Checking the valves (VW Golf 2)

Diesel engines are equipped with reinforced valves (figure 190). They can be recognized by the three grooves at the end of the rod. The design of the crackers has also been changed (they have three protrusions on the inner surface) and the upper spring plate (marked with yellow paint). The valves in a turbocharged engine have a special design.



In an engine with hydraulic tappets, the valves are shorter. This should be taken into account when replacing the valves. Minor damage to the working chamfer can be repaired by grinding the working chamfer of the valve to the chamfer of the valve seat as described above.

Check the main dimensions of the valves (figure 191), paying attention to the difference between the inlet and outlet valves. Valves that do not correspond to the data given in Table 3 must be replaced. If the end of the valve stem is worn, it can be ground, removing no more than 0.5 mm of material.



The intake valve plate can be ground provided that the dimension "g" (figure 191) will not decrease by more than 0.50 mm.

Exhaust valves cannot be ground, as they are made of a special material. Valve repair may only include grinding of its working chamfer or replacement.