Details of the gas distribution mechanism of engines B3, B5 and B6: 1 - crankshaft; 2 - a gear pulley of a cranked shaft; 3 - toothed belt; 4 - a gear pulley of a camshaft; 5 - tension roller; 6 - camshaft; 7 - rocker arms; 8 - axis of rocker arms; 9 - inlet valve; 10 - exhaust valve; 11 - valve spring support washer; 12 - oil deflector cap; 13 - valve spring; 14 - valve spring plate; 15 - cracker; 16 - pusher (on carbureted engines).
Details of the gas distribution mechanism of the B6 EGI engine: 1 - crankshaft; 2 - toothed pulley of the crankshaft; 3 - toothed belt; 4 - roller; 5 - tension roller; 6 - a gear pulley of a camshaft; 7 - final camshaft; 8 - intake camshaft; 9 - exhaust valve; 10 - inlet valve; 11 - valve spring support washer; 12 - oil deflector cap; 13 - valve spring; 14 - valve spring plate; 15 - cracker; 16 - pusher.