Note: This section covers repair procedures for 2.0L four-cylinder petrol and diesel engines. The procedures for smaller engines are similar. Technical information on cylinder head components is provided in Chapter "Data for adjustments and control of the mechanical part of gasoline and diesel engines".
Loosen the mounting bolts one by one in the prescribed order (see picture).
Remove:
- camshaft bearing housing (3);
- camshaft (4);
- camshaft oil seal.
Remove, marking their position: roller rocker arms (5) and hydraulic tappets (6).
Using a valve spring compressor, remove:
- valves (7);
- crackers (8);
- thrust washers (9);
- springs (10).
Remove the oil seals (11) using pliers P.
Remove the check valve (12). Clean the seal seating surfaces on the camshaft using a suitable cleaner.
Attention. Abrasive or sharp-cutting devices and tools must not be used for cleaning. The surfaces to be joined must not have any traces of impacts or cracks.
Assembly
Install the new valve (12) into the channel (13).
Caution: Make sure the check valve is installed in the correct direction.
Install new valve stem seals using tool P.
Reinstall:
- valves (7) (lubricate the valve stem);
- thrust washers (9);
- springs (10);
- crackers (8).
[Source available on the website: peugeotbook.ru]
Caution: Avoid touching the roller contact tracks with your hands. Apply a thin layer of engine oil to the rollers and check that they do not stick when rotating.
Reinstall the pushers:
- lubricate the tappet housings;
- roller rocker arms (5) and hydraulic tappets (6);
- make sure the tappets rotate freely in the cylinder head.
Apply sealant in area (D) around the entire perimeter of the gasket surfaces.
Note: Install the camshaft into the bearing housing.
Tighten, then tighten the mounting bolts one by one in the specified order.
Before installing the camshaft oil seal, first make sure that there is no sealant residue in its seat.
Fill the space between the lips of the seal with grease.
The procedure for installing camshaft seals (see corresponding description).
Install a new seal.
Install the camshaft flange in place.