Diameter of the D core of the valve is measured at X1 distance.

Inlet valves:

X1=75,14 ± 0,35 mm,

D=5,470–5,485 mm.

Final valves:

X1=77,5 ± 0,35 mm,

D=5,456–5,471 mm.

Diameter of a head of the valve D:

– inlet valves – 32,7 ± 0,12 mm;

– final valves – 27,96 ± 0,12 mm.

Length of the valve is L:

– inlet valves – 109,32 mm;

– final valves – 107,64 mm.

Corner of a working facet And:

– inlet and final valves – 45 °45 ’–45 °.

T head thickness:

– inlet valves – 1,15 mm;

– final valves – 1,27 mm.

Course of valves:

– inlet valves – 9,221 mm;

– final valves – 8,075 mm.

Fig. 2.119. Scheme of check of valves