Details of the valve timing mechanism:
1 — camshaft; 2 - mounting pins; 3 — intermediate shaft; 4 — intermediate shaft flange; 5 — camshaft pulley; 6 — intermediate shaft pulley; 7 - washers; 8 — camshaft thrust flange; 9 - toothed belt; 10 - tension roller; 11 — timing belt tensioner; 12 - Protective cover of the toothed belt of the 1st variant; 13 - Protective cover of the toothed belt of the 2nd variant; 14 — TDC sensor; 15 - lifting paws; 16 — rocker arm axles; 17 — flange; 18 — rocker arms; 19 — spring holder of rocker arm axis; 20 - adjusting eccentric; 21 - plug; 22 - crackers; 23 — upper valve spring plate; 24 - oil deflector cap; 25 — valve spring; 26 - lower valve spring plate; 27 - inlet valve; 28 — exhaust valve.