cap in fresh engine oil and install it over the valve stem, being careful not to damage its sealing lips. To install the oil seals, use a special metal mandrel.
3. Install the valve spring and spring cup.
4. Using a special tool, compress the valve spring and install the crackers in the recess of the valve stem and lubricate them. Remove the spring compressor tool. Repeat this operation for the rest of the valves.
5. Tap the end of the valve stem with a hammer through a wooden block so that all valve elements are clearly installed in their places.
6. Install the camshaft, tappets and gaskets.
7. Install the rest of the parts in the reverse order of removal. Replace gaskets if necessary. On 2.1 liter diesel engines, install a toothed belt tensioner.