1. Before assembly, clean all parts and check their condition.
2. Degrease all parts of the cylinder head.
3. Lubricate the valve stems with engine oil, and then insert the valves into their respective guides.
4. Insert the lower valve spring cups.
5. Put new valve stem seals on the valve stems, lubricate them with engine oil and press the caps onto the valve guides.
6. Insert valve springs and upper spring cups.
7. Compress each valve spring in turn with the appropriate tool and insert the cotters. After removing the tool, check the correct installation of the cotters of each valve spring.
8. Lubricate the camshaft bearing seats in the cylinder head with engine oil.
9. Insert the camshaft into the cylinder head sockets.
10. Insert the camshaft seal using the Peugeot tool (fixture 0132T), as well as the plate holding the camshaft, and tighten the plate bolt to 15 Nm.
11. Install intake and exhaust manifolds.
12. Screw on the thermostat housing and install the thermostat.
13. Screw the spark plugs into the cylinder head with a torque of 17.5 Nm.
14. Install the ignition distributor bracket.
15. Install the ignition coil, fuel pump and ignition distributor.