If the valves have been ground in, they must be installed on their seats, since the wear pattern of the valves varies.
- On a 1.6 liter engine, clean the semicircular plug and its seat in the cylinder head. Cover the surface of the plug with sealant and insert it into the head.
- Insert the valves into the valve guides. Lubricate the valve stems. When installing old valves, insert them into their original guide bushings. The same applies to lapped valves.
- Place oil caps on the valve stems and press them with a tube. The oil deflector caps of the intake valves in the upper part are painted brown, and the caps of the exhaust valves are painted black, as can be seen in Fig. 61.
Pic. 61. Oil seals. Marked surfaces are either brown in color (1 - intake valves), or black color (2 - exhaust valves).
- Install valve springs to cylinder head (when reinstalling springs on old valves). Place the upper spring cups and install the valve tool to compress the springs. If the end of the valve stem protrudes from the upper spring cup, insert both halves of the valve cotters into the groove of the stem and slowly release the valve tool.
- Use a plastic hammer to hit the valve stems from above. In this case, poorly installed valve cotters pop out. As a precaution, place a rag on the ends of the springs to prevent the parts from flying apart.
- If you need to install bushings for spark plugs (1.6 l engine),press new bushings into the head so that they protrude 46.6-47.4 mm above the top surface.
- Insert the pushers and shims into their original positions. Lubricate the parts well.
- Check the surface of the cylinder head and cylinder block and be sure to remove any traces of the old seal. After washing the cylinder block, remove any remaining detergent from the threaded parts of the cylinder head bolts.
- Install all parts removed from the cylinder head.